Seriously? Sawdust causes cancer now? Brad PLEASE don't say things you know nothing of. If you want to see data about asbestos just Google it but please do NOT tell people it is like sawdust. Asbestos fibers are long and sharp and when they get unto lungs...ahh, go read about it. Just please stop being an idiot about deadly things. Also don't guess. No, extra holes weren't drilled into a chassis "in case they wanted to use a bigger transformer". Did you ever think that maybe that bottom "back door" was originally installed higher where the color is different?? Facepalm. Please stick to what you are good at. Yeah I don't know either Kidding. You are good at making g KZbin videos and fixing amps and playing guitar.
@TheGuitologist3 жыл бұрын
I did not say "asbestos is like sawdust". If you want a serious discussion on something, don't attempt to start one by applying a strawman onto your opponent's argument. But in case YOU want to get educated on sawdust, here you go: www.cancer.gov/about-cancer/causes-prevention/risk/substances/wood-dust
@MercutioUK20063 жыл бұрын
I think that's convincing proof that Brad knows what he's talking about.....and that it pays to actually listen to what he says before launching a tirade based on misinformation and/or miscomprehension. Hardwood dust is the most likely culprit and of course working with guitars and amps is very likely to expose you to it's varieties. It's not as much of a risk as some occuptions, but it's certainly food for thought.
@mrh.59033 жыл бұрын
Remember the wearing masks? I seriously got issues with my sinuses, as with my lungs just by sawing and grinding natural wood, for hobby. When I feel sawdust flying around me I squeeze... I've also heard about cancer by oak etc. But just imagine those particles in the lungs... black snot... That's what we got these masks for.
@TheFalcro12343 жыл бұрын
@blaren yes as a matter of fact it does. You make yourself look stupid here not Brad. Not only can it cause cancer, it can and often does cause a few other respiratory issues. Here on KZbin The creator that owns Rosa String Works has lung problems from a lifetime of building and repairing Mandolins, guitars and Ukuleles. Maybe it is you that should not talk about or say things you know nothing of. Just a thought Edit: Congratulations on Making it to the "pinned comment" club
@olivergiles67313 жыл бұрын
Yes it does . Alder for instance is known to be carcinogenic. Depends a little on the species. .
@r1ckgr1m3s82 жыл бұрын
Back in the early 90s my uncle who knows nothing about guitar amps picked up an old vibrolux at a yardsale in Delaware. Some fool spray painted the tweed black Aaauuuugggg! Anyway it would turn on but there were no tubes in it so it sat in my possesion for many years. So fast forward to about 8yrs ago a friend at work who fixes my Marshalls for me, I was telling him about it he said bring it in I'll take a look at it. Turns out it was from 59, he being an engineer & having more disposable income than me said I'll fix it up & you can sell it, OK! So he got new tweed & a handle it had the original Jensen that still worked, not sure what all caps & what not he replaced. Long story short, he put all the time & cash into it & gave me $1200.00 for it in the end. I'm just glad he was able to bring it back from death.
@1Dougloid3 жыл бұрын
After I did some research concerning the types of oil or wax that were used in paper and foil capacitors like the Astron you're holding I am never going to take one apart again. A lot of halogenated compounds were used, i.e., halowax. Good for stability and fireproofing but definitely not something to get too comfortable with. I spray a couple of coats of Krylon clear matte lacquer on those asbestos pads and that makes them non friable.
@caffeinastudio8328 ай бұрын
It’s so good to see full videos like this, it’s not 10 seconds short, plus you actually learn something
@lonnieo46763 жыл бұрын
Lupi,,, to be remembered for something you helped build in 1959 is really something,,, if she's still alive somebody should show her this video
@bertrodriguez30873 жыл бұрын
I was glad to see the fuse argument. Uncle Doug, as you stated, is just absolutely awesome. I know of no better teacher on KZbin. I have said more than once, the world needs more teachers like him. He just has that great teacher quality that is so hard to describe. I like his arguments, but I too have always soldered the fuse first. If you have ever gigged, you know the electricity is very spotty at best at some smaller venues (bar/grille type places). I would rather have the fuse blow before I ever turn my amp on. That's just the way I've always looked at it. And I have seen that happen in improperly grounded commercial sites, more than once.
