The new RS-35M, June, 2010 - Stu Martin, k2qde@optonline.net
This is a short note of thanks to you and your contributors for the top Web site supporting Astron’s RS-35M
power supply. Seems I’ve acquired the most current model so I felt compelled to submit the changes I found.
This unit was purchased through eBay for $155, Oct. 2009.
Let me know if you need any additional photos. Sorry that I did not have time to lift the circuit board and
inventory and match-up those components. And lastly, no modifications were performed on this unit. This
supply is a clean production unit. Should any maintenance issues develop they will be reported.
Figure 1
Fig: 1:
During the initial inspection I noticed this RS-35M is the latest in the series with illuminated meters and a
removable power cable.
Figure 2
Fig: 2
The small red-coiled wire run is the positive line for the illumination. It’s taken directly off the diodes. The
negative side loops up to the negative terminal of the voltmeter and terminates at the negative output stud of
the power supply. Since the lamps are non-regulated, illumination will fluctuate with load changes.
Figure 3
Fig: 3
Not much has changed internally.
Figure 4
Fig: 4
This Model now supports a non-RFI filtered, CEE-22 AC power socket allowing removable custom length
cables. A standard 6 foot cable was supplied with a right-angle mate. I used a 3x16 gauge, 10 foot cable
rated at 10 amps. The socket seems good but who knows? It’s a clip-in connector (no chassis screws), snugfitting affair and did not feel hot.
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