Found a Marshall Amp in a DUMPSTER...Can We Fix It?

In this video, we'll look at this Marshall guitar amp I recently found in a dumpster. It's not tube, it's a solid state MG100HDFX with digital effects. There is no output. We'll figure out why and follow my trial and error attempts at repairing it. Should be a fun one.
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[@TheGuitologist]

I just want to say to everyone out there like me who is self-isolating right now because of what's going on in the world, God bless you all... Stay safe! With luck and prayers, this too shall pass and we'll be back to normalcy soon.

[@yaknoff379]

You sound like my Aunt in Alabama..... lol, for real.... but you're awesome.....

[@TheGuitologist]

@@yaknoff379 I bet she's a fine Southern belle. ;)

[@AlJohnsGuitar]

For real! At least you got stuff to keep you busy in your exile...lol

[@HighlineGuitars]

How do you stay safe and dumpster dive at the same time?

[@jaycheek254]

@Josh derp You can stick with luck but I'll continue to pray regardless of the outcome.

[@haroldprice1030]

One of my co-workers with a City Street Dept. found a Guitar with case in a trash pile about 15 years ago. He put it in my office one morning and to my surprise I opened the case and there it was... a vintage Gibson Flying V with a broken neck ! It sat in my jam room for a couple of years, but one day my wife snuck it out of the house and took it to a guitar repair shop that fixed it for a hundred bucks and she gave it to me for Christmas. The Guitar is worth $1500....

[@petea8644]

Some band gets done with their set at 2am, and starts unloading their gear... when they realize they're putting stuff in the alley behind the venue, by the dumpster... and brad lives in the area.

[@alohamark3025]

I threw out an M-Audio monitor which was buzzing like mad. My neighborhood mailman took it off my lawn, with my permission. Two weeks later, he tells me he fixed it by replacing two filter caps. Mr. Guitologist, you must have inspired a loyal following throughout the world.

[@fixedguitar47]

Years ago, when the Earth was young, around 1995. Someone tossed out a vintage Ludwig drum kit that had been BRUSH painted. I rescued it, painstakingly restores it to a beautiful natural finish and gave it as a birthday present to my best friend who was also my drummer at the time. Being a drummer... HE PAWNED IT FOR WEED!!! Let us all learn from this. Do NOT trust a drummer.

[@tankthelord1178]

Agreed. They are not musicians so they don't understand. lmao

[@graxjpg]

What animal has three legs and it’s asshole on top? A drum stool.

[@monkeyboy4746]

Jesse Pinkman

[@graxjpg]

Biggus Mickus haha great! I love assuming that all drummers are brain dead. As a lead guitarist, it’s the only way to not focus on my own retardation.

[@sniffmatip3865]

Drummers are Bummers!!

[@727DropA]

Guitar store employee: Throws away junk. Brad in a dumpster at 4 AM: WHO PUT THIS HERE?!?!

[@guitarandgames1386]

I'd like to imagine he just rips it out the employees hands and drives off lmao

[@davidtaylor4975]

@@guitarandgames1386 I like to imagaine that Brad lives in the dumpster Oscar the Grouch style!

[@Music_is_fun]

@@guitarandgames1386 or they just email him to dumpster dive that day, would be way more simple😂😂 these dumpsters were not locked anyway anyone could have picked it up, luckily, someone able to recycle was there at the right moment👍

[@davidsmith3736]

God provides,dumpster or not Amen.

[@hq72hotmale]

A smart person put it in the dumpster

[@andrewpike2924]

That was very interesting. The fault was very difficult to find. I have seen boards burnt and become leaky. Very well done good diagnosis.

[@TheGuitologist]

Thanks, Andrew.

[@AlphaMachina]

That's amazing. It's awesome to see someone taking the time to fix, and even improve stuff like this in a world that throws everything away.

[@DeathCapAmplification]

Similar thing happened to me. I bought a similar model “broken” Marshall combo for $10. It was a Guitar Center employee selling it. I found it was that same output chip. Those output boards and chips are notorious for failing. It was a cheap fix and I donated the amp to a kid who was learning guitar. Score!

[@ardiwrites]

Good on you, man. :D

[@morphine0000]

Great job! It's a better amp that many people give it credit for.

