Secrets of the Vox AC50 - BUSTED BEATLES AMP Repair!

This is a 1965 Large Box Vox AC-50 (Mark 3 OS/072). It was sent to me for repair. (No sound.) These AC-50 amps were used by a host of bands, mainly from the British Invasion, including The Beatles, the Rolling Stones, The Kinks, The Animals, Herman's Hermits, etc. We'll open this one up and examine it thoroughly, change the original electrolytic caps, change the output tubes and bias. And finally, we'll demo it with a Telecaster. Sources: voxac50.org.uk/
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[@TheGuitologist]

Thanks to Zak for his follow-up video when he got the amp back! Check it out! kzbin.info/www/bejne/gpmrZJR6pa6Irck

[@Tomcaatt]

The Guitologist I used to love playing a freinds who had a little shop down on Madison , “mikes music “up from strings and things at the time if your farmiliar with Memphis but ,the ac50 has the most incredible brown sag even slower than the 30 , I have one a freind builtand probly closer to 35 Watts with a dual tube rec that sounds quite close and am proud to own and play and know the builder , the pawn shops won’t lend money on them ( Robt Henson built amp w no name ) and this has enabled me to keep them through the years.

[@HiHello-ku1fl]

Man that AC50 sounds pretty raunchy but it's cool....definitely hear the Beatles tones in it. They must have used them a lot even for recording from the sounds of this amp. I know they used AC30's too but I think they used them briefly then moved to these. Not sure.

[@bobbystereo936]

@@HiHello-ku1fl I believe they started using these around the time of a hard days night? Same amp the kinks & yardbirds used.

[@conbriosynthesizers3428]

The AC50 is the best-sounding VOX amp, in my opinion, followed by the single 12" early AC15. We used to have eight of them at a store I worked at - and no one wanted them. Soon, everyone realized the Beatles used them on that first American tour - you hear them in the amazing Ed Sullivan and Washington concerts. Their best guitar tone ever!

[@mcashnv]

So nice to hear something other than a Fender or Marshall. Nothing else has that Vox sound. Best sounding amp for "rock" music IMO. Highs aren't harsh, bass isn't saggy, balanced mids, just perfect.

[@treetrout3987]

At one time if you looked at the interior of ANY electronic product, you'd have seen fuses. Everything was tubed. And Great. I had a tube amp in the 70's and performed the very same test. The amp down a flight of stairs in my house. It's my opinion that Playing, not violence caused the amps to fault out, not the tubes, although the tubes blow in the process of playing.

[@JustChiminin]

Daytripper sounded very authentic, good choice for the first demo.

[@TheGuitologist]

I don't usually do covers in the demos, but figured that one was necessary. Had to stick some "Walk Don't Run" in there too.

[@caseysmith544]

@@TheGuitologist As well as a Stones lick or two.

[@FBGOODIE]

Indeed, great!

[@Dragonblaster1]

@@TheGuitologist "Walk Don't Run" was recorded using a Jazzmaster through a Fender Twin.

[@mantas68]

I can't believe how much gain this amp has! Marshall didn't catch up to this amount of gain until about the mid to late 1970's! It's nice and smooth gain too. I bet this is a very loud amp too. And the component placement and lead dress look sweet. I WANT ONE!!!

[@ianr02]

This man really knows his stuff. Very informative background history on the various components examined. I wish I had this sort of knowledge...

[@OFR]

Having played virtually EVERY model of VOX - and many of each model, I can say that I think the AC50 is the gem of the bunch. They are rare now, but used to be unwanted and always for sale cheaply. The AC50 cabinet is also the best-sounding guitar cabinet I've ever found. Incredible combination - and now so rare. The Beatles on Ed Sullivan (and Washington DC concert) is all AC50 amps for guitars.

[@screamingpirhana]

I have a later AC50 and love it. But too HEAVY for standard club gigging. If I ever do major tours, it would be in, but it's too easy to wreck them, and the tolex is like old lady skin, what a terrible choice that was. But it's great.

[@josephroth8895]

Really enjoyed the tour of one of my favorite amps and until now, I never saw the insides. Great Video. Thanks so much!

[@charlesshaw9090]

Now that’s a cool amp! Quite a few over here, UK. On an AC50 the first two reservoir caps are both 32μF. Also for interest, those dual caps have a higher current capacity on the red and lower on the yellow. If used as the first HT reservoir, then red is always the first used in line and has its ripple current marked on the case. Great playing as always.

