>I just replaced all 4 tubes in my Ameritron AL 811H amp...When I turn it
>on, the Plate Current (Ip) goes to 75 mA, and the Grid Current meter
>pins itself fully left (less than 0 mA)...The HV is OK at 1800 volts...I
>think I put everything back together the way it was before I took out
>the old tubes...
>
>Anyone know what gives here?
Scott,
Verify that all of the tubes are 'located' properly in their socket. I seem
to remember you can be out of sequence with regards to your pin location on
811's pending the type of socket they are in. You may have filament AC on the
grid! Just verify the filaments and re-install.
Mike(y)
W3SLK
|