[@moimeme7839]

Mike Knauer sure if you powerup your amp without load and play🤷🏻‍♂️

[@moimeme7839]

morphine0000 of course it’s a marshall. My first amp was the 15 watts version of that

[@AudioStorm1980]

Wish there were more people like u!!!

[@dunnomatico3000]

due you missed that part when you covered everything in mud so you can use the wirebrush

[@bigdoinks196]

and spray it in lacquer

[@damiandziedzic6683]

should said he found it in the weeeeeds haha

[@FloridaManMatty]

😂 That video still makes me laugh so damn hard. Brad’s reaction was priceless.

[@Hokd_diver]

And give it a bath

[@neilchilders]

Cool . I found a 1973 Fender Bassman 50 on the side of the road someone threw away. Had all the vintage tubes 12x7, at7 and rca 5881 power tubes. Had to recap and rewire some of it but now it works great.

[@limpneckmike]

The “SUE THIS” sticker had me on the floor laughing!!!🤣

[@kurtismelrose]

Best bit of the whole video is the “Sue This” directed at Gibbson.🤣😂🔥💘

[@thedavesimpson]

So so so happy to see you saved this amp. Its one of my all time favourite amps. Wicked video. :)

[@garywordsworth9302]

Ah Dave proving you can get ungodly tones out of an Mg100hdfx for many years now Didn't know you watched Brad's videos

[@thedavesimpson]

@@garywordsworth9302 Been watching Mr Brad's vids for a long time now. Informative, interesting, engaging and fun channel. And he's a wicked guitarist. I've learnt a lot from him. :)

[@TheGuitologist]

For no more than these cost, they are a decent amp for someone just wanting to rock out without much fuss.

[@thedavesimpson]

@@TheGuitologist Indoodles do. :)

[@garywordsworth9302]

@@thedavesimpson Brad is a font of knowledge and a killer player.

[@gordonmckluskey3865]

I went to the landfill with my son one day and came home with a perfectly functioning three ton floor jack. Amazing what people throw out!

[@andyevans2336]

First rule in electronics; if you don’t have the correct value fuse, always use a smaller value replacement. The fuse is supposed to blow rather than smoke the ‘protected’ components.

[@jamieleemayjm]

You could cover it in mud, hose it down and then replace every conceivable part.

[@gooberthoreau]

Wire brush my man.

[@jamieleemayjm]

@@gooberthoreau yeah then paint it again with a cheap b&q fence sprayer for that proper restored look.

[@R3TR0R4V3]

Don't forget to chop random wires, solder them back together and then mindlessly probe around with the multi meter! 😜

[@yqwgjsg]

Maybe a create a noodle grill cover and paint it with a roller.

[@jamieleemayjm]

@@neurosmos especially the ones that don't even need removing

[@briankientz2926]

I was wondering if you would be coming back, glad you did.

[@TheGuitologist]

Glad to be back. Needed to clear my head.

[@robertscharlow]

@@TheGuitologist Super, super happy you're back, Brad. Got a big grin on my face when I saw a new Guitologist vid in my feed. Cool video, too! I loves me some dumpster diving. First guitar I ever owned was a dumpster find. Some strange solidbody Jaguar-ish copy, no paint, no electronics. I played it acoustically!

[@DonOblivious]

​@@TheGuitologist I know you said you had some footage prepared ahead of times. Please keep posting the, uhhh, non-controversial tech repair dude stuff. We love that shit! Please don't stop posting to KZbin just because they got pissy about your Shit Post Friday videos! You can still keep growing your channel bud. Lean into the tech shit. If you want to keep up the rant stuff make another channel that's permanently demonetized and we'll follow you there! Hell, you can call your new channel "Shit Post Fridays" and I'll follow it. Just expect it to be a demonetized channel, ya know? KZbin income is a farce: all successful youtubers have a Patreon. It sucks for you guys, but that's how people make money. One of the dudes in my subscription list gave a teary eyed farewell video because he couldn't get KZbin to pay out enough. He hadn't figured out, after nearly 10 years on KZbin, that YT pays like shit and that you have to arrange another income source.

