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1. [TenTec] Model 963 questions (score: 1): Author: Richards <jruing@ameritech.net>; Date: Tue, 20 Sep 2011 16:37:08 -0400; Greetings. My Model 963 switching power supply causes me to ask... 1) Is it expected that the power-on pilot light will "flicker" orange, or should it stay a constant brightness ? Mine has taken to f; /archives//html/TenTec/2011-09/msg00353.html (8,130 bytes)
2. Re: [TenTec] Model 963 questions (score: 1): Author: Stuart Rohre <rohre@arlut.utexas.edu>; Date: Tue, 20 Sep 2011 15:49:43 -0500; The flickering pilot light makes me wonder if it is a neon lamp in an off on switch? The neon AC operated lamps are notorius for getting to an age where they are photo sensitive to room lights, and a; /archives//html/TenTec/2011-09/msg00354.html (8,324 bytes)
3. Re: [TenTec] Model 963 questions (score: 1): Author: Richards <jruing@ameritech.net>; Date: Tue, 20 Sep 2011 17:07:17 -0400; Thanks for the quick feed back. Some comments while I try what you suggest: 1) My bad. Apparently, I was not clear in my first post... the hash shows up in the middle of the AM Broadcast Band at 0.85; /archives//html/TenTec/2011-09/msg00355.html (10,417 bytes)
4. Re: [TenTec] Model 963 questions (score: 1): Author: Richards <jruing@ameritech.net>; Date: Tue, 20 Sep 2011 17:25:57 -0400; Hmnm..... the plot "sickens...." 1) Ferrite beads on the DC leads have no effect. 2) AC Isolalation transformer (even on different AC lines) - no effect. 3) Turning the mobile rig (Yaesu FT-2900) off; /archives//html/TenTec/2011-09/msg00356.html (10,616 bytes)
5. Re: [TenTec] Model 963 questions (score: 1): Author: Richards <jruing@ameritech.net>; Date: Tue, 20 Sep 2011 17:39:37 -0400; I might have traced the buzzing down to the FT-2900. * It stops if I unplug it. * It gets worse and the buzzing "warbles" (oscillates?) when I only plug in the red or the black wires, alone. * It get; /archives//html/TenTec/2011-09/msg00357.html (11,688 bytes)
6. Re: [TenTec] Model 963 questions (score: 1): Author: Stuart Rohre <rohre@arlut.utexas.edu>; Date: Tue, 20 Sep 2011 16:58:07 -0500; Richards, OK, 850 kHz is a more expected harmonic of a switcher. Since it is two years old, I am thinking maybe you have a previously good filtering capacitor starting to change value or go open circ; /archives//html/TenTec/2011-09/msg00358.html (9,209 bytes)
7. Re: [TenTec] Model 963 questions (score: 1): Author: "PTA_ABD" <wb2abd@roadrunner.com>; Date: Wed, 21 Sep 2011 17:53:31 -0400; One of the first things I noticed when I purchased my brand-spankin' new 0rion-2 and 963 was "floaters"on 160M. Not having these with other radios, it was narrowed to the 963. Tried a friends' ... sa; /archives//html/TenTec/2011-09/msg00373.html (7,917 bytes)
8. Re: [TenTec] Model 963 questions (score: 1): Author: Richards <jruing@ameritech.net>; Date: Wed, 21 Sep 2011 23:37:18 -0400; Thanks for the Uptake,Paul. I will be testing my second RS-35M that I usually only drag to the contest station I play on... maybe it will find a more permanent billet in the shack. -- Happy Trails. =; /archives//html/TenTec/2011-09/msg00381.html (8,585 bytes)
9. Re: [TenTec] Model 963 questions (score: 1): Author: "Mike Hyder -N4NT-" <Mike_N4NT@charter.net>; Date: Thu, 22 Sep 2011 07:23:41 -0400; There have been troubles reported in the past with the Astron RS-35 due to RF energy entering the unit. I do not know if newer models have eliminated that but here's what they said ten years ago. 73; /archives//html/TenTec/2011-09/msg00382.html (9,169 bytes)
10. Re: [TenTec] Model 963 questions (score: 1): Author: Richards <jruing@ameritech.net>; Date: Thu, 22 Sep 2011 15:53:11 -0400; I understood from reading elsewhere that particular problem had been resolved with a circuit revision. THANKS for the uptake. -- Happy Trails. == Richards / K8JHR == _________________________________; /archives//html/TenTec/2011-09/msg00391.html (8,402 bytes)
11. Re: [TenTec] Model 963 questions (score: 1): Author: "Mike Hyder -N4NT-" <Mike_N4NT@charter.net>; Date: Thu, 22 Sep 2011 16:27:49 -0400; Could be you're right. But those things have been around for a long time and a lot of them left the factory unsuitable for use in an RF environment. If it applies, there it is. If not, no harm, no fo; /archives//html/TenTec/2011-09/msg00392.html (9,866 bytes)
12. Re: [TenTec] Model 963 questions (score: 1): Author: Carl Moreschi <n4py2@earthlink.net>; Date: Thu, 22 Sep 2011 16:56:04 -0400; I have been using an Astron 35M for my main supply since 1987. It has been on constantly since then except for when I shut things down for storms. The supply has never had any RFI problems and has pe; /archives//html/TenTec/2011-09/msg00393.html (10,494 bytes)
13. Re: [TenTec] Model 963 questions (score: 1): Author: Stuart Rohre <rohre@arlut.utexas.edu>; Date: Thu, 22 Sep 2011 18:51:49 -0500; Astron does have some funny circuits. I think it is the 35 amp supply that uses half of a bridge for a full wave rectifier, instead of a bridge. In some other models maybe they do use a bridge as a b; /archives//html/TenTec/2011-09/msg00394.html (8,991 bytes)
14. Re: [TenTec] Model 963 questions (score: 1): Author: "Mike Hyder -N4NT-" <Mike_N4NT@charter.net>; Date: Thu, 22 Sep 2011 20:01:46 -0400; With the negative floating, RF could enter directly into the voltage regulator IC. After receiving the email from Astron, I removed the insulators from the negative post and cleaned enough of the pai; /archives//html/TenTec/2011-09/msg00395.html (10,465 bytes)
15. Re: [TenTec] Model 963 questions (score: 1): Author: Don Allen <w9cw@yahoo.com>; Date: Fri, 23 Sep 2011 17:33:47 -0500; I have two Astron RS-35M supplies, one purchased about 12 years ago, and the other about 6 months ago. One constant discussion on this supply's design is "to chassis ground or not to chassis ground"; /archives//html/TenTec/2011-09/msg00404.html (9,775 bytes)

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