Tube DC amplifier

[David Halliday]

I seem rember that Eric Barbour posted some old schematics on a web site. A
couple minutes browsing through midiwall, synthfool and altavista didn't
turn these up but the key element was the circuit for the Philbrick Op-Amp -
not a speed daemon but nice and linear and it was a tube Op-Amp and the same
design rules applied to it as do to current chips.




-----Original Message-----
From: owner-synth-diy at mailhost.bpa.nl
[mailto:owner-synth-diy at mailhost.bpa.nl]On Behalf Of Doug Tymofichuk
Sent: Wednesday, January 05, 2000 9:39 AM
To: synth-diy at mailhost.bpa.nl
Subject: Tube DC amplifier


I am looking for a design for a tube DC amplifier offering
a voltage gain of 10 - 20 without inverting the signal and
with a minimum parts count and reasonable linearity. Low
current output is all that is required. I need to use this
to amplify 0 to +10 volt control voltages to about 0 to
+150 volts for input to other tube modules. One tube or
less would be nice. Any ideas?

TIA
----------------------
Doug Tymofichuk
dougt at cancerboard.ab.ca