An update: The JAMMA harnesses (2) I ordered from Amazon arrived yesterday: https://www.amazon.com/Atomic-Market-Harness-Extension-Cabinets/dp/B07KJVLSPV The JAMMA edge connector signal spec is

Login to 'scope using LAN (procedure not public domain, not sure if disclosing here is OK, find on Internet (e.g. EEVblog). Send: ERRLOG CLEAR Raymond

194 pages? Holy cow, that’s the mother of all Mod Summaries. The 575 had a very busy design history. Thank you for scanning it and making it available, and especially for getting permission

So, Once many moons ago, I purchased a (physical) copy of 575 Modification Summaries from Stan Griffiths. Since he's no longer with us, and after a quick conversation with the museum, I don't

Does anyone know how to delete -reset the error log ? Many thanks in advance. Maurizio IZ1MDJ

I sit corrected, there is a 127 for 7000 series plugins! Anyone know where to find one? None for sale on ebay or google.

Try with IR led

A Keithley 610B/C electrometer would work well. DaveD

Mike, I need to add a VTVM to my bench. I have a kit for one (an RCA Senior Voltohmyst that my father bought a month or two after I was born, but never assembled), but not an assembled, working

SCMenasian, All of the LEDs that I am currently experimenting with are encapsulated in clear epoxy. I wonder, however, what the actual optical properties of clear epoxy are. They obviously don't

http://www.emissionlabs.com/datasheets/glue.html

One thing to consider is that white LEDS use a UV diode to excite a phosphor layer. Harvey

Rebonjour on a few 260 and Triplett VOM, the coil insulation can flak or a microscopic bit of dust or debris enters the D'Arsonval movement Symptoms are movement sticking at a certain point on every

Tek also made the NT7000 plugin PSU (Tekwiki again) Tim gmail.com@groups.io> wrote:

Hi Mark, Thanks so much for the reply and clarifications. I got a chance to peruse the manual and I see the schematic for that interface. I'm not looking a the scope at the moment, but I think the

I may have missed something - did you say what the color of the epoxy on the receiver side is? Some red LEDs are encapsulated in clear epoxy; many are in red epoxy. This could make a big difference

Right enough, Jac, for day to day valve testing I just use an AVO MK3 VCM (electrode continuity, insulation - cathode cold or hot, gas, etc.), plus AVO's method of determining Ia & mA/V. Likewise -

I think it was Ulf Kylenfall (ulf_r_k). Colin.

Tekwiki mentions the Oregon Analog ASM7 which does exactly that, although I've never seen one, or heard of anyone having one. Wonder what happened to it? (Pics under 7000 3rd party) Tim

Jeff: Have you considered doing your receiver/receptor output measurements with an analog meter, such as a vacuum tube voltmeter (VTVM) or perhaps an analog FET voltmeter?  These devices typically