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In Reply to: RE: triode strap d3a:can wire wound plate resistor cause oscillation ? posted by genelex on October 24, 2015 at 14:01:03
Do you have a grid stopper on the tube?
How close to the plate pin on the socket did you mount the plate load resistor?
Follow Ups:
all 3 grids have 100 ohm carbon comp stoppers
That's a pretty good effort to rid oscillation. Can you access a high bandwidth scope to see what's going on?
JOC, why did you place resistors on all three grids? You may need to go to a higher resistance carbon comp on the signal grid. 1K or higher.
Thanks!
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