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In Reply to: RE: Gain Stage for Wurlitzer 6420 6L6 tube amp posted by mr9iron on February 18, 2017 at 15:45:52
What is the voltage output of the device you are attaching to this amp? Reason I ask, is some of these organ units had pre-amps (with tone and volume controls) prior to the main amp. If you have a unit that has more voltage output, maybe the amp will work better.
Guys that resurrect PA and organ amps for guitar amp use sometimes need a pre-amp box that puts out voltage-range output, for the vintage PA or organ amp to work okay.
Just a thought...
Follow Ups:
Fender,
right now since I am "protoyping" the amp I am using my home audio pre-amp Scott 121..I have not measured it's voltage output..but the end goal is for me to have this set up as a guitar amp for my friend. I am not a guitar player so I am not sure sure if the voltage out put is similar to my pre-amp. I was going to have him come over and plug in. I suppose I can measure the output or the spec might be listed for my pre.. and compare to his output.. but yeah you bring up a good point..
Right now I have to crank my pre to 11 o'clock before I get good dynamics and then to 1:00 before I reach full safe volume..
I have 3 of these, I was hoping to give one to my friend for a practice amp, and the other two, use for home audio. I was going to use them as loaners, when I work on other folks amps, or for sale if I need money for a project...
thanks for the input...
J
-Then I doubt you need any additional gain.
This is because you will likely have plenty with whatever will be driving this, and most guitar speakers are really easy to drive!
hey thanks for the input. I am going to bring home a guitar today and pipe it in and see what we get. Very good point on the guitar speaker, he is building the cabinet, and using a very efficient 8 OHM guitar speaker from eminence I believe..
can't wait to try it..
Like some OD pedals. Try it out and see if it helps the amp's gain stage.
will do! if we just had a bit more gain, this thing would rock the house.. I plugged in a guitar straight into the amp tonight and it sounds amazingly pure, the pickups just don't have enough to drive the amp to full potential...it's maybe a 1/3 of the way there...
we might have some pedals at work in the sound room I can try..
J
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