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In Reply to: RE: Is this an optimal PS for my first build? posted by wheezer on June 20, 2012 at 07:56:46
Wheezer,
I think these are the maximum current ratings (which I got from the tube data sheets). The current draw for the 6AV5s is 1.2A each. I'm not going to use the 6FJ7, but use a 6BL7 or 6BX7 instead @ 1.5A. The 6BQ7 draws 0.4A each, so it looks like the total is 7.1A. I do have some seperate filament transformers if I need to use them.This is another person's finished build which they sent me the schematic for and not one that I put together. I'd had an Ideal Innovations 6AV5 amp and really liked the sound of it and since I have several dozen of the 6AV5 tubes I would like to build one of my own. I'll probably breadboard it first, then play around with it until I get it where I like its sound, then put it on a chassis.
Larry D.
Edits: 06/20/12Follow Ups:
Larry
A better choice for the 6FJ7 is the 6SL7.
Just change the plate resistor R11 to 56K.
Also the 6SN7 would be better than the 6BQ7.
Change R27 to 1.5K and R17 to 5.6K.
DanL
Dan,
Thanks for the recommendations. I will try those tubes out when I breadboard the amp section and see (hear) what happens. I'm sure there are lots of things that can be done there and it will be fun to play around with it for a while before I build it onto a chassis.
Larry
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