@nevillegoddard496610 ай бұрын
@@bertrodriguez3087 I think in this case, with this particular type of power switch, wiring the incoming active (hot) wire to the fuse first, is the better way to go. As Brad showed, just a mm or two distance from the switch terminals to the switch 'chassis' is of concern. And that's only the part of the switch we can see on the outside! Normally, or often, the power switch is mostly plastic or bakelite, so the possibility of an internal short to earth inside the switch is almost impossible. In that case I would always wire the incoming mains wire to the power switch first, or else there is mains power running round inside the amp even when it's switched off! What Brad should have emphasised a bit more was the incoming mains wire being connected to the END of the fuseholder, rather than the side.
@rickwahrlich62593 жыл бұрын
Love your channel. I watch you and uncle Doug all the time. I’m a retired audio tech. Brings back fond memories. Thanks
@richardturk71623 жыл бұрын
I have had new handles made by a shoe repair shop they deal in stacked leather and have the machines to sew it. They also can match the color too. I was able to get my cost to 5 bucks a handle and charged $30 for them.
@michaelmiller19653 жыл бұрын
I appreciated the way you discussed your preferred method of installing the power cord. I watch Uncle Doug and your channels to learn about amps, I consider you both very sharp. I've been reading up on amp repair and these videos are very helpful in connecting the dots. Thank you kind sir
@JasonBrockStick3 жыл бұрын
You sir are an inspiration! Great that you share your knowledge on how to save older amps/electronics. You are also an inspiration in your strength as a father and human. Proud to be a watcher of your channel. Thanks for your hard work!
@TheGuitologist3 жыл бұрын
Thanks for the kind words. Glad you dig the channel.
@vayabroder7293 жыл бұрын
Second that. Brad is a good man.
@Ezekiel33USA3 жыл бұрын
I love how much pride you take in these amps and the work you do. I am sure your customer really appreciate that. Enjoy watching your channel and I learn a lot from it. Thanks.
@maxmustardman2983 жыл бұрын
going to a steel panther concert changed my life, its like medicine
@TonySkiens3 жыл бұрын
Kudos on your comments about our Uncle
@pinkmoon4211 Жыл бұрын
Asbestos is deadly my friend thousands of shipyard workers here in Scotland have had a terrible death due to it . Not something to be careless about personally know people who died. Love your show .
@nicholashoell12953 жыл бұрын
Brad! The new 80's retro intro is so cool! Keep it!
@TheRealFreekBos3 жыл бұрын
That was the funniest intro.... thanx. Cheered me up!
@sski3 жыл бұрын
Great video to get my coffee and wake-n-bake on. Yeah, it's my day off from twistin' dials and making other people's music shine. Today I sit and work on my own stuff. And a few moments of The Bradster wailing through that little vintage cube gets the motivational juices flowing. One day, Brad... we're gonna jam. You, me, and my drummer from another. We'll show 'em what a Holy Trinity is all about. (Man, I would dig that so much. Me and Rich backing you up. It would rip.) Anyway, thanks for the video and have a great day!
@METEORAMPS3 жыл бұрын
A lot of times I found scratchy sound on pots due to bad interstage caps leaking DC. Great video Brad, keep on rockin´!
@markr.k82603 жыл бұрын
I have ‘62 Champ. Got it from a friend in the ‘70’s. Never sounded very good until I saw ( you were the 1st you tube channel I watched) you changing caps in an old amp. So I did it to mine last year with the Blue Zoso’s and it sounds so good and very quiet. I recently stuffed the old caps and will change them out soon. Have a ‘57 Deluxe I got from same friend that sounds bad so it will be next. I‘ll stuff the caps on it hopefully Lupe ( the tape is still there) won’t be able to notice. Thanks for the valuable info.
@TheGuitologist3 жыл бұрын
Best of luck with all your electronics endeavors!
