Gains & Setbacks with the '73 Champ | Some Nasties Like to Hide

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[@Ed99924]

I don't think I've ever heard a Champ sound so 'big'...nice job !

[@MrPhotomiked]

talking about music is like dancing to architecture…! Say no more, nothing more is needed

[@paulm9670]

Thank you for posting the long saga you've had with this Champ. I've done quite a bit of work on my own 1974 VibroChamp (caps, tubes, speaker, cleaning, etc.). Unfortunately, I instantly recognized that flubby, wooly distortion you got when you turned it up. Mine even has the same microphonics with certain bass notes. I look forward to making the changes you made in the "Gremlins Gone" video, and also those in some of the comments to this video. As a long time engineer new to tube amps, I appreciate your slow and thoughtful approach.

[@lloydwilliams5649]

Another great job. And a Zappa quote! Thank you.

[@DROPTUNED]

Thanks for your wisdom! Keep it going forward... massive congratulations for your work. Psionic will be huge. We are watching your channel from Europe.

[@cgavin1]

Had the same thing with a 73 twin recently. Treble cap had become insanely microphonic (more than usual) and "woolly" sounding. Changing that cap was a necessity. I also changed the phase inverter coupling cap and found that had a huge impact on the amp's overall treble response. Tried all sorts of caps, same value but different dielectrics. Mustards, mallories etc. All sounded wildly different. I mean enough that 2-3 other people were able to say "yes it absolutely does". Surprised me..

[@judgegroovyman]

5:45 lovely chords and playing. Great sounding amp now too. Thanks!

[@danielmargolis3210]

I have an older Weber 8” with a large magnet in my 1965 VibroChamp. For an 8” it sounds great, especially with humbuckers.

[@rjschmirler3794]

Love it brother.. Cheers

[@scottwilcox6313]

Congrats on the 6k mark. Pretty soon 100k keep it up 👏 Someday you might get that shop you been thinking about.

[@cvdevol]

"The riff" 😂

[@danielhelderman5228]

Im pretty sure i only understand about 3% of what is said but i sure do love watching lol

[@fullwaverecked]

Excellent video. Furry is more conducive to a rodent urinating in your amp than great tones coming out of it. Cheers from Utah!

[@glenndavis6793]

Such a genius

[@glenndavis6793]

It blows my mind you improve old school it sounds so good on this end Beautiful

[@russellhltn1396]

Sure would like to know what's causing that. If I was in your shoes, I'd think about adding something like a bass shaker to your work bench to find vibration problems.

[@halhawkins7641]

next---work on Nighthawk's Champ!

[@zbaby82]

That's a nice solid sounding strat. Is it an American model?

[@dembydish]

Is there an easy way to determine the foil side of the 3 tone resistors?

[@leiferickson3183]

Champs are the hardest amps to improve without big changes. At least that is my experiance.

[@leiferickson3183]

Who Thumbed Down? Free real experiances here.

[@matthewf1979]

Class 2 ceramic caps are shit on paper, just like the ceramic caps found in old amps. That’s why I use them in amps and it does matter. If it were a piece of test equipment(tube tester, HV cap tester, scope etc) I would use class 1 ceramic, silver mica or polypropylene.

[@jimcastillo8950]

Hello, , does a champ with bass and treble load down the signal more as opposed to the just a tone knob on the earlier champs(tweed) Thank you .................

[@PsionicAudio]

Yes, a tonestack has what we call insertion loss.