[Motorola] test cables and TEK-5

[motorola@mailman.qth.net]

Jeff:

If you can't find what you need, you can use the trick I used 'way back then.
The test set was basically a glorified 20K ohms/volt meter with the test
cables and a selector switch.  If you have radio schematics, you can find the 
test connector pinout and use a good ol' Simpson 260 or other 20K ohms/volt
meter by measuring at the test connector pins one at a time.  Takes a bit longer
than using the test set, but does the job.  Don't try this with a modern volt 
meter with many megohms input impedance.  The radios were designed to be tested 
with a 20K ohms/volt meter and the testing depended on loading the radio circuits
with that impedance.  A modern meter with nearly infinite impedance may give
you erroneous readings.

Same info for GE up to about their MastrII series.

Happy metering,

Dick

Jeffrey wrote:
> 
> This question is put to the Motorola guys that have been around for a long
> time. I have just acquired a Motorola TEK-5E test panel and don't have the
> book for it.  It came with Micor test cables that connect to the 20 pin
> rectangular adapter connector that plugs into the TEK-5 metering panel.  Can
> I use the cable I have from the older style (Motrac vintage) test meter box
> that has the same 20 pin rectangular connector on the test meter end , and
> the small round 12 pin connector (like on Mocom and Mitrek) on the other end
> , to test Motran , Mocom and Mitrek radios?  If you did not get that , let
> me say it this way.  Can the old Motrac 12 to 20 pin cable be used on my
> TEK-5 meter panel to test Motran, Mocom and Mitrek? Thanks , Jeff
> 
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