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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Amps\]\s+Relay\s+suggestions\s+please\s*$/: 20 ]

Total 20 documents matching your query.

1. [Amps] Relay suggestions please (score: 1)
Author: Steve Thompson <g8gsq72@gmail.com>
Date: Fri, 09 Mar 2012 08:38:24 +0000
I'm looking at a lower cost alternative to a switching system that currently uses coaxial relays. Frequencies up to 30MHz, powers in the region of 1kW and continuous carrier has to be catered for, bu
/archives//html/Amps/2012-03/msg00067.html (6,434 bytes)

2. Re: [Amps] Relay suggestions please (score: 1)
Author: Pete Smith N4ZR <n4zr@contesting.com>
Date: Fri, 09 Mar 2012 05:07:44 -0500
Steve, you might want to take a look at the PCB relays used by Inrad in their antenna switches. IIRC, they have been tested to 1.5 KW continuous, 30 MHz and at 3:1 load SWR, and the last time I bough
/archives//html/Amps/2012-03/msg00068.html (7,708 bytes)

3. Re: [Amps] Relay suggestions please (score: 1)
Author: Ed Heimbach <supermechanic18360@yahoo.com>
Date: Fri, 9 Mar 2012 04:18:22 -0800 (PST)
Steve, you might want to take a look at the PCB relays used by Inrad in their antenna switches.  IIRC, they have been tested to 1.5 KW continuous, 30 MHz and at 3:1 load SWR, and the last time I boug
/archives//html/Amps/2012-03/msg00069.html (8,611 bytes)

4. Re: [Amps] Relay suggestions please (score: 1)
Author: Larry Benko <xxw0qe@comcast.net>
Date: Fri, 09 Mar 2012 07:38:08 -0700
Steve, Let's get calibrated: 1.) 1.5kW in a 50 ohm environment is 274Vrms (387V peak) and 5.48Arms. 2.) Add some SWR into the mix (still @ 1500W) and the maximum voltages and currents rise by the squ
/archives//html/Amps/2012-03/msg00070.html (9,391 bytes)

5. Re: [Amps] Relay suggestions please (score: 1)
Author: "Carl" <km1h@jeremy.mv.com>
Date: Fri, 9 Mar 2012 09:48:14 -0500
The rather common 10-13A contact DPDT or 3PDT relays have held up fine in many amps for 30-40 years with no problem. Isolation isnt the greatest at 10M but that wont bother a transceiver. Add a 30-33
/archives//html/Amps/2012-03/msg00071.html (10,418 bytes)

6. Re: [Amps] Relay suggestions please (score: 1)
Author: "Carl" <km1h@jeremy.mv.com>
Date: Fri, 9 Mar 2012 09:48:29 -0500
WHAT antenna switches Pete? I just happened to have the INRAD page open on the other PC and dont see it. Carl KM1H _______________________________________________ Amps mailing list Amps@contesting.co
/archives//html/Amps/2012-03/msg00072.html (9,928 bytes)

7. Re: [Amps] Relay suggestions please (score: 1)
Author: bill ny9h <ny9h@arrl.net>
Date: Fri, 09 Mar 2012 09:54:04 -0500
how about Top Ten Devices.... http://www.qth.com/topten/ bill /3 _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amp
/archives//html/Amps/2012-03/msg00073.html (10,662 bytes)

8. Re: [Amps] Relay suggestions please (score: 1)
Author: Pete Smith N4ZR <n4zr@contesting.com>
Date: Fri, 09 Mar 2012 10:18:26 -0500
Sorry - same guy, different company. TopTen was what I meant. W2VJN was responsible for the design of their 6-way relay box. The ones W2VJN used in the antenna switch are Schrack RTD 14012. See <http
/archives//html/Amps/2012-03/msg00074.html (11,662 bytes)

9. Re: [Amps] Relay suggestions please (score: 1)
Author: Don Kessler <ki6sz@sbcglobal.net>
Date: Fri, 9 Mar 2012 10:20:28 -0500
Larry, I also use "conventional" relays for RF switching. However, while the relay voltage and current handling of "conventional" relays may be sufficient for this purpose, I've found that convention
/archives//html/Amps/2012-03/msg00075.html (11,363 bytes)

10. Re: [Amps] Relay suggestions please (score: 1)
Author: "Jim W7RY" <jimw7ry@gmail.com>
Date: Fri, 9 Mar 2012 07:32:32 -0800
Inrad? Take a look at the relays that Jim W8ZR uses in his station and antenna switches. They work well and are very inexpensive. 73 Jim W7RY _______________________________________________ Amps mail
/archives//html/Amps/2012-03/msg00076.html (10,100 bytes)

