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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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In Reply to: Why bother? posted by Dan Banquer on July 20, 2006 at 04:48:37:
It may or may not be obsolete, but it is interesting, if nothing else, in a purely intellectual sense.I did all my first designs with tubes, it was pretty hard to get 100 volts out of a 2N404, after all.
I must admit that 7868's were ooooogly, but they did actually work pretty well, even if they tended to run with the plates glowing cherry red all of the time.
8417's were cool, too, and if you could get an output transformer with both a 4 ohm and a 16 ohm tap, with a bifilar winding, you could very nicely eat a great deal of the tube nonlinearities as well, with some simple cathode connections to the output transformer. Directly, yes, with the 4-ohm tap grounded, not the "ground" tap.
Worked like a charm. Better bandwidth, better distortion characteristics, just put some stress on the driver tubes, but a 6CG7 did fine for that.
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- Well, actually, Dan, it is a quite interesting field... - real_jj 09:48:09 07/27/06 (0)
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