Audio and Video Talk > Valves / Vacuum Tubes

Testing an OPT

(1/1)

darrylo:
Hi

Is there anyone who cat properly test an OPT?

I have a leak 12.1 OPT that was diagnosed as faulty and replaced. I have installed the said faulty OPT and given it a listen. I cant seem to find any fault with it. I was told it worked t lower power levels but had issues at higher volume.

I suppose a scope and a audio signal generator would clear up if its faulty or not ?

charles:
Dear darrylo,

It is not so easy to check the performance of an output transformer.  Please PM in this regard.

Kind Regards

Charles

Ampdog:
Darryl,

As Charles said, not easy in the sense of a quick ohm-meter check. Several parameters have to be tested, but it can be done with signal generator, scope and another feeding amplifier/power source for high-level testing (about 30 minutes required). The specs are known. If you do not come right you can also contact me.

Navigation

[0] Message Index

Go to full version