Comments on: Add Vibrato (?) To Any Tube Amp! (1962)

By: victory

victory — Tue, 10 Jun 2014 14:42:37 +0000

In reply to victory. sorry, in fact I meant pin three of course :)

By: victory

victory — Tue, 10 Jun 2014 14:41:33 +0000

Hi!

I like these schemes because of their simplicity. I have recently built an SE 5 watt amplifier and I am deciding if I put in some tremolo circuit. Can you please tell me where I want to feed this circuit? Am I supposed to wire the output from preamp 12AX7 into the grid of this circuit tube? (pin no.2?). Also is it better to put it in front of EQ or behind it? I am asking because my amp has the corrections after signal amplification.
Also what values of B+ do I need? I think I have something above 200 VDC on my source. Thanks a lot for your input. Any answer will be appreciated as I really need to find something simple.

By: chris

chris — Sun, 21 Apr 2013 14:10:10 +0000

In reply to Garrison.

Agree with all that

I spent years ‘salvaging’ foil caps and resistors from old equipment. Its not worth it. Transformers are worth saving tho. So long as they are relatively rust free.

By: Garrison

Garrison — Sun, 21 Apr 2013 03:48:39 +0000

If you want to build a guitar amp but have little experience cloning a Fender is far and away the best place to start. You have readily available schematics, but also the parts layout and widely available transformers and every other part. Building electronics is actually 90% mechanical.

You will need the right tools and test equipment. You will also be way ahead to buy the correct parts new. Too many people try to build stuff out of stripped junk and wonder why it blows up in two weeks.

By: chris

chris — Thu, 18 Apr 2013 21:35:11 +0000

In reply to johnny.

Hi Johny. Regarding the schem om the right: there are no component values listed because that diagram is intended to represent a ‘Generic’ triode amplification stage; I.E., the trem circuit described will work in ANY amplification stage with that general architecture.

Regarding your second question: neither this post, nor anything on this website, is intended as basic instruction in building amplifiers; this is more’by-techs-for-techs’ content if you catch my drift. If you wanna learn the basics, I highly recommend you pick up “The Tube Amp Book” by Aspen Pittman or Jack Darr’s “electric guitar amplifier handbook.” Either one of those can get you started. Good luck! c.

By: johnny

johnny — Thu, 18 Apr 2013 21:13:59 +0000

What values of components did you use for the single-channel amp stage?
Also how can you design an amplifier using the schematic listed

By: Mateusz

Mateusz — Thu, 04 Apr 2013 15:00:54 +0000

I have 6av6 in my 50′ amp.

By: Bafflegab

Bafflegab — Tue, 31 Jul 2012 16:34:30 +0000

“Q. You like Champs.

A. Yes, I like Champs a lot. Can’t go wrong there. “

http://leftyshefty.blogspot.com/2012/07/interview-with-amp-nazi.html

By: Lee Harris

Lee Harris — Mon, 30 Jul 2012 00:25:13 +0000

6C4