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Total 4 documents matching your query.

1. Re: [TowerTalk] insulating oil (also PCB issues) was Re: HN-31Heathkit Dummy Load (score: 1): Author: Jack - K4WSB <K4WSB@arrl.net>; Date: Tue, 04 Apr 2006 14:50:08 -0400; The specs I read where out of the Heath manual... They offer 2 very different key down times using what they are calling transformer oil and mineral oil. Jack Hartley K4WSB ARRL - QCWA - OOTC DXCC Ho; /archives//html/Towertalk/2006-04/msg00079.html (16,191 bytes)
2. Re: [TowerTalk] insulating oil (also PCB issues) was Re: HN-31Heathkit Dummy Load (score: 1): Author: kb0fhp@comcast.net; Date: Tue, 04 Apr 2006 21:34:18 +0000; Personally, the use of quench oils used in heat treating also works well. It is typically a high grade paraffinic mineral oil, with oxidation additives added for this severe duty. These can be obtain; /archives//html/Towertalk/2006-04/msg00081.html (17,221 bytes)
3. Re: [TowerTalk] insulating oil (also PCB issues) was Re: HN-31Heathkit Dummy Load (score: 1): Author: "K8RI on Tower talk" <k8ri-tower@charter.net>; Date: Tue, 4 Apr 2006 17:54:49 -0400; One thing I've not see listed is 200 fluid. It's not normally listed as transformer fluid, but of the right viscosity *range* it'd make very good fluid for dummy loads. The stuff is Silicone based an; /archives//html/Towertalk/2006-04/msg00082.html (19,005 bytes)
4. Re: [TowerTalk] insulating oil (also PCB issues) was Re: HN-31Heathkit Dummy Load (score: 1): Author: Jim Lux <jimlux@earthlink.net>; Date: Tue, 04 Apr 2006 15:16:13 -0700; http://www.shell-lubricants.com/products/pdf/DialaAX.pdf 9.1 centistokes @ 40C, 2.3 cSt at @100C 55.8 SUS @ 40C, 33.9 SUS @100C For comparison, USP White Mineral Oil seems to be available in SUS@100F; /archives//html/Towertalk/2006-04/msg00083.html (9,075 bytes)

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