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Total 7 documents matching your query.

1. [Amps] Modern rig amplifier keying (score: 1)
Author: Stan Gammons <s_gammons@charter.net>
Date: Thu, 18 Jul 2019 20:46:42 -0500
How much voltage will modern rigs tolerate on the keying circuit? I have an older amp that has a 12 volt relay. Will that fry the keying circuit of a modern rig? 73 Stan KM4HQE ______________________
/archives//html/Amps/2019-07/msg00010.html (6,880 bytes)

2. Re: [Amps] Modern rig amplifier keying (score: 1)
Author: gudguyham--- via Amps <amps@contesting.com>
Date: Sat, 20 Jul 2019 13:43:14 +0000 (UTC)
Stan, most if not all radio manuals indicate what the amplifier keying specs are of the radio.  They vary among different radios depending on if they are transistor keying or relay keying.  As a rule
/archives//html/Amps/2019-07/msg00014.html (8,424 bytes)

3. Re: [Amps] Modern rig amplifier keying (score: 1)
Author: Glen Zook via Amps <amps@contesting.com>
Date: Sat, 20 Jul 2019 14:34:21 +0000 (UTC)
Having 12-volts on the keying circuit (actually, usually, 13.8-volts) is very common and I don't know of any "modern" transceiver that cannot handle the voltage. Glen, K9STH  Website: https://k9sth.n
/archives//html/Amps/2019-07/msg00017.html (8,117 bytes)

4. Re: [Amps] Modern rig amplifier keying (score: 1)
Author: Jim <jimw7ry@gmail.com>
Date: Sun, 21 Jul 2019 06:59:42 -0500
That should be fine. Thanks 73 Jim W7RY 73 Stan KM4HQE _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps ________
/archives//html/Amps/2019-07/msg00019.html (7,643 bytes)

5. Re: [Amps] Modern rig amplifier keying (score: 1)
Author: Stan Gammons <s_gammons@charter.net>
Date: Sat, 20 Jul 2019 10:54:52 -0500
Hi Lou, The relay coil draws right at 100 milliamps at 13.8 volts.  Will check the manual to see if it will handle that. Thanks for the useful comments from others. 73 Stan KM4HQE On 7/20/2019 8:43 A
/archives//html/Amps/2019-07/msg00020.html (8,902 bytes)

6. Re: [Amps] Modern rig amplifier keying (score: 1)
Author: donroden@hiwaay.net
Date: Sun, 21 Jul 2019 10:04:06 -0500
Your modern rig instruction manual should have the numbers you are looking for. Maximum current is just as important as maximum voltage. If your rig uses an open collector transistor instead of a rel
/archives//html/Amps/2019-07/msg00021.html (8,681 bytes)

7. Re: [Amps] Modern rig amplifier keying (score: 1)
Author: "Carl" <km1h@jeremy.qozzy.com>
Date: Sun, 21 Jul 2019 15:10:12 -0400
A few earliy Icoms couldnt unless it was current limiited, their switching transistor was a wimp. Carl Having 12-volts on the keying circuit (actually, usually, 13.8-volts) is very common and I don't
/archives//html/Amps/2019-07/msg00023.html (9,298 bytes)

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