[@diggy3746]

I need that amp now. Sounds awesome. Great playing and repairing as always.

[@yaanno]

thanks for making these videos! it is stunning to see how differently these amps been designed and assembled. this one looks like a neat one!

[@mrpbody44]

I got my Vox AC50 in Lexington KY in 1981 and used it for as my main amp for 35 years. Still has the original tubes. I recapped it 20 years ago and now it is time to recap it again. Thanks for the video. So much good info compared to 40 years ago.

[@clmbrr.1316]

Hey, Brad ! I've been watching your YT channel for the last year, and everytime I turn on my PC, one of the first things that I check is to see if you posted a new video ! I just want to say that I've been watching since I've came back to messing around with tube amps, and you've helped me a lot and made interesting for me to come back to it. I've worked at a local workshop in my country for three years straight, building only Fender tweed-era replicas, and I've stopped because I was diagnosed with two herniated discs on my neck and I've switched my main working area. I'm better now, and I'm back to building amps part-time and your channel has been as interesting as ever ! Best wishes, Rafael.

[@davidclark3603]

You're absolutely brilliant at everything! Thanks for the video!

[@Les537]

A legend of an amp! The tone controls on vox work in mysterious ways.

[@BGoldtone]

Brad..I appreciate the work you do. You're an inspiration! From an old 65 year old enthusiast guitar player and inadequate repair guy.

[@bluesingmusic3443]

I grew up in OKC. When I was about 12 or so, our next door neighbor, who was USAF(I think, could be wrong), he was always playing a Vox guitar through a Vox amp.(AC 30 maybe. Didn't keep up with amps guitars etc back then. I got a TG&Y guitar for my 7th birthday (put Mom in the hole $5). But I do remember how clean that guitar sounded. He played a lot of Johnny Cash, etc. BTW I had to play C&W if I wanted to practice in the house.(Dad's orders!). Speaking of which I've played 50 yrs & think you're an outstanding guitarist.(I don't pass around compliments btw). Love your videos.

[@1Dougloid]

This is an oldie but I've got almost the same amp on the bench here and your video was very helpful. I know we don't agree on much but the images were exactly what I needed as a confidence check.

[@jasonlamoureux7578]

So intriguing to see how this amp was put together versus something American or Canadian... very cool indeed. Thanks man..

[@jaixzz]

Thanks for your enthusiasm - my (mid1960s) Vox AC50 was originally equipped with a pair of columns (each containing x4 10" JMI speakers) - a mid-60s PA head not an instrument amp head. The only Vox guitar amp combo I had was an AC60 mounted on its speaker cabinet. Happy to share.

[@martinreid1740]

Thanks for another great video,takes me back to my first decent amp an early sixties AC 30. I played a strat through a WEM copycat(tape echo) into the vox for that Shadows sound,I wish I'd kept that amp!

[@mrhat6098]

I never owned a Vox but I was always very impressed with their construction. Solid.

[@The31262]

Same mods that I would have done to that amp. I'm on Louisville too (active musician) and have to do repairs/mods on my amps. Been in electronic field since 1976. Love bringing this stuff back to life!

[@podrum7421]

Oh my! Finally the VOX amp! Love the video

[@rednoise0]

I've heard lots of AC-30s and AC-15s, but hardly any AC-50s. I like the way this amp sounds very much. Ya done it good!

[@jonathanhorne6503]

I’ve watched this a few times. Mine was sold to me as working, but….. it’s a Mkii which has a GZ34 rectifier and no kathode resistors. In its past it had power supply failure. Power tx replaced with the correct Haddon, the GZ socket had scraped clean carbon tracks and other poorly replaced wires and components. My house voltage is 122VAC which put about 570vdc on the 550 volt caps. I built up a couple of 700 volt caps. Good to go. The amp is sounding great. I have NOS EI EL34 and all euro 12A_7 tubes. I expect my repairs will outlast me. It scared me when I saw the condition when I first opened it up. I’m glad this is a hobby, it’s taken me over 40 hours to make it reliable.

[@BadChizzle]

More Vox please. Vox Groovy! Thank you! You know... I mean, keep an eye out for opportunities, if you can. I realize you get what comes in... Wow... in my opinion, this amp was engineered very very well. I’m so happy to see inside this thing. Thank you!

[@Hungry_Hunter]

I fixed one very similar in the late 90's it broke my heart giving it back to the owner. Had same cap and worn anode resistors. Great toneful amps.

