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Old 11-06-2016, 01:49 PM
kvflyer kvflyer is offline
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Join Date: Nov 2006
Location: Fernandina Beach, FL
Posts: 1,057
Quote:
Originally Posted by Hagstar View Post
The new focus coil is installed the Philco- no more burning there, old flyback still in. But though the horz. output tube is fed the right voltage of B+ once the tube *warms up* it plummets to like 70 volts from 260 even though cap plate lead is off. Grid input voltage is a little off specs at -55 (listed as -60). Another mystery.
Grid emission? High power tubes are suspect.
Do you have a new Horizontal Output Tube?
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