Zenith TV chassis 16K20 horn and fly

[zeno]

You check it at the cathode of the hoz output.
Break the connection, put mA meter in series. You also
need a cap across the meter IIRC a .01 but check
the manual.
Also check the G-1 voltage. If its less negative than spec
its usually a resistor in the horz osc or one of the tubes.

73 Zeno
LFOD !