[@instructormaint8423]

One of the best amps I have heard on your bench. I love that sound. That amp is a keeper

[@TheGuitologist]

Cool, mang. Glad you enjoyed it!

[@jackallen6261]

Oh yes! Walk don't run on a tele through a VOX, very cool, now with a little (a lot!) of reverb. Fantastic sounding amp and amazing guitar work! Thanks.

[@philipthomas8440]

Just got back from shoulder surgery so no playing guitar for me. But I am feeling no pain and what better time to watch you and uncle Doug and digging on those happening tones! Aah yes,life is good! Great video.

[@TheGuitologist]

Hoping you have a speedy recovery, Philip.

[@johnthrelfall5]

Nice historic photographs views of AC50s in action plus great views of the amp plus good repair job! Between your playing and the owner's playing in the follow up video , a good listen to the AC50. The best hint I got from the repair was the new flexible output leads , and the setting of the variable grid bias pre-set resistors was interesting.

[@ahobimo732]

I have a "newish" Vox AC15 amp (my guess is 5 yrs old max) and I absolutely LOVE it. I pulled the back off and was delighted to find that there is NOTHING inside of it that can't be fixed/replaced with a soldering iron. All the circuit board components are throughhole mounted. I don't know if all the major tube amp manufacturers still make them this way, but I think it's bloody fantastic. At least there is one thing being made today that isnt disposable junk.

[@chokkan7]

Awesome job (as we've come to expect), Brad. It was a real treat to look inside a working amp of this type: hope you had as much fun doing the actual work. Back in the '90s, I had to spend several months working on assignment in the Czech Republic; it was not long after the Velvet Revolution. I knew no Czech, but I kept asking those who knew a bit of English about Tesla. Finally, one day, they piled me into a Skoda (wish I could have brought one home) and we drove off into the country, and I was treated to a very limited tour of what I was told was the Tesla tube factory. I wasn't allowed to take any pictures, but at the end, they let me buy all the tubes I could carry (for about $2 a pop), and I still have a pretty good stash of lead crystal EL34s at home...should last until I croak...

[@TheGuitologist]

Awesome story! I'd love to go on that tour.

[@Anson120]

It was made to be serviced and used. Vox is not a museum. They sound so good.

[@Medicated1]

It's snowing in my end of Canada... enjoying the same coffee beverage and watching Brad.. great way to start the day

[@TheGuitologist]

Glad to have my Canuck friends along. Either y'all are real badasses up there, or you just have really warm women to cozy up to.

[@Medicated1]

the latter... if not, I would have been dead in a snowbank years ago Brad!

[@mjallenuk]

Fascinating ... I completely understood the guitar playing bit at the end. The rest was an interesting blur of mostly the removal of 'Made in UK' components...

[@andrewallen9993]

Matt Allen That have worked for more than half a century!

[@russpbg]

That might be the best sounding amp I've heard on this channel!

[@TheGuitologist]

Cool man, glad you enjoyed it!

[@WessStewart]

Hell, it could be the best sounding amp I've heard on ANY channel!

[@dharleyfan1]

Loved the playing at the end. I have a Butterscotch Blonde G&L ASAT, that I put a black pearl, 3 ply guard on, just like yours. I also loved RCA the banner hanging behind you, I worked at the RCA picture tube plant in Marion IN. for 16 years, until it closed and moved to Mexico (screw NAFTA).

[@BoboButYouCanCallMeTom]

I fell in love with vox amps i just got myself a VOX AC30VR and god it sounds really great! Till now its the best hybrid amp i've ever heard. Great video as always!

[@wingracer1614]

I was never big on Vox until I went over to a friends place. He was a Marshal guy, had a huge ass collection of Marshal heads, combos and cabs but he had just picked up an AC30 for a steal from somewhere and was putting it through its paces. My god that thing sounded amazing in person.

[@BoboButYouCanCallMeTom]

wingracer 16 same with me, the only reason i bought the vox is because i wanted a new amp and then suddenly I saw it for 185 euro's and instantly fell in love. I was gonna go with a jet city 50 watt full tube and a 2 x12 cab but that was way more expensive probably would have gotton me closer to a stoner rock sound but this vox is pretty versatile to!

[@GlennMarshallRocks]

Man, that is one sweet sounding amp....! Wow...! None of the Vox's I ever tried sounded as good as this one...

