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In Reply to: RE: Bang for the Buck posted by Triode_Kingdom on July 10, 2016 at 14:27:22
I think cost is always a factor. No doubt you can get a good soilid state amp but can it be done at a cheaper price if wattage isn't a factor?
I have a 6V6 triode strapped amp tha6t I consider very good for the money. The OPT's are hammond 10K's. The voltage gain stage is a 6cg7 direct coupled to a 6cg7 split load invertor. It is very cheap and simple, yet quite good sounding. However it is only good for about two watts in strict class A1.
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I have a 6V6 triode strapped amp tha6t I consider very good for the money. The OPT's are hammond 10K's. The voltage gain stage is a 6cg7 direct coupled to a 6cg7 split load invertor. It is very cheap and simple, yet quite good sounding. However it is only good for about two watts in strict class A1.
What you have is a typical wide bandwidth,low distortion Williamson circuit..My favorite is the Heath W5m with the 16309 nickel centered Peerless outputs which are 11.9k going into a pair of KT66s or 6L6GCs.
Russ,why not hook your G2s up to a regulated source and I think you will like it and you'll have more power?
"For every complex problem there is an answer that is clear, simple, and wrong" H. L. Mencken
EL84/6Pi14's on a 16309 would do very well. Front end of EF184 pentodes, as LTP and E-Linear rigged to the '309's screen taps. Leave the finals as pentodes, with g2 voltage equal to plate voltage. That will make a very fine 10W amp, and be Class A...which leaves the trouble of creating a PS a trivial exercise...:)
Bypass the EF184 g2 node to the cathode, and drop them to around 1/3 of B+. Plate loads for the '184 of around 47k so current to the LTP cathodes is kept out of the 'Needs Heat Sink' regime for their CCS.
Fixed bias on the finals, and use that same supply for the CCS negative rail. A supply of -25V should be more than adequate.
cheers,
Douglas
Friend, I would not hurt thee for the world...but thou art standing where I am about to shoot.
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