[@Ten80pete]

I'll say this for you man: you are tenacious. I mean, I'd have a hard time calling it quits on repairing almost any amp that I just found somewhere for free. That being said, I'm always far more excited to see you not only fix the issue, but walking us through your thought process as you diagnose the issue, AND communicating which tools you're using, why, anecdotes about prior repairs or quirks that some components/models might have. It's all so helpful, especially when someone brand new to a hobby or passion project, like me is watching. Like watching a skilled surgeon operate... while occasionally poking a part of the patients brain that makes them laugh. 😆

[@keesketsers5866]

It happens, I know someone that found a Harley Davidson from the 1920's in a dumpster (don't remember the exact year or model, this was about 30 years ago). Some builders where cleaning out a house from an old lady that had passed away. He rode past and saw the wheel sticking out the dumpster. Paid the guys a hundred bucks and took it. Restored it later......lucky bastard....nevers happens to me....

[@jayrichardson5811]

The Marshall MG 100 Watt series Amps are incredible bought a Marshall MG 100FX 2X12 Combo in 2009.. No issues at all with it love it

[@oBsRVr666]

Two tips come to mind seeing you repair this: 1) If the faulty component (in this case the TDA chip amp) has already been cut off I find it much easier to just melt the solder on the remaining legs with the soldering iron and pull them out with a small pair of needle nose pliers. This way it's much easier to get the solder out once the legs are out and it's less likely to lift a pad with the desoldering pump. 2) If you don't already own one: An ESR meter is a good investment to check for bad electrolytics. Some electrolytics capacitors fail in such a way that the capacity on a normal DMM will still read fine but the internal impedance will act like a short circuit. You probably know this already. :) Nice repair. Glad you fixed it.

[@caseywilson7768]

Always so impressed with your patience and skills. Great find and great job bringing it back to life

[@matthewjdouglas6471]

Love seeing people using there talents to bring old broken technology back to life. Brilliant

[@vadlasletta]

Yesss! Come back, brad! I’m sitting in lockdown in Norway. There’s nothing to do other than waTching vintage guitologist episodes! Stay safe, rolf

[@tankthelord1178]

Does anybody actually 'know anyone' who has this virus?

[@vadlasletta]

Tank The Lord the reason why we don’t know anyone infected may be lack of testing. Norway with its 5.2 million people has tested more people than the whole Us according to norwegian newspaper. Give it three weeks and I guess I will know a few.

[@TheGuitologist]

Stay safe! And stay in. Godspeed.

[@TheGuitologist]

@@tankthelord1178 Yes. My wife had a patient come into the clinic where she works who turned out to be the suspected second case in our county. Cannot confirm yet because tests are very precious. No one can seem to get them unless you're Tom Hanks or the NBA.

[@marknash7113]

@@TheGuitologist Don't worry! This is more a political viral panic than anything! If you get symptoms, nebulize colloidal silver as a first defense before going to the hospital. Hang in there.

[@forresthouser5807]

Okay, Brother, I just have to share this one with you, Because I know you'll get it, and either laugh...or cry, or maybe both (you say you've given up trying to account for people). My morning coffee stop has a door leading to a hallway where the restrooms are (the restrooms are shared with the restaurant next door). On the door, directly above the door knob is a sign in big black block letters that reads, "TURN THE KNOB...IT WILL OPEN". When I asked the owner about this, she told me that the sign wasn't working when she had it at eye level.

[@TheGuitologist]

I'm surprised some people even know how to pee.

[@peterbollig8035]

Classic.

[@Tedroy]

You are probably the only person that should have found it. Good job!

[@72Z15SS]

I owned the combo version of this amp (100DFX) and it rocked! Unfortunately I had to sell it a couple of years ago due to needing money for bills. You scored a nice Marshall Brad!!! Love your channel!

[@bryandraughn9830]

They made an earlier combo version called the "250/DFX with 2 separate 50 watt output amps. true stereo efx. Really good amps. hard to find.

[@_MOORE_1986]

@@bryandraughn9830 I used to have that amp years ago. It was nice, but now have a Peavey Classic 50 212 and I love it

[@ArsenalEcho]

Man I thought you were gone! So glad to see this video pop up in my suggestions this morning.

