Thread: Big Sub
View Single Post
  #30 (permalink)  
Old October 11th 04, 06:19 AM posted to uk.rec.audio
Stewart Pinkerton
external usenet poster
 
Posts: 3,367
Default Big Sub

On Sun, 10 Oct 2004 18:56:20 +0100, Chris Morriss
wrote:

In message , Stewart
Pinkerton writes


what I said was that I was considering
designing and building a triode amp. I most certainly did *not* say a
single-ended amp, since they're fundamentally incompetent, and my
point was that it should be possible to build a *good* amp, even when
technically challenged by using valves........


I was at the National Vintage Communications Fair at the NEC today. One
chap had a pair of 833 triodes for sale at only £10 each. Now if you
were prepared to have the OPTs made (about 12K primary Z at 200mA dc
should do) and you build the 2kV supply then you could have a stereo SE
triode amp to beat the Japanese monsters.


Which part of 'they're fundamentally incompetent' did you fail to
understand?..................

Also, why would one save a few quid by buying those triodes, when a
pair of suitable wideband output trannies would cost the best part of
a grand? That's the *other* reason that SETAs are a bad idea, the
trannies have to be absolutely *huge* because of the high level of DC
current.
--

Stewart Pinkerton | Music is Art - Audio is Engineering