Expo convertors with tubes ?

[Scott Gravenhorst]

"Debby and Gene Stopp" <squarewave at jps.net> wrote:

>May it be justifiable to "pollute" the pure-tube concept just
>a bit in order to gain the synthesis advantages of wide-range tracking
>oscillators?

IMHO:  For the life of me, I don't get the purist thing at all.
A circuit that makes a beautiful sound is a good circuit.  I
don't understand why it would make a difference *what* you make
it with.  A curious challenge, perhaps and that has it's merits,
but why not use the entire pallete of parts to which we have access?
The expo converter is a great example of something that a transistor
does by it's very nature and does it well.  There is nothing wrong
with that or with mixing vacuum tube technology with that of solid
state.  I think that it makes sense to use whatever components best
fit the function.  And after all, semiconductors (most) and tubes
share a common element: silicon!

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