[@Juicexlx]

A Marshall in a dumpster? That wouldn't happen in Canada. Not even that awful Marshall CODE. Lollll! Nice catch. Cool video, Brad.

[@jrr832]

Borrowed my mates code, spend some time with it and you'll get some great sounds

[@bensblues]

@@jrr832 Just sold mine for a loud ass fender bassman :)

[@raycymbalisty5503]

i had a code also and does have some nice tones but the app is way to finicky sold mine and bought a boogie nomad

[@TheGuitologist]

Only Fenders in Canada's dumpsters... And empty bottles of Molson Ice.

[@tonyaubin5970]

@@TheGuitologist Funny you should say that. A colleague of mine found a fender amp thrown away and gave it to me. One input jack later and it's been going ever since.

[@PlanetRockJesus]

My understanding of electronics is very limited, having completed a basic electronics course. I've done household electrical repairs and installation for decades, and replaced numerous electronic components min amps, guitars and other devices, but I'm fascinated watching a real pro like this. Kudos.

[@thomasjarosz7406]

Brad, yes your back! God bless

[@TheGuitologist]

I am. And you too. God bless the entire world at this point.

[@thomasjarosz7406]

Brad, just to let you know , every time I watch you I think of my dad. He fixed electronics just like you. Machinest by trade .he taught me how to fish starters, alternators, engines,everything. He would always say if a human built it you can fix it. And if it was alien tech you can be reverse engineered.God bless you and your family.

[@adamfoster6278]

Brad, I understand why you are frustrated with YT but I'm glad to see that your posting. Always look forward to your videos sir.

[@goodun2974]

@@thomasjarosz7406 , "reverse engendered"? I cant tell if you misspelled "engineered" (auto- correct mistake?) or if you were making a joke!

[@jasonanderson02]

YES!!! This gives me a bright spot in this troubled world!

[@morphine0000]

Marshall Valvestate, a very underrated amp. Always had its own sound even if it was unconventional. Many hard rock / metal records were done with it.

[@Deeznutseighthundredthirty]

Umm this isn't valvestate

[@raginrednekk]

Absolutely awesome, that you saved this Marshall!! Thank you for bringing us on this adventure :-)

[@TheBemontsOfficial]

"Sue this" 😂😂😂

[@xxxxneoxxxx]

I noticed that too. Loved it hahaha

[@bobloblaw2548]

Have to admit this was cool as hell to watch. Excuse me while I put on my snorkel. I’m going dumpster diving! Love your channel. Keep up the awesome work!

[@scrapperstacker8629]

Watching this in 2024 because my MG100hdfx just lost all output. The light still comes on but no sound. I will be taking it apart and diagnosing it because it got me through the crazy times of when you put out this video. I have fond memories of spending many hours playing through it while the world stood still.

[@TheGuitologist]

See if the preamp part works by using the preamp out. If it works, then it's likely the exact same problem with the output board. I've seen replacement boards on ebay here and there.

[@scrapperstacker8629]

@@TheGuitologist thanks I will try that.

[@seanlavery2236]

Watching this again 4 years later. I do wanna say Brad, i think those panels inside your car need some Pledge! 😂 You're awesome man!

[@freesk8]

I found a little version of this in a dumpster about a year ago. Marshall MG 10 CD. It needed only two things: the input jack needed to be re-soldered, and the transformer inside had worked loose and needed to be bolted back down. But all the nuts and bolts were rattling around inside. So, that was probably worth about $30 that I got for free. :)

[@andersonamplificatio]

It is so nice to see someone who is grateful. Bless you, brother.

[@myjs_dot_iosupport994]

Some feedback: 1) check fuse, 2) check all the tops of the cylindrical capacitors looking for bulges, 3) smell the big transformer to detect a burnt varnish smell, 4) look for cold-solder joints, 5) check all high-powered connectors for evidence of arcing. When soldering or removing soldering-for Peet's sake-always use flux. When trying to remove solder like you did, smear flux over a braided metal sheath and apply heat to that and you bring it down to the pads (which also have flux). The braided metal will wick the molten solder off cleanly like you wouldn't believe, leaving the pads unharmed. Clean with alcohol and acid brush between desolder/solder events.