@EvilHomer19732 жыл бұрын
I built one of these from the plans in Dave Hunters Amp book. It adds a tone control and a boost switch to the original Fender design. - Evil Homer
@benlogan4303 жыл бұрын
To me if it doesn’t work right it’s value is zero donuts. So, I fix what ever is needed to make the stuff function. I always did that with vintage drums and the collectors would be upset and offer you poo for money. That was always alright because that’s what vintage drums cost me back in the day. Sweet video!
@framusburns-hagstromiii8083 жыл бұрын
I can see reasons for both wiring methods in regards to the fuse and switch. I have seen fuse holders fail more often than those old-style switches. Typically the fuse-holder would Crack and crumble presenting a possible shock hazard if the tip is 'live' and I have seen that. Less often, I have seen those old switches break internally as well, which could present the possible short condition/hazard you base your method on, but I have never seen that happen. Uncle Doug's recommendation seems to be a good way to go if the Amp uses more a modern discreet on/off switch that is more robust and a better overall design....guess it depends on the amps design, component quality, etc. Good one Brad, Cheers!
@kenpowilliamson3 жыл бұрын
nice Vid Brad Good to see you back in the electronic trenches on a regular basis.
@danielsaturnino57153 жыл бұрын
I'd say just unplug the amp from the mains if you are messing with fuses :) thanks for the video man
@santrixhimself36793 жыл бұрын
the simplicity of these few components is pure and true beauty
@josephandrews84832 жыл бұрын
You would be floored on how many classic rock tracks were done in the studio with these tiny monsters!! Both the Randy Rhodes Ozzy albums, Warren DeMartini of Ratt did all the early albums and countless others you wouldn't think guitarist would use recording.
@TheGuitologist2 жыл бұрын
DeMartini used a Super Champ, I think, from the Rivera era on the RATT records.
@jpalberthoward9 Жыл бұрын
@@TheGuitologist Scene from "La Bamba" Sax player:What the hell is that? Richie: it's my amp. Sax player: That looks like something somebody threw away Richie: Well, it's mine now. (Proceeds to play "rip it up", gets the gig)
@AB-ye6cl3 жыл бұрын
G'day from Australia Brandon sent me here
@TheGuitologist3 жыл бұрын
Tell Brandon I said "thank you" and "let's go!"
@alvarofalcon71363 жыл бұрын
Sometimes when you want to check the fuse and it doesn’t come out right away but stays in the fuse cavity, and then you try to get it out with your fingers, that’s when you get shocked. The Uncle Doug wiring avoids this risk.
@timothyb15593 жыл бұрын
Excellent as always. If you break out the sewing machine sign me up for a couple of the handles with the arrow shaped ends.
@patreidcocolditzcastle632 Жыл бұрын
pats tip number 2 with asbestos like on that rear panel i always spray two or 3 coats of a flat clear coat sealer.locks it down solid for at least 15 years and seals it perfectly. Your acoustic tinted spray Brad would work fine as well
@grandudetonesnob71073 жыл бұрын
If the handle manufacturing doesnt pan out, you could make back panels for old amps and call yourself the " Back Door Man"! ... I'm here til Sunday, don't forget to tip your waitress!
@matthewf19793 жыл бұрын
I’ve seen “Lupe” tape go $500 on Reverb. If anyone actually paid that much, I don’t know. Those Astron caps just crumble if you try to mess with them. The yellow molded case is made from some type of very hard epoxy/resin. I’ve never seen a 59 anything with a Schumacher transformer. I’d be willing to bet it’s an early to mid 60 model, especially with all of those extra mounting holes.
@dougckelly3 жыл бұрын
Love the opening clips dude.
@PatrickInCayman3 жыл бұрын
Thanks Brad, I always learn something new from your vids. Cheers.
@michaelstokes44973 жыл бұрын
Brad, the way you have wired the switch after the fuse means that the fuse protect all components within the amp. Bravo and best practice in my book. The power from the switch over the top of the lamp holder may move in time and the insulation then becomes compromised. Maybe better to go under with a blob of silicone snot to retain the movement of wire. Overkill maybe, better then potential problem later as a result.
