[Amps] SB200 Excessive Grid Current

Dan Baker af9r at comcast.net
Wed Nov 26 10:39:48 EST 2003


Hi
Thanks for the replies to my request for help.  I found the problem - it was
an open  1.5 ohm resistor that was used to meter the grid current.  The grid
current I saw on the meter was not actually grid current.  Also this caused
the tubes to be biased off hence no output.  With the resistor replaced the
amp is working fine.
Thanks for your help
Dan AF9R
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