[@myjs_dot_iosupport994]

You need one of these: kzbin.info/www/bejne/fajSZKN7fZybi6c When you build your replacement board, it's important to gauge the wires so that they'll carry the same amount of power that the original board did. Look at the width of those +/- rails; I think you under-gauged those connecting wires (pretty sure).

[@ScottfromBaltimore]

I admire your patience and persistence. That amp sounds pretty sweet.

[@DetroitWrecker666]

This video makes me feel like I just went on a adventure with you!

[@TheGuitologist]

You did! :D Thanks for coming along!

[@teeKeri]

Man this was a good episode, 20:30 had me on the edge of my seat, and i´m glad to see You chose to not give up, and got the amp working again. Very educative to watch aswell ! ♥

[@heavydutymayonnaise8212]

I loved all of this video. The headstock. The self made repair. The playing. Great job dude!!!

[@MikeyMack303]

Great score, Brad! Nice, fairly easy fix, and now it's better than when it left the factory! Thanks for showing it to us!

[@edwardprete]

“All this good stuff worth saving!”.... future hoarders episode material... lol

[@SomeJustice19k]

Glad to see you back! Corparate waste is a MAJOR problem in America.

[@keithgrommes300]

I absolutely found great value in this video. You've given me the courage to learn 2M repair. I've always wanted to. Thank you. Glad you were able to figure this out. Easy, now that you showed the troubleshooting path.

[@Twobarpsi]

You saved it! Imagine all the good notes it lives on to crank out 🤘!!

[@Adam-wl8wn]

I was shouting at the screen about the fuse for ages! 😂 Nice video Brad, I always enjoy your show!

[@hrsey71]

new update: all guitar center dumpsters are being ravaged for hidden gems

[@FuskyTheHusky81]

@Gregg Garrison I think people are forgetting about the cloth method....

[@FuskyTheHusky81]

@Gregg Garrison If i'm going out to my forest for something I think all go with the maple leaf. It works and it's effective.

[@FuskyTheHusky81]

@Gregg Garrison no... too far.

[@FuskyTheHusky81]

@Gregg Garrison Thats what ya need a cat for! havnt had a rodent problem for a long time with my cat around lol

[@Markle2k]

@Gregg Garrison Corncobs for the olde skool folk.

[@davecooper360]

I'm actually a huge fan of this particular model, the MG100hdfx. I like the reverb a lot. Also I like the effects loop mix adjust!! Comes in handy for troubleshooting .. take out the effects loop without unplugging anything. I mostly use the clean channel in crunch mode... boost with a Tubescreamer. Plug into a quality cab with good speakers and it sounds great.

[@johnkilvington7527]

Excellent video! I had exactly the same amp, bought on ebay for not working/spares... (had been left at a theatre after a gig). Paid about £38, took it home..didn't work. Fiddled about a bit and found that the main volume pot was faulty and left in a position where nil output existed... Had to take the main chassis out and remove the faulty pot (which was integrated) by deslodering. Worked ok after that. Thing to remember with these amps is that they MUST be connected to speakers otherwise there is nowhere for the power output to go when switched on, result..smoke! I found that the effects on this amp good enough to eliminate the use of numerous pedals.

[@telemangler]

I have never wanted to hear a Marshall MG more than while watching this video.

[@knifeswitch5973]

“Sue This” 😂😂😂 pretty awesome man. Good vid. Peace

[@hestheMaster]

You are quite a trooper and excellent PC board repairer. That was a great idea replacing a dual sided board with a bodged single layer board. You could find a fault easier from the schematic that way. Dumpster diva amp saved! Two thumbs way up!👍🏻👍🏻

[@Cmoth040]

I know what you mean about broken Marshall logos. I replaced the grill fabric on my old Lead 12 Marshall that I've had since 88' a few months ago. Prying off the logo gave me such anxiety I looked up videos on doing it properly. Thankfully, got it off in one piece with the posts intact and was able to remount it into the new fabric. Looks like a new amp. Those logos are expensive to replace.

[@spiritualcramp8000]

believe you? why not? in 1999 i was hanging around home and saw something familiar popping out of a dumpster, getting close i realized it was a guitar neck. i grabbed it and surprise: she was a Hagstrom Viking 1965 cherry transparent red. perfect in all his grace. it's my axe of choice still today. she very rarely gets out of my house, only if she can be all the time stuck to my hands.