@trubadorphotography25413 жыл бұрын
Will watch this tonight when I get home from work. 👍🏻 😎🎸➿➿🎛🔊
@jasonkeen7123 жыл бұрын
Perfect mic to use with that amp! Sounds amazing!
@micahwatz11483 жыл бұрын
I really hope you and your wife are doing well man. Kids need you two.
@stonefly693 жыл бұрын
Love your work, Brad! Happy 2022 and all the best!!!
@michaelbennett18833 жыл бұрын
I agree with your wiring on this particular amp. I will say one of the worst shocks I've had was on a 1972 superlead. The ht fuse blew and the filter caps were fully charged even with the amp off and as I replaced it I had one hand on the chassis and my thumb was touching one end of the fuse as I was putting it in. ( those fuse holders are different) I learned my lesson with those type of fuse holders
@ooloncolluphid3603 жыл бұрын
You are completely correct going to the fuse first. There are good engineering decisions that led to the regulations that expect it. In all mains power appliances.
@jenniferwhitewolf37843 жыл бұрын
In regard to fuses, I agree completely with your approach of having the fuse be the very first thing in the circuit from Line (hot) entering the chassis. It is also compliant with UL and CSA standards and practices. Something that might be of interest to a few viewers is the strange fact that many radios from the 1920, 1930s, and into the 1940s, there were no fuses in the AC current loop at all. If collecting and/or restoring antique radios, you need to be aware of the situation, has a safety fuse been installed or not... In out own small collection of antique radios, we have added ‘inline’ fuse holders just inside the chassis, and ALWAYS as the first circuit element, just as you illustrate. If retaining a 2 prong cord, we use a polarized cord to ensure the Line and Neutral are always known.
@lloydluokkala42743 жыл бұрын
I like the comment about the song at 24:08 , sounds like it was played through this champ.
@jasonkirkham5503 жыл бұрын
Great video. I agree with you about capacitors. I suspect the capacitor myth started with salesman that didn't want to fix the amp and jack up the price.
@edwardhannigan63243 жыл бұрын
Great fix, love to see the oldies on the bench..Lots of info and tech stuff Brad..Nice playin'..Ed..uk..😀
@simonnotthepieman15813 жыл бұрын
Hi Brad, 6 mins in and still watching. My 57 has a gap in the lower third of the back which the user could tuck the cable into. I'll carry on watching now :)
@pauljohnson61723 жыл бұрын
You Sir are one hell of a guitar player.
@jimraimondi4102 жыл бұрын
That amp sounds great!
@tim87673 жыл бұрын
Another cool video. Thanks for posting.
@gogglespaesano29313 жыл бұрын
Hey Brad! Glad to hear you laugh. Thanks for the video
@yqwgjsg3 жыл бұрын
The only way I could see the fuse issue being a hazard would be if someone was replacing the fuse and stuck the new fuse into the holder first instead of the cap. Then touching the top of the fuse might be hazardous. However I do like the power being fused ahead of the electronics.
@marcgardiner62783 жыл бұрын
Yup, I've done that before and got quite a wallop for my stupidity, especially as the voltage here in South Africa is 220V!
@srtamplification3 жыл бұрын
I've pulled the fuse holder cap off before and the fuse did not come out with it. Imagine if you were unaware that the fuse was before the switch and thought you were safe to fish it out because you had the switch off. I think it is far more likely to have a novice end-user get shocked by an unswitched fused, than there actually being a short in the switch. Plus if there was a short in the switch, then the CB in the panel should trip.
@scottclark75923 жыл бұрын
@@srtamplification agree 100%, not really a fan of the solder power ground either, could end up going back to 2 prong cord without knowing.
@PrinceWesterburg3 жыл бұрын
RE: Fuse / Switch - I always service my amps in the shower which is how I became a break dancing champion
@TheGuitologist3 жыл бұрын
Greatest movie of all time is "Breakin' 3: Breakin' in the Shower with Electronics".
