Tube Amps / Music Electronics
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|previous: Joseph Futral This is my first foray into an amp ... -- 10/10/2000 6:59 PM||View Thread|
|10/10/2000 9:52 PM|
|Scott Swartz||Re: Looking for feedback|
The split load phase inverter you are using should drop 25-30% of B+ across each resistor (47K on your schem). Try increasing them to maybe 68K for a higher drive voltage.
Looks pretty standard to me, but the cap should be rated 100VDC.
More capacitance gives a little tigher bass, I prefer about the range shown on your schem
Lower B+ will distort easier if thats what you are looking for.
For a Full wave rectifier you can put a 50W zener in the CT lead and drop some voltage, not sure if you can do this with a bridge, I'd have to think about it, or maybe someone else knows how.
You are running the SV6L6GCs at 23 watts dissipation, which may be a little hot.
[QUOTE]5.Any other thoughts? Feel free to email me
directly if you prefer[/QUOTE]
If you want more distortion, you could cascade the preamp stages, use master volume, switch stages in and out, and use a DPDT to switch between the two tone stacks for the Fender/Marshall EQ changes, etc.
Or maybe this
Gain(first stage from Fender preamp)
Cathode follower+Tone Stack
A switch or relay would select the Fener or Marshall path
Check out Boogie or late Marshall schems, you'll see similar approaches