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Old 13th April 2004, 04:31 AM   #1
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Default grid bias

hey guys. it's late and i'm too lazy to go into detail (maybe tomarrow) but following the instructions here: http://www.tubecad.com/articles_2003...ier/index.html
when I was working on my minimalist amplifier design gave me a grid bias voltage of 17mV for a sv572-160 driver tube. Does that sound right?
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Old 15th April 2004, 07:43 AM   #2
dhaen is offline dhaen  Europe
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Clearly incorrect. Check the tube's datasheet.
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Old 19th April 2004, 06:49 AM   #3
billr is offline billr  New Zealand
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hi

here is a copy of the tech data sheet for the -160

http://www.svetlana.com\graphics\pro...\SV572-160.pdf

funny thing about the svetlana site is that all the information under the main banner is still there.

I could see that the bias point may in fact be 17volts, you need power to drive this thing, as it operates in A2, this means a low impedance source, probably a cathode follower, or an interstage tranny in the anode cct of the driver stage, with bias introduced through the other end of the secondary.

best of luck.

bill ramsay:
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