@srtamplification3 жыл бұрын
@@TheGuitologist Beat Street 2 Electric Boogaloo
@R3TR0R4V33 жыл бұрын
Nice work, dude! 😎 I totally agree on the fuse holder thing too. 👍
@BustedJunkStudio3 жыл бұрын
It's nice to get the outer foil towards the ground or high impedance leg of a circuit but in audio circuits the frequencies are low enough not to matter much. If you're rebuilding your common everyday microwave transmitter it becomes more of an issue.
@sski3 жыл бұрын
About these common everyday microwave transmitters... Crowd control or just coms?
@BustedJunkStudio3 жыл бұрын
@@sski 😃
@jutukka3 жыл бұрын
AFAIK, normally the outer foil is supposed to connect to lower impedance leg of a circuit, or to ground.
@BustedJunkStudio3 жыл бұрын
@@jutukka Glad someone reads these posts, thanks for the correction.
@ColeWheeler4Lyfe3 жыл бұрын
Perfect amp for taste testing your 12ax7 stash.
@TheGuitologist3 жыл бұрын
True dat! I ended up installing a 50s RCA. Really brought out the top end sparkle. Anyone who says tubes don't make a difference are changing the output tubes and playing metal, not changing V1 and playing blues licks.
@sidgar13 жыл бұрын
I love to watch you work on these old vintage amps. It's interesting to see you point out flaws and possible failure points in the designs and how far amp design has come since then. Question: is the song at 24:08 your own original work? It's a very beautiful song! If it's your music, you should use your own original compositions more often!
@folkenbluzer3 жыл бұрын
Interesting channel! I saw you around the metal head hippie show and thought I'd check it out. Looks cool. I have old equipment. I'll check ya later
@russl90293 жыл бұрын
Cool video! I love those old champs! I'm in the process of building a 5f1 circuit..m
@TheTrashologist3 жыл бұрын
When I used to do construction we would cut through the asbestos tiles on the outside of house with an angle grinder
@TheGuitologist3 жыл бұрын
That's just flavor...to a High Life man.
@TheTrashologist3 жыл бұрын
@@TheGuitologist I surely was living the High life then…. And now
@sski3 жыл бұрын
Yeah, we used to do that all the time back in the 80's. No masks either. We were 20-something Ubermen back then so we knew nothing would kill us except getting married. Soon as I did get married I got a blood clot, diagnosed with emphysema, and a fanatical devotion to the Pope. Weird how that happens.
@mikemoyercell3 жыл бұрын
I totally agree and that is how it was always supposed to be done. You always put the fuse first and make sure the hot lead is on the inside not the outside. Say in your house - you wouldnt put a switch before a fuse/circuit breaker now would you?
@fullwaverecked3 жыл бұрын
What a gem. Hard to beat the champ.
@faultlessguitarsandamps11163 жыл бұрын
Yes , I'm a fuse first , then the switch advocate too . Especially as I have had a coupe of broken Carling toggle switches in 70's Fenders to replace recently . When dismantled , you see exactly how they have failed and the possibility of live getting to grounded parts , so the fuse must come first .Even if I hadn't seen these failures , I'd still be doing fuse first . It seems logical to me .
@AuntAlnico43 жыл бұрын
I have 1949 fender tweed handle That dry rotted so I soaked it in armoral , week I didn't soak it,I just sprayed it and it came back to life 😘
@MaxNafeHorsemanship3 жыл бұрын
There are merits to both arguments on how to wire the power cord I guess, but I would be inclined to do it the same way as you. Not to diss Uncle Doug. That man has some serious craftsmanship and skills.
@BustedJunkStudio3 жыл бұрын
There's a lot of schools of thought on this, maybe too many. I've always been of the mind to have the last wire to get disconnected when a cord is ruthlessly yanked out of the chassis to be the ground wire, that's why I always make that wire the longest.
