Re: [time-nuts] HP-5372A and HP-5372A operation with no CRT display.

2020-07-06 Thread Gary Woods
On Mon, 6 Jul 2020 10:42:48 -0400, you wrote: >Certainly not as exciting as bring Cesium Beam standards back to life, but I >do like to keep the old boat anchors glowing, even if they only have a single >vacuum tube. HI . As the instructor at an RCA seminar said, "I like those glass NPN

Re: [time-nuts] HP-5372A and HP-5372A operation with no CRT display.

2020-07-06 Thread Lester Veenstra via time-nuts
. Lester B Veenstra K1YCM MØYCM W8YCM 6Y6Y les...@veenstras.com -Original Message- From: time-nuts [mailto:time-nuts-boun...@lists.febo.com] On Behalf Of Magnus Danielson Sent: Sunday, July 05, 2020 3:33 PM To: time-nuts@lists.febo.com Subject: Re: [time-nuts] HP-5372A and HP-5372A

Re: [time-nuts] HP-5372A and HP-5372A operation with no CRT display.

2020-07-05 Thread Magnus Danielson
Hi Lester, Good to hear your progress. So, I gather that you managed to successfully repair it, and it was a capacitor issue that I also had experienced. Which caps did fail for you? I think I recall a 50 uF bipolar cap. Cheers, Magnus On 2020-07-05 17:51, Lester Veenstra via time-nuts wrote:

[time-nuts] HP-5372A and HP-5372A operation with no CRT display.

2020-07-05 Thread Lester Veenstra via time-nuts
The repair bench is up and successful on repairing the A17 video driver boards. This involved replacing bad caps. If anyone has a bad A17 board, particularly ones with obvious blown (literally) caps, I would be happy to repair and bench test. No cost other than send it to me with a prepaid, pre