[R-390] R-390] Test Equipment Question

[wli]

Steve:

You have all you really need EXCEPT for the all-important Bristo wrench set. Get them from McMaster.

For alignment, all that is needed is an AC voltmeter with a dB scale, a 600 ohm resistor, and a URM type RF generator. The AN/PSM-4 was called for in voltage and resistance checks (20K/volt VOM).

A TV-7 will quickly cull out the bad tubes and give you an idea of which tubes are *hot*.

For convenience, I have found tube extenders useful in checking voltages. Tube extenders make it a lot easier to access the pins rather than trying to access them under the chassis.

All the other gear makes things more fun to do, appease our desire for engineering precision... but are not required to do the job.

Have fun!

W. Li
Mercer Island