@MaxNafeHorsemanship3 жыл бұрын
@@BustedJunkStudio That makes lots of sense too. Never thought of that one. BTW, just discovered your channel a week ago. That would be the reverse of what I do with shielded leads. The shield takes the strain that the smaller center wires can't handle, but this is something completely different.
@rchavez21123 жыл бұрын
As you said you, "rather replace a cap or a tube than a switched pot". Especially that type of switched pot as they are very hard to find.
@srtamplification3 жыл бұрын
Sounds Awesome!!!
@madeinamericalove47223 жыл бұрын
Awesome work as always! 👍
@jpalberthoward9 Жыл бұрын
How about relic leather handles? They've been doing that with jackets for a long time. Maybe you could put a little metal strip in the middle for strength. If the look was right, they'd probably sell.
@zedcarr61283 жыл бұрын
It would be lovely if you and other You Tube amp techs like Uncle Doug etc. had a meet up or Interweb collaboration of some kind.
@PhilipCockram3 жыл бұрын
I agree with you about the fuse and live connection . I enjoy these videos , even when not in repair or guitar mode , No wooshing is good , I think , LOL It's cool to just hang out with you working and learn a few things along the way . Sounds sweet now brother . Nice job .
@kellykane3123 жыл бұрын
Why do you spend so much time telling us about the fuse socket? If you don't know about the basic simple things like that then you have no business being inside of the amp! I really like your videos and you are a very good technician just please don't spend time with things any novis should know.
@davidlewis31693 жыл бұрын
Thats an awesome, simple Circuit, and sound great. Would have liked to hear a Humbucker through it too
@RaulHernandez-lg5nw3 жыл бұрын
I would leave the 12AX7 out when testing the 2 coupling caps for leakage. The same goes for power tube input grid caps.
@martinlahaie60123 жыл бұрын
Good video and info....real fun to watch...about the Asbestos...beeing from Québec 🇲🇶 who was maybe the number one exporter of this stuff and had my grand father work as a truck driver loading that shit...let me just say ,just to be on the safe side,try To get rid of that stuff man...he died at 51 of lung cancer...
@deanmesserer35543 жыл бұрын
Speaking of fuse holders, when I was a teenager I used to play through a blackface band master. The amp had a vinyl cover on the head and sometimes it would get bumped and the bayonet type fuseholder would jump off and fall into the back of the amp, leaving the fuse sticking out. I would not notice and reach around the back to turn it on and get shocked. Happened a few times before I learnt to check it first, but being usually up on a wooden stage gave me some protection I guess.
@TonySkiens3 жыл бұрын
What a great little amp
@RHR-221b3 жыл бұрын
Appreciated, Brad. As always: Stay free. Rab 🍻 😎 🌠
@Robert-Smith2 жыл бұрын
Would you describe the sag in this amp as the snarl when its cranked? thanks love your videos.
@pauldavis63563 жыл бұрын
Control panel looks much better. But did I miss something - what's with the pilot light?
@walterberg80308 ай бұрын
From what I've read Clapton used one of these old Champs for many guitar tracks on the Layla album, could be BS but I can believe it
@fongy2002 жыл бұрын
The yellow caps they have a green band around one end. Is that the foil end?
@verycrankyperson3 жыл бұрын
Thank you, Brad!
@aevans692 Жыл бұрын
great vid , would have left the original handle , or if needs must a nice leather one , im pretty sure that's a rubber one .. What speaker was fitted , you didn't mention this .. thanks .
@filmmac32 жыл бұрын
Why video do you explain the three prong cord replacement more in depth? Thanks
@beckybones3 жыл бұрын
Brad, I just noticed your white surge protector has a burn mark on it? Now I know you're probably aware of it, but I have to mention it out of my OCD. Thank you for the great vids!
@PaulSmith-qz2re3 жыл бұрын
Hello top amp top tech way to go Brad
@TonySkiens3 жыл бұрын
I always thought you went for the biggest tip possible
@sweettoof90023 жыл бұрын
Oh and that sounds glorious
@nevillegoddard496610 ай бұрын
@@sweettoof9002 Really? I thought it sounded shit! Crackly, buzzy, not good at all. Brad should have replaced that microphonic crap Chinese 12AX7 before he did the demo. I was disappointed.
