Gentlemen- Since I got it working several years ago, my HP-5060A has a rather loud ~2KHz audible whine coming from it. It seems to be a result of the switching power supply in the A20 oven controller module.
Is it worth my efforts to try and "fix" the problem or have others already found a solution? The unit lives in the back storage room to try and keep the whine from bothering myself and family, but after all these years it still bothers me. During my initial repairs to get the unit running nothing obvious appeared to be microphonic in the A20 module. The xfms are all potted in epoxy. Do other 5060 owners have the same symptoms? -Brian, WA1ZMS _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.