After having some issues with degrading output power under a heavy load, it was time to perform some surgery on my trusty Astron RS-35M power supply. According to Astron, the serial number dates back to late 1990. I acquired this unit in June 1991. It was easier and more cost effective to install a new regulator board. This required some modification.<\/p>\n\n\n\n
Filter caps are a known culprit for degraded performance. I replaced the Cornell-Dublier capacitor with a locally manufactured United-Chemi Con model. The “L” in the code stands for “Lansing.”<\/p>\n\n\n\n
And the final touch was adding back lit LED meters.\u00a0 Here’s to 27 more years of solid performance powering W4MLN.<\/span><\/p>\n\n\n\n After having some issues with degrading output power under a heavy load, it was time to perform some surgery on my trusty Astron RS-35M power supply. According to Astron, the serial number dates back to late 1990. I acquired this unit in June 1991. It was easier and more cost effective to install a new … <\/p>\n![\"\"](\"https:\/\/w4mln.net\/wp-content\/uploads\/2017\/12\/InsideRS-35M.jpg\")
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