What is the most basic 12ax7 tube pre-amp circuit for Bass Guitar one can make? I've been studying the alembic f2b and f1x also been looking at the frog Pre amplifier pedal pcbs as well as the tomato single bottle Pre amplifier kit and PS From DIY-tubes .com but if any of yo experienced dudes out there would. Be willing. To draw up a simple wiring diagram.of a simple but good Pre amplifier that could be used for bass guitar and put into a power amp... And also the power supply diagram with transformer voltage and VA. I know this is a lot to ask but I think there are a lot out there like me who are wanting to do something like this but lack a decent how to. If you could work something up for
Me or at the very least some good. Advice or some kits of the like I haven't listed please do so thanks
Me or at the very least some good. Advice or some kits of the like I haven't listed please do so thanks
There is a book you want to take a look at: https://www.amazon.com/Designing-Tu...ocphy=9032419&hvtargid=pla-465623670925&psc=1
The author's website: The Valve Wizard
The author's website: The Valve Wizard
Last edited:
The Alembic is pretty basic. So is the Ampeg B15. Would be interesting with a mosfet follower after the tone controls. What are your capabilities in building this? Have you any electronic experience?
Hmmm. Don't know that a MOSFET follower would sound better in that position for bass guitar. You tried it already?
> Don't know that a MOSFET follower would sound better in that position for bass guitar.
The impedance at the EXT AMP jack is much too high to happily feed modern power amps or studio inputs, even cables. It "needs" impedance transformation. Certainly with 300V supply and 1V signals, a FET buffer "can" be quite transparent. But if you need "glow", throw a bottle in it.
The impedance at the EXT AMP jack is much too high to happily feed modern power amps or studio inputs, even cables. It "needs" impedance transformation. Certainly with 300V supply and 1V signals, a FET buffer "can" be quite transparent. But if you need "glow", throw a bottle in it.
Well thank you for answering, I do have a limited electronics experience I've build many Vero board pedals and a tube cricket from scratch etched some boards and made chip amps but nothing with tubes I was going to try the mooseapotomus f1x or the frog Pcb but I feel like it might be easier and cheaper to just follow someones very basic outline on say turret board or eyelet board that is if I could find some one to draw up a layout diagram with a few tips on what to look out for ect. I just want a very basic one or two bottle 12ax7 or 12au7 type Pre amplifier to dip my toes. Ive read up on safety and dangers of he but do d myself stuck. Thank you for listening
