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soddering iron, snozzoramus!

Just got blown away listening to Lemmy playing bass with Hawkwind and looked up his amp preferences - the Super Bass was there and I could also find the schematics. Your walk through of the circuit and explanations were excellent and there is always time for The Who!

awesome tone

Great video..I have three H&H amps 2 are valve sound and one PA amp..One of the valve sound amps has a very low volume. what can cause this ? any help would be great..regards.

i could be wrong -BUT - the mentality at artist seems to be - keep the PROFIT down -but high turnover .....or maybe its just 3 rd world exploitation !! LOL ......but i love what artist have been offering - in the late 70s and 80s ......even crap was expensive.... so many options it allows you to try other types of guitars and instruments - love artist AND....they are very professional too

Why would you use a Weber speaker instead of a Jensen P8R? I have done a lot of testing and I have never found a Weber that sounds better than the Jensen RI. I am curious.

I have the bassbreaker 30r.is the circuitthe same.I have 2 tubes of the four red plating

The tone of your voice said it all but when you showed the camera, it turned Into a proper horror show. I’ve heard this practice referred to as “shotgunning” an amp.

In the early 80s we went to rehearse in the basement of a HH "shop" in Holloway Road, London.... it was so damp down there, it was hard to breathe, we left after about an hour 😂

Harsh criticism of one of the most significant amps in the history of electric guitar. Who last touched that amp? Clearly, parts have been changed. A thoughtful technician may have asked the owner if he wanted the "tacky graffiti" removed from the chassis...considering those markings were left by the founder of Mesa Boogie, Randall Smith. I'm curious how much the removal of the factory markings devalued the amplifier.

I just scored a sweet 68 Princeton. It literally just arrived here in Detroit Michigan from Nashville Tennessee Thanks for sharing this video sir. I've no doubt I'll be referring back to it soon enough. Fender Amps are the best!!!

Demo it with a multy effect board. The way to sell is make the product sound the best it can sound with very good playing just as a thumbs up

That trem sounds bloody beauty bonza, mate!

Wow, now that is what I call a amazing sounding amp !!! Brilliant work Chris 👏👏👏👏

It is weird how stupid some guys are about the parts in their amp. The caps are 50 YEARS Old...... if bot now, when..??? And..... if he replaces ONE, your amp is no longer "Original"..... so why not replace the rest of them. There is NO Magic in parts. They are there to perform a certain job at a certain voltage. It does not matter if they are Blue or Yellow, Carbon or Metal, Oil or Plastic. This amp does NOT sound "original" with 50 year old Elytics. But it WILL sound original with new filter caps

I'm very reliant on visual learning and your presentation helped me a lot. It is difficult to navigate through the jargons sometimes as an aurally challenged person.

Thanks for a great posting ! It is amazing how people will fix what is not broken with strange mods instead of just buying a pedal and building a pedal board. Every single Marshall is different, and sometimes Hi Watts take pedals better than Marshalls. This tech is a real pro.

Hello! great video! I am about to get a bassbreaker 15 in a trade and was just looking up serviceability. I'm no tech, but I am curious and like to get my hands dirty (without getting electrocuted) :) . Out of curiosity, did you completely remove the diodes? or literally just clip one leg and leave it in there? Is simply clipping them ok? or should I consider removing them with the iron? Thanks! Awesome content!

Fab videoo Chris..What a master tech you are..🙂 Just learn so much and your attention to detail is great..Thanks for sharing😊, and it sounds perfect..Great playing by the way..Ed..uk..Stay safe man..👍( Both mics sound fine, I'm leaning towards the Shure..🙂)

Uncle would say go grab yerself a beeer.

LZIII

Crimes against humanity

RCA. does that mean radio corporation of Australia. Or radio corporation of America. Haha just a little teaser. Chris you are a meticulous repairman tech. On amps. I see you enjoy yourself very much. Between you. Uncle Doug and Terry dayton in Grand Rapids, Mi. Iv seen alot of very good information. Thank you for sharing your knowledge. If any one needs knowledge its alot of young people today. Iv looked up a few things on Utube to repair some things around the house hear. Keep up the good work. Dwight.

I always tell people to look up repair videos before they buy an amp. Fender amps of the last 30 years are truly disgusting. I've even seen a Handwired deluxe reverb that was pitiful. God bless you.for helping that customer out. I can imagine they aren't fun to work on. This thing is just insulting. Damn

G'day Chris. I always fancied a 1 x 6L6CG amp to go with my 1 x 6V6 5F2A tweed Princeton clone so I gave your Tweedtone 12A a go. At that price it was hard not to. I've made some modifications for my own personal taste. I play rootsy blues and country and love vintage Fender tones. Not so keen on blues rock and rock sounds for my own playing. I've never liked closed back cabs, so I converted it to an open back like most old Fenders. Modern Chinese tubes don't do it for me either, so I replaced them with some nice NOS tubes i already had stashed away. Both of these changes were big improvements to my ear (perhaps not to some-one else's) but I still wasn't enjoying the 70/80 speaker. I ended up making a conversion ring for a 10 inch speaker (just because that's what I had available) and it ended up with a McKenzie 10 inch. My 5F2A also has a 10 inch (Eminence alnico blue frame). Now the 12A has more clarity than before and is a much better fit for my personal tastes and music style. I can switch between the 2 amps and I'm just as happy with either. They are subtly different but with the bright switch off and the NFD defeated (my usual settings), they have a similar feel. Of course the 12A is significantly louder, whereas the Princeton can get into power tube overdrive at lower volume. You've done a great job, especially with having to meet Artist's price point. You've clearly got the circuit right.

