Hi Gee, a low cost 5370....
The nice thing is that even though it runs hot - it's done it for a *long* time. I certainly would not argue against a fan. They are a *very* good idea. However it's not going to turn to dust without one. I would definitely keep it clean and keep the back side open to air. As you have noted - make sure the vent holes are where they should be and unblocked. Stacking 5 or 10 on top of each other likely isn't a good idea either .... Bob -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of gonzo . Sent: Monday, February 07, 2011 11:28 AM To: time-nuts Subject: [time-nuts] HP 5370A temp Hi all, I just picked up an irresistibly cheap 5370A (so cheap I didn't ask if it worked). So far it checks out ok, but I have some questions for those of you more familiar with this model. 1) The back panel heatsink (4x TO3) is sitting on 76°C (168°F). - is this normal? 2) Several resistors and diodes on the A6 Power Supply Controller show sign of excessive heat (specifically: CR1, R1 & R23). All the A6 voltage rails are within 0.2V. - Is this a normal sign of age or should I be looking for something that's NQR? Judging by the stickers, it's probably spent it's entire life with the side panels on the wrong sides.This may help explain the overheated components. cheers, ian _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
