Quote:
Originally Posted by cdm1christopher
Cheers Mike no wonder I'm getting odd readings. Yeah seen those but v1 says pin 7 also seems to have grid 5 attached aswell is that correct and if so am I actually gonna get a proper volt reading?
Pic of schematic I'm using attached no voltage measurements anywhere. Maybe they need filling in for future reference.0
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You can annotate the schematic with the voltages given in the valve voltage and current tables given in the manual.
The grids that are attached to one side of the filament are the suppressor grids, remember that the filament is also the "cathode" in directly heated valves.
Lawrence.