[@gerryvillemaire1635]

cool man, i have a 71 hag bass! were lucky peeps!

[@michaelbronfman7648]

can you post a photo? of the 1965 hagtrom? wonder if its looks like Tim Armstrong rancid guitar used at 1994 wetlands, Nyc.

[@davidmorales1136]

Probably thrown in dumpster so someone can go back and get it for themselves.

[@mcspankies1799]

Its an mg100, now i dont know about other place but where i live they are a dime a dozen. It may have been thrown out for that reason or it was probably thrown out because it was bad

[@AsphaltValentine]

It's literally horrible! lol! I've never heard that model and this one is just awful sounding. Waaaay too many knobs to begin with. We love Marshall's and we have quite a few bad ass vintage JCM 800's, Snakes, DSL's and VM's, but none of them sound anything remotely close to this garbage here. It's a cool find for sure and something to resell, but I could never imagine actually playing that in a band situation... Eeeek!!!

[@protestssopeacefulweneedad2017]

More like: probably donated to Brad by Marshall for an endorsement.

[@danejurus69]

@@protestssopeacefulweneedad2017 So Marshall wanted Brad to point out an often happening flaw in their product? Think before you type dude.

[@spiritualcramp8000]

cars kill more people than guns everyday but unfortunately they can't choose their targets otherwise we had less idiots boring us with stupid statements like that

[@michaeldeas1969]

I had a welder on my truck Yesterday and I was only about sixty miles south of you. I could have stopped by and sparked that stand back together for you.

[@craigmoran893]

Just like to say thanks to you tech guys that fix and service our beloved gear, Cheers.

[@REDDRAGON666ful]

I’ve had this same amp for 10+ years now! Never a problem, the distortion just wasn’t enough for me lately, moved up to a Metal Zone and a MXR Fullbore Metal!!!

[@REDDRAGON666ful]

ihate names the Fullbore Metal seems to be doing a great job, my Metal Zone is still a favorite, I only use for certain songs and solos now though...!

[@kongandbasses8732]

Those Marshall MG are not heavy sought after, because they have "not enough tubes" for some korksniffing tube afficionados. To be honest, they have a place in heavy metal, not only because Chuck Schuldiner of Death played a MG series amp. Some guitar channels checked the MG's out and found them not bad at all, if a reasonable priced amp with lots of gain and a brilliant high end with some sizzle (and maybe some noise) is what you are looking for.

[@simonssparestrings8910]

sizzle is the word

[@TheGuitologist]

I didn't know Chuck used one of these. Cool.

[@JakeTerch]

Kong and Basses Chuck used the Valvestate, the MG’s predecessor.

[@resistorstudios]

MG is not what Chuck used nor is it a predecessor. Chuck used two Valvestates, the 8100 and the VS100, exclusively, and that amp series was replaced with the AVT (Advanced Valvestate Technology) after that. These amps are tube and solid state hybrids with a single tube in the preamp section and had a unique voicing. The MG is entirely different and was entirely solid state and marketed towards the entry level niche. The AVT was still around at the time and was intermediately priced at the time while the JCM were flagship models.

[@robertwittjr1198]

brad, the average person has no regard for good knobs. until you need one. when i found my technics sa300 i had to replace illumination bulbs; when i removed the tuning knob the shaft was already cracked, it seems. that part stayed on and the knob came off in my fingers. depth, shaft diameter, half or full circle lots of variables on knobs. super glue and baking soda (learned that on stew mac channel) fixed my knob i had no choice since i could not find one to replace it. glad you are back , oh master of the variac.

[@dazednconfused31337]

An MG15DFX for £100 was my first amp (2002?) which died in a week on headphones. Returned and upgraded to 30W for +£30 and still use it. The volume would suddenly decrease, even after I fixed a few solder joints. Recently I got some Servisol cleaner and cured it briefly. I got my Ibanez SA160QM back then, it always had a wonky tone pot and I broke the jack. I fixed it and finally did a setup last night. I just bought an Ibanez SR300E last week in metallic red too. It sounds pretty good clean and with all the EQ knobs I figure don't need a bass amp.

