|[AMRadio] Tranny Test|
rickbras at airmail.net
Mon Feb 19 14:54:48 EST 2007
Okay.. I have decided the filament transformer in the GE may still be
okay. I've had it connected through a Variac at 100 volts (the stated
primary voltage of the transformer) for about 2 hours and it is barely
warm. I also have a 5R4 filament connected to it as it would be in the
circuit. In addition to that I have about 10 ohms of resistance on the
output causing a current draw of about 450 ma. With all of this it
still seems to be fine and is not heating up at all. However, I need a
way to test the high voltage insulating properties of the secondary
since this is used in a full wave rectifier circuit of about 800 volts.
I do not have a megger or similar device, so is there any quick and easy
test I can perform short of putting it back into the actual circuit to
see if it breaks down under full load conditions?
More information about the AMRadio mailing list
This page last updated 10 Dec 2017.