[@johnnyb3987]

That sounds surprisingly good! Love the way it breaks up on the hi channel. I mean, wow.

[@fiddlix]

By the way, Great job on Day Tripper. I’m the guy who use to play with Jerry Reed that is buying Proto.#1 from Tony Dorris of Volition Amps.

[@seankerrigan1627]

Cool bro, I'm just getting back into this stuff, after a hiatus of about 15 odd years, and though the 'surrounds' (I'm in New Zealand and tend to have to build from scratch) the outlook tends to be similar... appreciating your sharing Dude!

[@edfrench6503]

Brad, I love your channel and your playing. Your demo of the Telectro reel to reel mod has tons of tone, which speaks both to your playing and your tech skills 👍👍🤟🤟

[@TheGuitologist]

Thanks Brian.

[@budandbean1]

Thanks a lot for this video Brad, first time I’ve seen the insides of a VOX and it’s really a cool amplifier. Also seems like it’s build really well too. Your explanations also were really informative. I love it when I learn stuff during your videos. The diode board was interesting to see and it was also interesting to see your oddball capacitor values. I’m glad you set and figured out the bias where everyone could see it, that was really great. Damn, it sounded amazing too! You totally rock.

[@TheGuitologist]

Thanks for watching, as always, Buddy. Good to see you.

[@bobbystereo936]

@@TheGuitologist Brad! Anyway you could do a tutorial on how to switch the ohm selector on one of these babies?

[@davidclark3603]

Great video. You’re very good with these amps. What a fantastic amp that. Very interesting all round. Thanks!

[@Moka8]

I was just thinking recently about how I don't think I've seen any Vox amps on your channel. Good to see one!

[@TheGuitologist]

Thanks for watching, Cody.

[@Stefan-]

As a huge Beatles fan its cool to see these old amps. I had an old solid state Vox supreme head 25 years ago, it wasnt in the best condition electronically although it looked in pretty good shape from the outside. That amp was noisy (hiss) as hell due to some problem that i couldnt find out at the time since i didnt have the knowledge then, it still sounded good for bass which i used it for in spite of that and i used it for a few years and later sold it. I think i remember seeing The Beatles using the supremes as well in pictures or videos.

[@wadehicks9270]

Those Vox amps are great sounding I like that one.

[@pedroleal7118]

I had the same one...! Exchanged it for an 100w 'Acoustic' combo, in 1999 (the wooden model, 164 (?). Stil have it and is my favorite amp ever.

[@Ibaneddie76]

You aren't kidding about this being a Beatle amp, Day tripper sounded like a guitar studio track. Great repair video, you know your stuff.

[@peterbustin8604]

Im up at 3am watching your vids again ! Im an addict ! Thanks for such compulsive viewing.....

[@joefordish]

really like the way you did that advertisement. having it short and in the beginning means I'll actually watch it. I'm happy to click "skip" on those long winded ads at the end of other channels. but one of my favorite things about your channel is the honesty. seen you tear into shoddy craftsmanship and trust your judgement. make sure you're not ruining your reputation by being a spokesperson for bullshit!

[@TheGuitologist]

Thanks dude. That comment really means a lot. I am trying really hard to balance being professional and yet loose, and yet having the channel help me make ends meet all at the same time. I don't always get it right, but I've never been accused of being perfect.

[@GtrMan863]

I always thought the Beatles use ac30, I didn't even know there was a 50 watt. This channel rocks and should be on TV.

[@J__C__]

Just watched a vid from Rhett Shull where he played in London at an event using an AC30 cranked up to 10 almost. He was pretty impressed by it, from what I saw.

[@gettin_while_growin1512]

That amp and you playing the Beatles on it.It sounded just like them. Your a good player (The Guitologist)

[@BillyJoefromMtVernonMo]

i love those old vox amps and time period, i have a picture of Paul Revere and the raiders standing on top of there vox stacks in concert

[@Gretsch6122]

That’s a great sounding amp! Nice work

[@thomasburnett4712]

The first tube amp I built from scratch in 2003 was a Vox Cambridge Reverb (US Thomas Organ era design) clone and I researched the Internet for 9 months before I built it. One of the things I discovered about Vox tube amplifiers is that their tone stacks are widely known to be interactive and players learn to exploit that characteristic deliberately. I really appreciate your KZbin channel and want to thank you for this particular video featuring a Vox design.

[@TheGuitologist]

Thanks Thomas. Did you video your exploits? I'd like to see that.