Good vids, however, it amazes me how many techs call out amp parts like caps and resistors incorrectly. Such as a zero as the letter 'o', ie .oh47... Other than that great job...

So was I right about the power transformer being original..?

Playing devil's advocate here... Is it possible that this amp originally had the older Astrons on the eyelet board? If so, changing them out wouldn't have been as big a deal. Have seen other brownies with those in them, but you've been around a lot longer than I. Thoughts?

What an impressive result for this beautiful amp. I enjoy your soulful playing in the sound sample at the end, too. I always enjoy your playing. I can hear that you make some effort to give us a good quality sample of the amps you repair.

I don't understand the need for 5% grid leak resistors in the power stage. Don't get me wrong, if Leo did that, there must be a good reason, it's just that I can't figure out what that is. I mean, in theory, the grid current is so low that the voltage drop across those resistors should be negligible regardless of their value (within reason, obviously). Am I missing something here?

Liquid Gold and Chocolate.

Some heavy lifting required on this one! Adding adjustable bias to these is tricky with the layout, I ended up making that 10k go acrobatic on the blonde Bassman I had on the channel to fit a trim pot underneath. The transformer bolt is also partially in the way which makes it more difficult. Fun stuff! Haven't seen that hot glue trick before, I'd be curious how that hangs on after some years of loud use and the vibrations that go with it. I bet it'll be fine but those 15" pros put out a lot of bass! czcams.com/video/MxgdCBX__aE/video.html

Absolutely agree that the Brownface era was Leo’s best work while at the original Fender Company. And these two videos are terrific in both instruction as well as entertainment. Thanks for these and your other very well made presentations. I’m a fan and follower.

that tremolo sounds almost like an univibe it is amazing, great job also !

Sounds lovely Chris! You did a great job! I especially like the extra trouble you went to, trying to get the correct bias point at the centre position of the bias pot. This is when ocd can be a good thing! I don't spose you can even get blue Molded caps any more huh? You like the 'sozo's', & I like the look of them too, but how much are they actually? I'm in Straya too mate so AUD is fine! I still can't believe some asshole stole the other blue moldeds! And aren't those orange drops sposed to be pretty good too? - But just visually jarring?

Thanks Chris. Who rewound the transformer? I've got a Traynor YGL Mk.3 that needs the same treatment. The extra stepdown transformer is a hassle.

Great sound, a real players tone.

Phantastic Job , the Amp sounds great. Witch Mike is better ? if I pan to left the Shure is much louder so it sounds better than the Sennheiser, more volume means less resistance, the right channel is to low in output . It seems you hit the sweet spot for the shure on the speaker., not so for the Sennheiser. The sound can improv more if you would search for the sweet spot for the Mike Position , via the noise the Amp makes and some Head phones . Oh and good playing .

I have learned a lot from this video, peoples hearing preferences are unique but the SM57 sounds better to me. I'd to know more about biasing and percentages. Just for clarification ' Great video mate

Hi again Chris. I can purchase orange drop caps at Antique Electronic Supply in Tempe Arizona. But I don't think they have the blue sozo caps. Where can I get them? Dwight.

I wonder Chris wouldn't a two part epoxy like JB weld hold the bias pot in more securely? I don't know if they have JB weld in Sidney in a hardware store. It comes in quick cure or one hour cure both types finish curing in 24hours at 21 degs. C or 72 degs. F Room temp. What do you think?

That sounded marvellous.

sounds great! While it's not like the real thing, I have an MXR tremolo pedal that offers six different modes including harmonic. As per your demo, it can sound almost Univibe-y

Thanks Chris!

Hey Chris. Dwight hear. You say you owned a company involved in music. Please if you don't mind. Tell me more about yourself you seem like a fine man and very well accomplished on electric guitar like you could be a sessions musician or join a professional music band. Good work on the amps. Dwight. AllenPark, michigan usa. Oh Im an old retired machanic dabbled in electronics as a hobby. Played acoustic guitar in church Chior bands I'm also a ham radio operator. Have talked radio to radio skip into Melbourne Australia. Many moons ago. You are such Fabulous people. Enjoyed the chat with someone from the down under.

If I'm going to be watching your vids . hear on utube ay Chris I hope you dont mind if I put a spot of Brandy in my cup of coffee.

I applaud your work on this amp, Chris. It's so disheartening to see classic vintage pieces like this defiled.

Wafty tremolo, like my Goldentone

Who steals all the guts out of a classic amplifier and replaces them with cheap junk? 🤦‍♂️😵

There’s a ‘68 Super reverb on eBay right now that the same thing must have happened, all Mojo Dijon caps and some orange drops. I asked if they happened to have the original caps and was told it happened prior to his ownership. So sad to see this. The solder job is pretty crap too on it which shows the type of person that worked on it.