EEVblog Electronics Community Forum
Products => Test Equipment => Topic started by: SaabFAN on May 10, 2016, 03:56:41 pm
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Has anyone opened one of these Pods and took a look inside?
There are quite a few of these instruments on ebay for low prices, but the pods don't come with them, so I was wondering if it is possible to build such a pod.
The User-Manual talks about an RC-Network inside the pod, but doesn't give any details except that the inputs can be damaged if this RC-Network is missing.
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I think I've found the answer to my question: In the Workshop-Manual I found online, the input-circuitry is shown and the PODs, at least the passive ones, contain only a RC-Network, and have data-lines from the pods near the DUT to the connector at the front of the analyzer with a 151Ohms impedance.
I think with some resistors and a custom PCB, as well as a high-speed IDE-Cable it should be possible to build such a pod.
Seeing the inner workings of such a pod, to verify these findings, would still be nice though^^
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I remember I've done, years ago, terminal pods to solder on equipment under test. Cables are simple, they use twisted pairs but can be replaced by simple flat cable. In pod, each signal line is terminated by 2 capacitors and 1 resistor, if I have a good memory (not sure). I will be able to verify and to read values, I have some of these pods at home, but I'm not will be there before 1 or 2 weeks...
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Photos of pods made years ago (!) to be soldered on test equipment and to be connected directly to the flat cable.
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hello everyone, old age (recently retired) has given me retro computing (MSX, spectrum, amstrad,...), I've always liked electronics. He has given me a PM3585, which they had in a cornered workshop, but without the pods. I would appreciate if you can help me get it working. My intention is to use it for these old microcomputers, nothing serious, I just love these old computers.
If someone has a disused pod in some forgotten corner and can offer it to me at a reasonable price, I would be very grateful.
I also want to do the ones that are discussed in the forum, and know if someone has done it and they work well.
thank you so much .
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I haven't done one of those pods, but I think I'll create one on my next electronics stream. At least the design. Should be simple enough.
I'll post KiCAD-Files on Github when I'm done :)
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Thank you very much for the contribution, I look forward to it.