11. Re: [Amps] Relay Suggestions Please (score: 1)
Author: "Jim Garland" <4cx250b@muohio.edu>
Date: Fri, 9 Mar 2012 09:28:54 -0700
Interesting comments in this thread. I checked a variety of PCB power relays for my StationPro controller and finally settled on the TE Connectivity/P&B model RTB14012F. (Mouser part number 655-RTB14
/archives//html/Amps/2012-03/msg00077.html (9,795 bytes)

12. Re: [Amps] Relay suggestions please (score: 1)
Author: Vic K2VCO <k2vco.vic@gmail.com>
Date: Fri, 09 Mar 2012 08:47:00 -0800
A failure mode that I've encountered has been with some relays that have the moving arms riveted to an insulating bar made of some form of plastic. RF losses in the plastic cause it to heat, burn and
/archives//html/Amps/2012-03/msg00078.html (11,536 bytes)

13. Re: [Amps] Relay Suggestions Please (score: 1)
Author: "Jeff Blaine" <keepwalking188@yahoo.com>
Date: Fri, 9 Mar 2012 10:56:46 -0600
Steve, I have been using the same relay that Jim mentions also. There are about 50 of them spread out in my antenna system for this or that. My primary operation mode is RTTY contesting at the KW lev
/archives//html/Amps/2012-03/msg00079.html (10,363 bytes)

14. Re: [Amps] Relay suggestions please (score: 1)
Author: "Carl" <km1h@jeremy.mv.com>
Date: Fri, 9 Mar 2012 12:54:56 -0500
That might be why I had regular old P&B DPDT 24VDC relays start to fail after 20 or so years when used on the tower for stack switching. The coils just vibrated but then worked fine on AC when tested
/archives//html/Amps/2012-03/msg00081.html (13,492 bytes)

15. Re: [Amps] Relay suggestions please (score: 1)
Author: Pete Michaelis - N8TR <pete.n8tr@gmail.com>
Date: Fri, 09 Mar 2012 14:23:52 -0500
Actually I believe Top Ten uses the JW1FSN-DC12V relays that W8ZR talked about. See: http://web.archiveorange.com/archive/v/OyAyhiIfrOEGa3Wyk0zq 73 Pete - N8TR _______________________________________
/archives//html/Amps/2012-03/msg00087.html (9,364 bytes)

16. Re: [Amps] Relay Suggestions Please (score: 1)
Author: Steve Thompson <g8gsq72@gmail.com>
Date: Fri, 09 Mar 2012 19:25:17 +0000
Many thanks to all for the inputs, both on and off list. I've plenty to be working with. I've used basic power switching relays for antenna switching in the past but this is for a paying customer who
/archives//html/Amps/2012-03/msg00088.html (8,217 bytes)

17. Re: [Amps] Relay suggestions please (score: 1)
Author: Pete Smith N4ZR <n4zr@contesting.com>
Date: Fri, 09 Mar 2012 15:57:50 -0500
They have used both over the ~20 years the product has been out there, but I think Jim's point about the length of internal conductors is very interesting. 73, Pete N4ZR The World Contest Station Dat
/archives//html/Amps/2012-03/msg00094.html (10,233 bytes)

18. Re: [Amps] Relay suggestions please (score: 1)
Author: Mike Waters <mikewate@gmail.com>
Date: Fri, 9 Mar 2012 17:54:50 -0600
I never would have guessed that teeny little relay would be suitable for an HF legal limit amp! Thank you for that, Jim. Going to order a couple of those soon. 73, Mike www.w0btu.com ________________
/archives//html/Amps/2012-03/msg00099.html (8,218 bytes)

19. Re: [Amps] Relay suggestions please (score: 1)
Author: Mike <mikek4gmh@gmail.com>
Date: Sat, 10 Mar 2012 16:12:58 -0600
Used the P&B ModelRTB1402F in a number of ant. switches without a failure at 1500 RTTY. All the switching is done via latching device to insure no hot switching! 73, Mike, K4GMH an __________________
/archives//html/Amps/2012-03/msg00113.html (9,124 bytes)

20. Re: [Amps] Relay suggestions please (score: 1)
Author: Don Kessler <ki6sz@roadrunner.com>
Date: Fri, 9 Mar 2012 10:16:20 -0500
Larry, I also use "conventional" relays for RF switching. However, while the relay voltage and current handling of "conventional" relays may be sufficient for this purpose, I've found that convention
/archives//html/Amps/2012-03/msg00151.html (12,705 bytes)

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