@3MonkeysGarage3 жыл бұрын
I will share a thought I had on those capsule shaped caps. As opposed to trying to drill them or cut them, which from the attempts I have seen, they are generally brittle and break up, make some semi rounded buttons and glue them to the ends of the new cap. That will get you the general shape, and you can go as far as you like from there. Paint them blue or yellow, stick on a label. At any rate, there is an undue amount of effort you can put into it for what they are and the purpose they serve. I do like the paper cap stuffing though. Simple and not too time consuming to preserve the appearance.
@vayabroder7293 жыл бұрын
Great video; what happened with the pilot light that’s not working?
@TheGuitologist3 жыл бұрын
It's working. It's just a dark green that you can't see unless you're looking at it straight on.
@jon7593 жыл бұрын
Brad, in regards to the back door possible "missing piece" I can't help but notice the bottom strip with the 2 screws may in fact be that not missing but relocated piece. Someone moved it to the bottom of the cabinet, maybe? I do enjoy your posts, thank you.
@TheGuitologist3 жыл бұрын
I had not considered that. Wish I'd removed it to see.
@cantyouhearmeknocking19613 жыл бұрын
Possibly to keep tubes or other small items in the back from sliding out the bottom.
@Sparky68M3 жыл бұрын
Billy from Busted Junk studio mentioned you on a video the other day
@TheGuitologist3 жыл бұрын
I saw that. Very kind of him.
@ElQuintoViernesAzul3 жыл бұрын
Hi🙏🏻🍀Gz34str its a safe change without any modificación four 5y3 rect. Tube??
@TonePriest3 жыл бұрын
RCA replacement for the Chinese 12AX7? God approves your choice of electron tube.
@nickdevriese3 жыл бұрын
Nice. Still trying to find a nice 12” speaker for a tweed champ...
@sstorholm3 жыл бұрын
Another interesting thing is also how much those caps dragged the HT/B+ down, a sure indicator that they were leaking. I also personally agree that the fuse should go first, it would be even better having it before the line cord like the Brits do it with their plugs, but first thing inside the amp is the next best thing.
@jpalberthoward9 Жыл бұрын
Have you ever disconnected the negative feedback loop on one of those? It perks it up quite a bit. A 25/25 cap across the cathode of the second stage of the 12AX7 will also liven things up. I know you can't do that on a customer's amp, but if the opportunity to experiment ever presents itself, give those two mods a try some time. You'll be pleasantly surprised. Perhaps on a home made clone.
@TheGuitologist Жыл бұрын
Set loose on one, I could conjure a monster of such devastation, the world would weep with joy and fear.
@jpalberthoward9 Жыл бұрын
@@TheGuitologist My next one is gonna have a wooden desk drawer for a cabinet, (solid pine, finger jointed corners, curved steel handle, and 1/4 in. Plywood baffle.) A cake pan for a chassis, more 1/4in. Plywood for a turret board and no. 18 finishing nails for turrets. My Grandpa built a radio this way during the depression in the 30s. He still had it when I was a kid, and it still worked. It was probably 35-40 years old at that time. He said he built several of these for his neighbors and he would barter them for corn, eggs, chickens, potatoes, etc. It was one more way for creative, resourceful people to get through hard times. My motivation is to make one for a buddy who is always pawning, (and losing) his gear. No pawn shop will take a home made put together job, so he'll be stuck with it, and he'll always have an amp. Most old solid wood desk drawers are little resonant chambers like an acoustic guitar body. Try saying "hello" into one. You'll see what I mean.
@An2oine Жыл бұрын
Is the white wire the hot or the black to the fuse?
@Pilotltd3 жыл бұрын
Replacement handles are available?
@WillyMcCoy503 жыл бұрын
Could also print a peel 'n' stick Astron label.
@sweettoof90023 жыл бұрын
I would love to hear an a/b of that Chinese tube with an old USA one.