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Total 6 documents matching your query.

1. [TenTec] Omni VI Rubbery crud on PCB (score: 1): Author: Ken Brown <kenradiobrown@gmail.com>; Date: Sat, 15 Jul 2017 13:32:44 -1000; My Omni VI had some dark brown rubbery stuff on the XTAL osc and BFO printed circuit boards, It is sort of like rubber cement and reminds me of similar stuff I found in Kenwood TS-440s. There is also; /archives//html/TenTec/2017-07/msg00044.html (7,365 bytes)
2. Re: [TenTec] Omni VI Rubbery crud on PCB (score: 1): Author: Bwana Bob <wb2vuf@verizon.net>; Date: Mon, 17 Jul 2017 21:22:20 -0400; Yuk! I've seen brown crud on the foil side of the circuit boards my Paragon and another one that I worked on. In those cases the crud was excess soldering flux. I cleaned it off with isopropyl alcoho; /archives//html/TenTec/2017-07/msg00050.html (9,055 bytes)
3. Re: [TenTec] Omni VI Rubbery crud on PCB (score: 1): Author: Steve Berg <wa9jml@frontier.com>; Date: Mon, 17 Jul 2017 20:53:17 -0500; The rubbery stuff may be conformal coating. I had to use that stuff when I worked in the Motorola factory when Ford wanted their CB radios to be gunked up with this stuff. Steve WA9JML On 7/17/2017 8; /archives//html/TenTec/2017-07/msg00051.html (8,032 bytes)
4. Re: [TenTec] Omni VI Rubbery crud on PCB (score: 1): Author: Gary F <dukeshifi@comcast.net>; Date: Tue, 18 Jul 2017 08:18:02 -0400; That stuff IS conformal coating! It it put there to reduce microphonics in VCO's. Paraffin wax would have worked as well and would not have been acidic. EE's are not chemists... Gary Sent from my iPa; /archives//html/TenTec/2017-07/msg00056.html (9,966 bytes)
5. Re: [TenTec] Omni VI Rubbery crud on PCB (score: 1): Author: Ken Brown <kenradiobrown@gmail.com>; Date: Tue, 18 Jul 2017 07:46:05 -1000; I recommend all who own Omni VI inspect their rigs to see whether they have this stuff on them. If they do remove each board that has it and use tiny tweezers and dentist's picks to remove it. Wash w; /archives//html/TenTec/2017-07/msg00060.html (11,654 bytes)
6. Re: [TenTec] Omni VI Rubbery crud on PCB (score: 1): Author: Stuart Rohre <Rohre@arlut.utexas.edu>; Date: Tue, 18 Jul 2017 16:33:13 -0500; All, it is very possible that this debris on the PCB is a Urethane product. It was popular for adhesive use, for open cell foam cushions, and making washers, etc. Urethane ages poorly in humidity. It; /archives//html/TenTec/2017-07/msg00061.html (8,429 bytes)

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