Pete -- What is the resistance of R3, the 0.82-ohm grid-I meter shunt?
On Dec 1, 2004, at 2:29 PM, Pete Smith wrote:
I'm still puzzling over why my SB-220 would suddenly be showing
*negative* grid current when in transmit but with no drive applied.
Resting plate current is nominal, but grid meter deflects below zero
~20 ma worth. Output and tuning is normal. Something to worry about?
73, Pete N4ZR
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Richard L. Measures, AG6K, 805.386.3734. www.somis.org
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