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Re: Tek 2432 & 2430A Power up fails
My 2430 needed a ¡°cold start¡± before a self cal would clear those errors. ?ann mi?., 7. ma¨ª 2025 kl. 15:18 skrifa?i Gerdy via groups.io <gerdy_maelbrancke@...>:
By Sigur?ur ?sgeirsson · #209474 ·
Re: Tek 2432 & 2430A Power up fails
Have you worked though the service manual diagnostics and theory of operation? I¡¯m a bit surprised the Li-SOCl2 batteries aren¡¯t available. They¡¯re easily obtained here in the UK from various s
By Dave Voorhis · #209473 ·
Re: Tek 2432 & 2430A Power up fails
Update: my 2432A shows fault codes 7000 (CCD), 8000 (PA), 9000 (Triggs). The 8000 code today joined the 7000 & 9000 codes, not sure where this sudenly comes from. But NO 6000 code (CKSUM-NVRAM). Tried
By Gerdy · #209472 ·
Re: 465 Dead HV Multiplier?
Thanks everyone. Replaced with an ECG/NTE538 and my display works again. It shouldn't matter but I left the "CTL"/"D" line disconnected rather than connecting it to input. I had to do a significant
By Gabe · #209471 ·
Re: File /Tek TM500 Power Module Tester 067-1201-99 New Ver/Tek 067-1201-99 Power Test Module Manual v1.9.pdf uploaded #file-notice
Heya Jared!! Funny enough I just started soldering my tester last night!!! Can you tell us the changes you made since the last version??? -dc
By @ICY.dev · #209470 ·
Re: Slightly OT: Question on commercial PCBs (such as PC computer motherboards) vs "one off" or prototype PCBs (Oshpark / JLCPCB)
I agree. That was the point I was trying to make in the original post, the bare boards I get have never had a smell... that is what lead to my question about what is different between a bare board
By dc_rawding · #209469 ·
Re: Slightly OT: Question on commercial PCBs (such as PC computer motherboards) vs "one off" or prototype PCBs (Oshpark / JLCPCB)
I get a lot of bare boards from ALL PCB and JLCPCB and have never noticed them have a smell.
By Ed (SCSKITS) · #209468 ·
Re: Tek 453 variants
Perhaps there were multiple versions of the 703H. The one I have has the characteristics of the original 453, side mounted calibrator, and smaller CRT as compared to the 453A. Internally, boards are
By Ray M · #209467 ·
Re: Anyone have a power entry module for a TM502 chassis? Or advice on how to repair a broken one.
I think it is the exact same part IIRC, it was a while ago and I bought my TM502 already smashed, but from memory the remaining parts of the original mains inlet looked pretty much cross compatible.
By Jared Cabot · #209466 ·
Re: Slightly OT: Question on commercial PCBs (such as PC computer motherboards) vs "one off" or prototype PCBs (Oshpark / JLCPCB)
When I worked in welder repair yers back, the Chinese made welders had a particular smell, I traced it down to the conformal coatings on PCB's and varnishes in the transformers etc outgassing. Jared
By Jared Cabot · #209465 ·
Slightly OT: Question on commercial PCBs (such as PC computer motherboards) vs "one off" or prototype PCBs (Oshpark / JLCPCB)
Hello All, I have done many custom hobby level PCB and circuits (four layer and two layer boards), bought thousands of components from Mouser, Newark, etc, purchased hundreds of feet of hook up wire
By dc_rawding · #209464 ·
Re: Anyone have a power entry module for a TM502 chassis? Or advice on how to repair a broken one.
Thanks Jared! I wound up ordering the same part (Schurter brand) you suggested from Mouser after looking at all the variations and what was in stock. I also ordered an extra fuse drawer but I'm
By Jay Czaja · #209463 ·
Re: Anyone have a power entry module for a TM502 chassis? Or advice on how to repair a broken one.
Schaffner is known for using the dreaded exploding Rifa capacitors, so be careful of any older Schaffner power entry modules. I found one in IIRC an HP 70000 series spectrum analyzer from the 1980s or
By Jim Ford · #209462 ·
Re: Anyone have a power entry module for a TM502 chassis? Or advice on how to repair a broken one.
I have one with the same problem. I now use it for a test bed.
By Ed (SCSKITS) · #209461 ·
Re: vintageTEK new debugging aid
When posting an EBAY link, just post the information before the first question mark, not including the question mark. It should still work.
By Ed (SCSKITS) · #209460 ·
Re: Anyone have a power entry module for a TM502 chassis? Or advice on how to repair a broken one.
On my TM502A, I used Schaffner part number 4303.1093, and for the matching Voltage Selector Fuse Drawer I used Schaffner part number 4303.2014.01 (Just double check if the fuse drawer is included or
By Jared Cabot · #209459 ·
Re: vintageTEK new debugging aid
My CurveBug arrived today and appears to work as advertised. I'm sure it will come in handy, but I agree that having more OS support would be a plus. Dave Casey [email protected]> wrote:
By Dave Casey · #209458 ·
Re: Anyone have a power entry module for a TM502 chassis? Or advice on how to repair a broken one.
Thanks John, I may give that a try just to see how it works. After a bunch of digging, it looks like the correct part is still available. Schurter p/n 4303.0213 seems to be an exact fit minus the 4
By Jay Czaja · #209457 ·
Re: Anyone have a power entry module for a TM502 chassis? Or advice on how to repair a broken one.
Is it plastic? You can take a flat bladed soldering iron and put the temp at 450 deg and weld plastic. To make a tab, it helps to have a slab of iron or aluminum to mold against. The heatsink effect
By John Griessen · #209456 ·
Re: Looking for rear feet for 2465 DVM scope
Jason, Yes depending what S/N your scope is does indicate the type of fan. Best for you to remove the rear cover and you will have either the axial or squirrel cage style. The squirrel cage center
By Craig Cramb · #209455 ·