[@thomasburnett4712]

The Guitologist Sorry, no I didn't. I did document with photos and drawings but it was my first time and I've learned a lot more since then.

[@thomasburnett4712]

The Guitologist I should mention that it all worked the first time I fired it up including the reverb and tremolo.

[@marccarter1350]

As a Vox fan boy, loving this soooo much!

[@syfman6]

Hi Brad. Fantastic video. Thank you! 💚🎸

[@jopestv1063]

great vid! My friend is an ace amp designer (Alanis Morrissette's guitarist uses one of his amps) and does a killer mod for new Vox's that'll make them sound just the ones from the 60's. His name: Kurt Calder. BTW thanx for the Ventures....now I feel justified...you play it like I learned it...from the "Golden Greats" LP.

[@TheGuitologist]

Two versions. The one on Golden Greats is the '64 version.

[@1991stratplus]

That death cap was cracked pretty bad, that's kind of scary. Nice Amp that is one powefull Vox and it sounds great. Nice video Brad.

[@alecjahn]

I'm happy you went with that socket "fix" (spacers, other side of the chassis).

[@barrychristiansen4579]

another beutiful job Brad! that would be cool to own one. but there are so many as you pointed out here on our side of the pond. Bravo!

[@matejbludsky8410]

i like the idea of an advertisement at the beginning rather than sending products for review.. even though i know you are to be trusted with this.. still can't shake off the feeling, that if you get something for free.. you are biased, at least i would be.

[@westelaudio943]

2:50 That's the magic smoke effect switch, great for every stage show ;)

[@dazarp]

Great work... Sounds amazing.

[@fireantsarestrange]

The AC-50 is a kickass amp. Had one. oh i forgot that I had the combo head and yea it did shock me a few times and it also did sorta have that same problem on brilliant channel.

[@ctcards2636]

Thanks for the video on this, id like to learn a bit more on repairing some of the older Vox amps. I occasionally mod the newer AC15's and 30's a bit, but my knowledge of repairing the vintage models is zilch. So i appreciate videos like this. :-)

[@ctcards2636]

Nice Tesla tubes that were in that amp

[@Lordbaccus]

I really like these videos where you fix an old amp

[@julianmetcalfe1070]

nice to see one again ,i had one ran in through 2 original Blue vox speakers think they were Alnico sounded great never broke down,solid Amp loved it, the Ac30s used to go up in flames some times they always sounded amazing just before they burst into flames sadly,should have had them serviced before playing vintage amps

[@TonySkiens]

as always, your attack and vibrato add to the overall sense of the amp's sound ;-)

[@TheGuitologist]

Thanks, Tony!

[@ntxmt]

Great video. Great results. I like what you've come up with using real modern day parts. No tone hype or magic parts stupidity.

[@ollieoneill5961]

I had one . sold it 3 years back . sorry day . but its still being played in Ireland . with a Goodman's speaker cab. . nice work bud

[@vmat1000]

Another nice vid, Brad. Loved The Ventures bit at the end.

[@icenesiswayons9962]

I see a Weller is it a wc-100 or wc250 soldering iron, dude you totally know what your are doing good to see. I've been servicing electronics for close to 20 years and it's a buzz to see a counter part a work! There are less than fewer techs that know this type of diagnostics and repair.

[@andymacdonald6093]

Another great vid. Cheers Brad! From Liverpool UK.

[@TheGuitologist]

Thanks, Andy. Cheers up north!

[@Cruiseangel72]

Wow another great amp...the Vox! I must've been 3 when they came out

[@rajjar52]

At the Washington Coliseum show, Paul was playing through an AC100.

[@Tonetwisters]

IIRC ... Paul was the first to get a 100, as his transistor T60 was blowing ...

[@vintageguitarsberlin]

nice to see a classic VOX on your channel!

[@metamaggot]

That's a very neat way to put the components

[@seansweeney3532]

I played through one of these for a few years... and MY GOD was it loud for a 50 watt... and didn't want to overdrive much on its own... likely that's why Paul played bass out of them first, and also the Vox organ used one... Paul had a custom AC100 built and that one was legendary for its rumble! I couldn't seem to get past the glassy quality on the bright channel using original Celestion 30s as a pair... it was almost hifi, with almost no rolloff up to at least 8k... and the normal channel was too bland... so I got my 1968 ac30 top boost with the rare Silverback celestion 15w ceramic speakers. And honestly, that was about the perfect amp! the 15 watt bulldogs were great, but very mild on the bottom end. there ceramic 15's offered that 60hz RES FREQ with a lot of huff... so that grill cloth was always blurry in photos... because it was loose nearly always on original ac30's... and flapping like crazy! if you ever see a JMI AC30 with the silver frame 15 ceramics, or any good efficient 15w like that, it makes a huge difference. the chunk of early Marshall's in full effect.

