Your semi-annual Astron tip... People come and go from this reflector. This is a reminder that many troubles with Astron power supplies can be cured by grounding the negative post to the cabinet. I d
Thank you Mike for sharing that with us! I am sure many users, myself included, did not realize the Astron supplies have "floating" ground. (its probably why the other radio, (Icom 706) kept tripping
Mike, do you know if the 963 has floating ground? Of course I could measure it, but this is the easiest way to find out. 73 Rick Your semi-annual Astron tip... People come and go from this reflector.
Hi Rick, How's things in Deuchland? The 963 does not have a floating ground, It is pretty well done. The 963 is the same basic circuit as the Astron ss30 switcher.... On a side note, I've tamed the f
Sorry, all I know about is the Astron RS-35 circa 2001. I do not know what changes they may have made. If you examine a schematic of that supply, you will see that if RF gets into the negative post,
HI Rich, Hope things are well with you. That's a great mod, but... gosh, where do you find a 2 watt resistor these days? Years ago I had one of the best sorted junk boxes the world had ever seen. Due
Rick - My 963 has the ground terminal to ground. Checked with Ohmeter between the neg term to a fan mounting screw. Zero Ohms. Don, ve1bn@ns.sympatico.ca _____________________________________________
<< gosh, where do you find a 2 watt resistor these days? >> Do you have a Digi-Key catalog, or have you checked their web-site? 73, K3yd _______________________________________________ TenTec mailing
I remember seeing this before a couple of times, but thank you for reminding us all of it. I feel this reminder was most timely. I dare say other models of power supply might benefit from the same mo
Tnxs Mike gud info. my astrom 35 hums,vibrates. I can't figure out if loose wires in transformer or case. it works fine. I set it on 2 mouse pads on floor and seems to help. My astron 20ss switching
snip snip When the power supply is used with another connected in series to produce 24 volts for a military radio, or any situation requiring the series connection of their output to produce the requ
Another Astron tip: After a few years, (or not), tighten up the bolts holding the laminations of the transformer and you may reduce the hum. Also check the mounting foot bolts for tightness. The mous
Author: Robert & Linda McGraw K4TAX <RMcGraw@Blomand.Net>
Date: Wed, 30 Nov 2005 07:11:01 -0600
Many of the new switching and linear supplies have 3 output terminals. The POS, the NEG and the GRD. This is done to allow connecting two supplies in such configuration to provide a bipolar voltage f
Excellent point ! should something 24 connection _______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.contesting.com/mailman/listinfo/tentec
I purchased a new Astron RS-35A from Ham Radio Outlook in August, 2005. Checks, by my Fluke 27 Multimeter and the schematic diagram dated January 2000, show that the negative output is not floating b
Just another FYI.. Had a problem with my RS50M today.. started getting all sorts of RF in the rig... I tied the negative post to the small ground lug below the neg post on the supply.. still had RF..