>
>I pulled up the subscriber list yesterday...there are some 425
>subscribers to "AMPS." Since I am no spring chicken, and
>did not just fall off the turnip truck onto this reflector, I think I
>can safely say that there are at least 200-300 of us out here in
>cyberville that would like to know the following:
>
>1. What was the intended "mission" of the "DAF amplifier?
>
> a. to save money
A regulated screen supply for an 8171. takes a approx. 1200v, 100mA power
transformer, rectifiers, C-filter, a 723 IC, a hexfet, a SCR and a few
small components. This takes perhaps $35 for swap-meet mavens The
0mA grid bias supply might cost $25.
> b. to get higher power out of a tube than by other classes of operation
The DAFs I am familiar with ran substantial grid-current. Perhsps 1db
more power resulted - compared to virtually zero grid-current
operation.
> c. to use a tube that is not normally suited for linear amp use.
The only tubes that are simply not suited for use in a DAF amplifier are
those that are producing embarrassing splatter.
> d. to gain notoriaty for the "inventor"
It's kinda like voting for Ross Perot.
> e. all of the above
> f. none of the above
>
>Inquiring minds would like to know!!!
>
I realize that it sounds off the wall, but I am beginning to suspect that
some of the true-believers may have had trouble with an authority figure
during their early childhoods. For some, the 3/2-Power Law seemingly
sticks in their craw.
I also suspect that some of the professed True-believers are covertly
seeking attention.
Cheers, Phil.
>
- Rich..., 805.386.3734, www.vcnet.com/measures.
end
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