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Total 12 documents matching your query.

1. [TowerTalk] Gigavac Relays (score: 1): Author: Howard Hoyt <hhoyt@mebtel.net>; Date: Sat, 25 Dec 2010 09:52:10 -0500; Howdy and Merry Christmas all, I maybe restating common knowledge here, but I just discovered that Gigavac has a special program to sell HV/RF relays to hams directly at a really reasonable cost: _ht; /archives//html/Towertalk/2010-12/msg00372.html (6,802 bytes)
2. Re: [TowerTalk] Gigavac Relays (score: 1): Author: Jim Brown <jim@audiosystemsgroup.com>; Date: Sat, 25 Dec 2010 11:24:23 -0800; Yep! They make direct replacements for both Kilovac and Jennings, both of which have been used by Ten Tec in their power amps. I've taken advantage of it to replace worn out relays in my Ten Tec powe; /archives//html/Towertalk/2010-12/msg00373.html (8,185 bytes)
3. Re: [TowerTalk] Gigavac Relays (score: 1): Author: "Jim W7RY" <w7ry@inbox.com>; Date: Sat, 25 Dec 2010 11:57:47 -0800; But you can go here: http://www.mgs4u.com/RF-Microwave/vacuum-relays-SPDT.htm and buy them for less. Same relay, $8.00 less. 73 Jim W7RY _______________________________________________ ______________; /archives//html/Towertalk/2010-12/msg00374.html (9,352 bytes)
4. Re: [TowerTalk] Gigavac Relays (score: 1): Author: "Rich Hallman - N7TR" <rich@n7tr.com>; Date: Sat, 25 Dec 2010 16:41:50 -0800; MGS is an authorized distributor of new Gigavac relays as well.....Plus a great assortment of used Jennings. I've used many of their Jennings relays with no issues while upgrading the TenTec Titan 42; /archives//html/Towertalk/2010-12/msg00375.html (8,976 bytes)
5. Re: [TowerTalk] Gigavac Relays (score: 1): Author: "Richard (Rick) Karlquist" <richard@karlquist.com>; Date: Sat, 25 Dec 2010 20:53:40 -0800; I can report that the ham purchase program works as advertised for about $85. I bought the 12V version and rebuilt my homebrew QSK circuit for my linear. I used the speed up circuit shown here: http:; /archives//html/Towertalk/2010-12/msg00376.html (8,745 bytes)
6. [TowerTalk] Gigavac Relays (score: 1): Author: "Jim Thomson" <jim.thom@telus.net>; Date: Mon, 27 Dec 2010 00:40:22 -0800; I can report that the ham purchase program works as advertised for about $85. I bought the 12V version and rebuilt my homebrew QSK circuit for my linear. I used the speed up circuit shown here: http:; /archives//html/Towertalk/2010-12/msg00377.html (11,496 bytes)
7. Re: [TowerTalk] Gigavac Relays (score: 1): Author: "Tod Olson"<tod@k0to.us>; Date: Mon, 27 Dec 2010 08:49:16 -0700; Jim: I control my latching relays with one control line plus ground. It requires two voltages [+ / - ] and a simple RC circuit in each + and - source used to feed the control line for the relay. The; /archives//html/Towertalk/2010-12/msg00378.html (12,596 bytes)
8. Re: [TowerTalk] Gigavac Relays (score: 1): Author: "Richard (Rick) Karlquist" <richard@karlquist.com>; Date: Thu, 30 Dec 2010 08:15:07 -0800; The drop resistor with 2X voltage only gives half as much speed up as the K6XX circuit I cited. However, you cannot speed it up by going to still higher voltages because it is limited by contact boun; /archives//html/Towertalk/2010-12/msg00436.html (8,749 bytes)
9. Re: [TowerTalk] Gigavac Relays (score: 1): Author: "Jim Thomson" <jim.thom@telus.net>; Date: Fri, 31 Dec 2010 08:09:45 -0800; &&& The K6XX circuit just doubles the OCV when T=0 The 12 vdc across the 47 uf cap in his circuit is now in series with the 12 vdc OCV... so you end up with 24 vdc... for a split second...until the c; /archives//html/Towertalk/2010-12/msg00481.html (12,256 bytes)
10. Re: [TowerTalk] Gigavac Relays (score: 1): Author: "Tod - ID" <tod@k0to.us>; Date: Fri, 31 Dec 2010 11:21:19 -0700; Rick & Jim - so much old text it is hard to find the new stuff. relays..that K0TO response => For me the simple solution was to put a series resistance followed by a shunt cap across the supply leads; /archives//html/Towertalk/2010-12/msg00484.html (9,015 bytes)
11. Re: [TowerTalk] Gigavac Relays (score: 1): Author: "Richard (Rick) Karlquist" <richard@karlquist.com>; Date: Fri, 31 Dec 2010 11:39:03 -0800; The difference is that the K6XX circuit applies 24V for as long as is necessary (just size the cap accordingly). The resistor technique starts out at 24V but decays at a rate dependent on the coil in; /archives//html/Towertalk/2010-12/msg00488.html (10,319 bytes)
12. [TowerTalk] Gigavac Relays (score: 1): Author: Howard Hoyt <hhoyt@mebtel.net>; Date: Fri, 26 Apr 2013 13:28:50 -0400; Tonno, I have used the Gigavac G2 series in a remote transmitter transfer switch and they perform as advertised, never had a failure. I know that one passed a lightning hit at least once, because the; /archives//html/Towertalk/2013-04/msg00330.html (7,038 bytes)

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