10-09-2014, 08:32 PM
I just finished my 40-180 restoration and now that it is all together I am hearing a slight hum.
I can disconnect the speaker and get a little hum I guess just from the transformer itself resonating through the cabinet but once I connect speaker it gets a tad louder.
I don't recall hearing this when it was on the bench.
Do these units usually exhibit a slight hum or do I have something else going on?
Most might not hear it but I can of course
I can disconnect the speaker and get a little hum I guess just from the transformer itself resonating through the cabinet but once I connect speaker it gets a tad louder.
I don't recall hearing this when it was on the bench.
Do these units usually exhibit a slight hum or do I have something else going on?
Most might not hear it but I can of course