[@bobmead8184]

Hi Brad.Happy New year and the best wishes to your channel. Your were saying that some people didn't believe about the dumpster amps. Ha, two weeks ago I was checking a dumpster and besides some other cool stuff, like a 25 gal compressor, leaf blower and such, I found Sano tube amplifier from the 60-s! It looks like it had been customized for an accordion player because there is the Sanovox gadget built into the amp cabinet. Not sure though what it does, looks like some kind of tube gadget for the accordion. I believe the amp is 50 watt version of Sano. It has an interesting feature, there is a separate reverb amp built into the power amp (there are 2 chassis in the cabinet, one is the preamp and the other one is a power amp). Anyway, the reverb amp even has its own 8 in speaker. The main speaker is 15 in Utah speaker. Of course another great thing about the amp is that it works except for the reverb, that I am looking into. Some of the tubes look like the original Amperex tubes. Things like that do happen!

[@jamesschupbach5166]

So glad to have you back - stay safe brother. I've got 3 GC Salvage locations in my area. Luckily only one has locked up the treasure trove. Biggest haul so far was over $400.00 in drum hardware still in the boxes. Seems like its all about timing tho

[@kenhancock8931]

1 MAN'S TRASH IS ANOTHER MAN'S TREASURE :) CHEERS BRAD

[@Motocicleiros]

That's incredible! Being totally honest I wouldn't bother to try to bring it to life as soon I saw that "digital FX' section. I immediately thought 'oh, sure, one of those craps' and I really doubt that he would make it work again. I am amazed.

[@user-cv8ix5dg6o]

Really enjoyed this video- Must be a great feeling to be able to repair and build circuits like this -great job.

[@Chinaguitarsceptic]

YESSSSSS! The only thing better than SPF is DUMPSTER DIVING Brad!!!!

[@emmawebber9438]

Really missing the SPF posts :'-( .

[@Chinaguitarsceptic]

@@emmawebber9438 me too but I respect Brad for doing what he has.

[@3dlabs99]

I predict they will be back... The sh*t will build up and we will get one colossal SPF :)

[@scottdunn2178]

Actually, these "crappy solid state" MG Series sound better than some of the $3,000+ "Boutique" tube amps on the market.

[@Whydoyoureadme]

Scott Dunn No, they dont. No need to lie to others or yourself. If you personally prefer a MG that is fine, but what you said is not true. Have you tried playing a MG, a 2203, and a boutique EL34 next to each other?

[@scottdunn2178]

@@Whydoyoureadme Chill. It was just a general statement. I play an early JCM 2000 DSL100. And what's a "boutique EL34"? Just because an amplifier is equipped with EL34's doesn't automatically mean it's a killer sounding amp.

[@richardharrold9736]

@@Whydoyoureadme there are some really awful sounding amps out there commanding stupid money...

[@DakTirCue]

I'm jealous of your level of knowledge/repair expertise. I have an old mid 80's Legend Super Lead 100 (solid state with tube preamp) that I would love for you to work your magic on. No good amp repair here on Long Island.

[@BadMotivator66]

weirdly I have 2 of these! one just had dirty pots and the other has been plugged into the wrong cab and i got it for £35 as it's not working. Hopefully i can get someone to get it working. these amps sound great when they're not on fire! what a find!

[@HellcatCustoms]

Someone probably took their old amp in for a repair and was talked into a new one. In the dumpster this one goes.

[@stevesuv]

Way to go Brad. For what you paid in postage, I would have bought 2 of everything. Even the board. Making your own board when you were already ordering a part from Marshall was Manly!

[@tednugentlives]

I fixed one of these 10 years ago and found the same thing and one other design flaw. The Tda mini output board has a output trace on the edge, when installed in amp can ground our against the heatsink popping fuse..i had to replace another chip.needed to bend the pins before soldering.also the cooling fan (a standard pc axial fan) should be replaced since it caused the overheating anyway. These are worth fixing since the clean channel is amazing.

[@FultonStreetBeats]

I watched it all...super informative. My problem with the same head is that it powers on fine but zero output to speakers or headphones jack. You definitely just picked up a new sub. Great Channel. Thanks brother!

[@TheGuitologist]

Check for audio at the preamp out.

