Astron DC power supplies are made of heavy duty, high quality materials Find Astron Power Supplies RSA and get Free Standard Shipping on orders over. Buy Astron Original RSA Power Supply, Linear, Regulated, 20A Peak, 16A Continuous, Output: Vdc, Input: V: Internal Power Supplies. ASTRON RSA 11 – 15 Volts Adjustable DC Linear Power Supply 16 Amps Cont 20 Amps ICS.

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Astron RSA: Radio Communication | eBay

Need to keep the Astron on the floor, away from the RF, and it stays happy. Patent and other rights reserved. We used 2 Halogen Fog Lamps at 9. When a fuse blows, my first thought is one of the rectifiers shorted, second thought is the crowbar shorted, third thought is the filter capacitor shorted, and everything else falls in after that.

I have not turned up the FTD to full W, but otherwise it is a solid power supply. And I can tell something is burned up because I smelled it What should I check first?


Asteon – When a fuse blows 5 amps in this casethen a short or component failure is causing excessive electrical current. Astron power supply part number example: The crowbar is not there to protect the power supply, it’s there to protect the load.

Here are a couple hints when using these supplies.

Unless one is skilled and careful it’s easy to do it wrong and cause another point of failure. Ripple less than 5 mv peak to peak full load and low line. Astron Model RSA Astron DC power supplies are made of heavy duty, high quality materials.

Check my feedback as I don’t sell junk.

Astron RSA Product Reviews

Register for a free QRZ account. Rss20a is a troubleshooting procedure: I bought one from the well known web auction site, seller represented it as perfect working condition. Several models come equipped with a metal sleeve hoodfor a two-way radio to be mounted inside. After replacing it, and the LM regulator IC for good measure no problems whatsoever.

All current issue metered Astron power supplies have illuminated meters. Not a likely problem, but easy to eliminate as the problem first off. What is “SCR in the crowbar”? A 20 astrom power supply should power a 50 watt radio with no problem. But again, you’re going to need a meter, soldering iron, and a knowledge of what’s safe to do and what’s not.


It has not been modified. This one is junk just like all the rest of the Astrons.

Request Quote or Price Match. Using an ohmmeter measure from one lead to another. Just joking, but you catch my drift. Use a recent version of the Adobe Acrobat reader and just mouse over the yellow folder symbols.

This problem is easily corrected by powering down the supply for 60 seconds, then turning it back on. This RSA is less than a year old.

Astron RS-20A

Also shop in Also shop in. It is continuous at 16 amps and 20a ICS, for those who want 20 amps continuous buy a bigger supply! Dad was an active and avid HAM radio operator for 73 years! Due to part swappers it is being sold as is with no returns. The unit is tested and working.