http://tdsl.duncanamps.com/show.php?des=EL34

Have a look at the above. In fixed bias, you should be seeing something like
-30 to -35 volts on grid one, which is pin 5. Pin numbers are allocated from
the underside of the valve base. If you think of the little indent that the
valve bases' guide goes into as zero, then go clockwise around the underside of
the base and count 1,2,3,4,5,6,7,8 and then you're back at the indent.
If it's fixed bias of the usual kind, it'll either have no cathode resistor or
something small like 10 ohms for measurement purposes. (the 470 ohm cathode
resistor would be for self-bias)
Now, I don't know how your amp is constructed so the above is a 'guesstimate'.


=== Andy Evans ===
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