[@FultonStreetBeats]

@@TheGuitologist Nope no audio there. Was going to order a new output and cross my fingers. Lol

[@mrsenorsalami]

I found a 1972 Fender Rhodes stage piano in its case at a council clean up, in perfect condition. And a Shenei Fuzz Wah. Crazy people

[@almostliterally593]

WTF i would orgasm and shit my pants at the same time

[@Imwright720]

We live in a society that when something breaks we just trash it. I have a dust buster, 2 actually, that the switches quit working. I just added in my own. Silly to throw away something that can be fixed. People can diagnose anymore, they are just parts changers. You followed the smoke and used your noggin and figured it out.

[@bradleystereoguitaramplifi9616]

Awesome! I love seeing sparks on the bench! Pesky board every time. Nice save! 🎸

[@nosmoking2933]

Ace. The Guitology Channel ist back. Good on ya, Brad. ✌️

[@stevend9124]

I have the same head right in front of me bought it off craigslist with a 4 12 slant cab it's loud as hell and sounds awesome. Only paid 250, tube vs. solid state I don't know it's awesome 👍🏻👍🏻👍🏻👍🏻

[@johnnybrown9581]

Sue This? I’ve never heard of that guitar brand. Looks cool!

[@TheGuitologist]

It's Authentic.

[@3dlabs99]

Haha yeah ... reminds me of something.. cant quite place it... probably some kind of Fender guitar ;)

[@SuperJiggawhat]

@@3dlabs99 You're right, it definitely looks like a Kiesel...🤪

[@2011littlejohn1]

Impressive demonstration of patience; as a guitar player my equipment knowledge is I plug the guitar into the thing called input and press the switch marked on.

[@bryandraughn9830]

You totally rock man! I'm binge watching your videos to freshen up before I tear into an old Yamaha . It's been sitting there looking at me for long enough! great videos, jamming, and personality!

[@SuperJiggawhat]

The FDD on Marshall amp's stand's for "Frequency Dependent Damping." It basically add's depth and make's it sound more like a tube amp.

[@mrtwistyneck]

SuperJiggawhat my first thought was Freakin' Digital Delayyyyyyyy!!!!!! i'll see myself out

[@SuperJiggawhat]

@@mrtwistyneck I had to look it up on Google lol

[@GuitarMooseMusic]

Man if I could get lucky enough to find a Marshall in my dumpster that I could get to work like that...I’d be more than happy to self quarantine myself!!

[@oetken007]

What I use to power up a candidate for the first time, I have a light bulb in series. It limits the current and lights up if there is a short or very low resistance. Nice Video!

[@Stratisfied22]

A buddy of mine gave me an old silverface musicmaster bass amp that his neighbor had in the garbage pile outside his house. Got it home, put some new tubes in and the thing fired right up and sounded pretty good even with the speaker missing most of the cone. Put in a Celestion V Type speaker and this has turned into one of my favorite guitar amps.

[@dazuk1969]

10/10 for perseverance and bringing that Amp back to life....you play good as well Mr G...peace.

[@elmanoazul]

“SUE THIS!!!” Brad your killin me!! Great stuff keep up the good work!!

[@scotttait2197]

Loved the video , as an electronics engibeer, i was amused and appreciated the d.i.y board , function over form is what you need

[@sickofalldabscensorship721]

I got a Peavey 6505 out of the trash. The cabinet was broke up but none of the electronics were damaged. This amp FKN sick. I was even happier when i saw the list price on it.

[@dylansdad987]

I pulled this from Marshall's glossary of terms: Frequency Dependent Damping (FDD): this special technology emulates the sound and behaviour of a valve amp. It gives a tighter and more defined sound.

[@TheUffeess]

Sweden has been hit so hard by Corona that even the hockey has been stopped. But then you are back and it feels like there is hope for better times. Thanks!

[@jayssonblack3179]

Best video I’ve seen in a long time! I was on the edge of my seat towards the end, lol! I have a special place in my heart for solid state guitar amps because I (like so many others) used them for years before being able to afford a tube amp. You are a great guitar player too, man!

[@iakirov]

I've never heard before of boards becoming conductive. One more thing to keep in mind, thank you. Stay safe!