[@mikec.4909]

Great video! Sounds great to me!

[@Five0Music]

Thanks for the video. I’ve developed a love for the Vox sound over the years, and recognize it as among the three most recognizable amp sounds. The voltage selector was made in a time, unlike the present, where people were expected to know how to use controls. Seems out of place now, doesn’t it? Mine has that, and I’ve never considered it a danger or problem, and have never inadvertently moved the setting. I always wanted to try an AC50, but my AC30TB is much louder than I have a use for so I’ll probably never actually buy one. Thanks for the tour and demo!

[@justinbouchard]

Great editing dude. Loved the intro. Also congrats on finding companies to advertise for your show!

[@TheGuitologist]

Thank you! I'm glad to be working with these guys. They reached out to me after seeing my video on the subject.

[@RandyFricke]

That sounds FANTASTIC!

[@elit3darkness]

The diamond material always played tricks with my eyes. My dad had a "Beetle Bottom" with swivel frame when I was growing up.

[@ricoeugene2628]

Thank You!! ..again.. for an useful and informative video. ..from Norway..

[@genekloszewski5484]

great job, good work, and good playing, as usual, hello from connecticut !

[@Burgschall]

Please, when swapping out Double Cans do not replace them with tie-wrapped Nichicons... that’s russion style. F&T makes really reliable double cans which fit and look nice in such a precious Amp!

[@michaelmace924]

I was thinking about that when he did that. I don't know anything about electronics but I do HVAC. We use dual capacitors, that's what we call them, & some guys will install 2 single caps if they don't have the dual cap they need. Also I was wondering if replacing those 2 8 mfd caps with 10 mfd caps would change the sound.

[@charlieb.8441]

Maybe the customer was in a hurry?Like maybe a gig the same night as the vid? Anything more is just second guessin.

[@drawbridge611]

@@charlieb.8441 I think that's right on target. Each customer will have a different set of priorities/requirements. The vast majority of my work is done for people who want the amp (or guitar) to work again and be reliable, and that's the extent of it. They don't care what's inside. Only a small minority care about restoration above and beyond functional repair. Can I do that work? You bet. But it's extra time and extra $$.

[@scgoralski]

Great video, mate. Love the channel - keep it coming!

[@williamsquires3070]

Thanks for playing some vintage Beatles on that vintage amp - it’s been a long time! I just hope you don’t get a copyright strike because of it.

[@TheGuitologist]

Me too. I usually don't do covers for that reason. I don't want a bot flagging my (highly accurate, album perfect) riffage. :D

[@davidclark3603]

Great video, again. Your playing is great!

[@martinwilliamson1776]

12.59 - Jennings Musical Industries , Dartford , Kent - Sure was a busy neighbourhood back in the early sixties ! Great Vid !

[@TheGuitologist]

I think they made their guitars there too for a while. Those things are...interesting, to put it nicely. :D

[@martinwilliamson1776]

Yes they are ! Dartford - also home to Mick & Keith , the Pretty Things , Peter Blake . Clapton , Beck , Wood , Townshend & Page all from close by as well .

[@dougbrowning82]

They once made a combination organ/guitar. Jennings' roots was in organs. They were pioneers in electronic musical instruments, producing the Univox, featured in the Tornadoes' hit "Telestar", and a series of portable Vox solid state combo organs, including the popular Continental.

[@Axess-sv8nq]

3:10 - When I first saw that, I couldn't help but exclaim: "Whoa!!" Holy capacitors, Batman! It looks like a well-stocked bookshelf!

[@davidf8749]

Brad, Your videos need to have a "Mojo" alert. This has it in spades. If only those original tubes could talk! Awesome stuff. :)

[@richardturk7162]

Great video Brad and the Day Tripper riff was dead on.

[@tashpaug]

Brad, you can get the smaller diameter octal sockets from Dynakit parts as the are the same as the Dynaco ST-70 el34 sockets. They are under mount sockets and should work well for you. Just a thought! Btw. Keep up the great videos. I have really enjoyed them and learned much!