EB5AGV's TV-7 Voltage Alignment Instructions

Keep them glowing!

This procedure was developed from some notes Dan Nelson, the TV-7 expert, sent me some time ago in order to align my TV-7C/U. I sorted all the info I got in an easy-to-follow way... I hope you can use it to get your TV-7s to specs!. Any questions will be welcomed. As usual, BEWARE WITH HIGH VOLTAGES PRESENT IN THE UNIT. Don't do it if you are not confident.


VOLTAGE ALIGNMENT IN A TV-7 TESTER

STANDARD CONDITIONS:

-Settings: HS5-3460
-Plate load: 375K resistor between pins 3 and 6 in octal socket (plate load).

FILAMENT and PLATE adjust

GRID, LO SCREEN and HI SCREEN adjust

And that's all!. Now you should have a voltage calibrated TV-7. Next step is to calibrate the transconductance (gm) readings. I'll post this method as soon as possible... stay tuned!.


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