Tek TM500 WTB, Advise


Hello all.

I have a few parts I am looking for if anyone wishes to sell to me (I am in North Carolina) or can advise me the best options.

I have a TM504A with a cracked edge card connector. It says 131-1078-00 which I hear crosses to a EDAC 303-056-520-301 but the 303 series seems to be obsolete. I can't see any difference between that and a 305-056-520-201.  Can I use that or would anyone like to sell me the correct part?

I also wish to upgrade the noisy fan in the TM504A. It is a Whisper WR2H1.  I wonder if mine is just worn out as the specs look decent (72CFM, 37.6dBA).  Any ideas for a replacement? Looking at this one or someone want to sell me one?

Lastly I am looking for some stacked pots, knobs that would look good on a TM500 module for mods and repairs.
Pot stack 1 would have Pot 1 around 5K (10k would work) and Pot 2 between 100k and 500k (200k ideal). This is to add voltage and current adjust to the fixed output on a PS503A. Need pot and knobs.

Pot 2 is to replace a broken pot in a PS501-1. Need 1K pot and knob.

Neither has to be for a 500 series, just small Mod Pot type and small knob. I assume a junked 5000 or 7000 series module would work as well.

Thank you

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