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Date
Re: HP 5315A With Destroyed Gate Pot and "frozen" Frozen Knob
Thanks for the detailed report on your fix. ?I know it¡¯s never easy to modify a piece of equipment but your fix looks professional and still uses the original labeling. NICE job. steve
By Stephen Hanselman · #140529 ·
Re: Electrolytic replacement
He's talking about a 5385A...not exactly "vintage"; certainly not to the level that you're talking about here. -Dave
By Dave McGuire · #140528 ·
Re: HP 5315A With Destroyed Gate Pot and "frozen" Frozen Knob
Many thanks to those who helped in this thread. The advice and encouragement (and proffered manual) yielded sanitary unit and a workaday solution for those who have smashed their gate pots to
By k6whp · #140527 ·
Re: Electrolytic replacement
I've done that too. It can be a lot of work and messy but it is nice once it's finished. I didn't opt to do that for my 7603 as I've not had good luck desoldering the cans when they're intact (too
By n4buq · #140526 ·
Re: HP XY Display PSU Query
I think thy is the problem - there is a mil spec JAE connector in the back with pins for the various supply rails. No idea is any of them are AC. Bw Tony
By Tony · #140525 ·
Re: Electrolytic replacement
Don't know it would work with PCB mount caps, but when I restored a bunch of 1940s-1960s Cossor and Telequipment 'scopes, I found that as modern caps were so much smaller for a given
By Adrian Nicol · #140524 ·
Re: Electrolytic replacement
Look in the files section here under ¡°Gerber files¡± I uploaded all of my gerbers for our various snap-in to pin adapters. Two of them are measured copies of HP¡¯s adapter plates steve
By Stephen Hanselman · #140523 ·
Re: Electrolytic replacement
Those little adapter PCBs are an interesting spin on it. I'll dig further into that when I get back on Sunday - maybe they have some that fit these HP Spragues.
By jslcanuck · #140522 ·
Re: Electrolytic replacement
If you're replacing a can cap, the ones in the link below work nicely. I just recapped one of my Tek 7603's rectifier/filter boards with them. For the "square" style, he now has two different
By n4buq · #140521 ·
Re: Electrolytic replacement
Yeah they're primarily aimed at vintage stuff. -Dave -- Dave McGuire, AK4HZ New Kensington, PA
By Dave McGuire · #140520 ·
Re: Electrolytic replacement
Interesting - what a peculiar specialty. Looks like they mainly do twist-lock tabs with solder terminals, and a few with pigtails. No PCB pins. Jonathan
By jslcanuck · #140519 ·
Re: Electrolytic replacement
Hayseed Hamfest manufactures a wide variety of can caps. They did some direct replacement caps for an HP volt meter I restored.
By PAUL KOBY · #140518 ·
Re: HP XY Display PSU Query
Oops, I was mistaken. The 1336S is an external power supply for the 1336A. Does your 1336A have AC and DC inputs?
By Tom Haynes · #140516 ·
Re: paging Reg Beardsly
Ok, just wanted to be certain. No rush. -Dave -- Dave McGuire, AK4HZ New Kensington, PA
By Dave McGuire · #140515 ·
Re: paging Reg Beardsly
Dave, Not filtering at all. Composing reply. It's a significant project. Have Fun! Reg
By Reginald Beardsley · #140514 ·
Re: HP XY Display PSU Query
Sadly there does not seem to be a manual of any kind relating to any of the different versions of the 1336 display - other than the spec sheet from various HP catalogues. Or at least my excavations on
By Tony · #140513 ·
Re: HP XY Display PSU Query
Thanks Tom - I saw the spec sheet and was intrigued by the high definition of these (albeit quite small) displays.? I was aware that they had some significance for the movie mentioned :-) BW Tony
By Tony · #140512 ·
Re: HP XY Display PSU Query
Hi Tony, If you assume that the 1336A and 1336S are similar, then maybe the schematics for the latter can be used as a rough guide, at the very least. A quick look at the connectors supports your
By Tom Lee · #140511 ·
Re: HP XY Display PSU Query
It looks like the 1336A received a revision to extend the input range for medical use and became the 1336S. There is more info available about the S rev. Here is a spec sheet https://g.co/kgs/xBsEZZ
By Tom Haynes · #140510 ·
Re: HP XY Display PSU Query
Hi Dave, No schematics, no pictures, nothing - this XY model (1336A) seems to be a bit of a ghost. I have not traced the +/-15V circuit yet (or indeed any of the others!)? - that's a job for the
By Tony · #140509 ·