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Total 7 documents matching your query.

1. [AMPS] amp control (score: 1): Author: carlseye@tampabay.rr.com (carl seyersdahl); Date: Tue, 26 Jun 2001 18:45:01 -0400; In the world of transmitters and amplifiers, it seems it has always been standard procedure to control the amplifier via a relay or other circuit in the transmitter(exciter). In modern solid state ex; /archives//html/Amps/2001-06/msg00284.html (7,634 bytes)
2. [AMPS] amp control (score: 1): Author: shr@ricc.net (W0UN--Signal Hill Ranch); Date: Tue, 26 Jun 2001 17:02:48 -0600; Carl-- Alpha/Power amps can be keyed by the transceiver in the classical way--but they also have keyer input/output lines so you can plug in your KEYER directly into the amp and the amp will then key; /archives//html/Amps/2001-06/msg00285.html (8,933 bytes)
3. [AMPS] amp control (score: 1): Author: na9d@speakeasy.net (Jon Ogden); Date: Tue, 26 Jun 2001 17:59:23 -0500; There is such a device and it is frequently used in VHF/UHF systems. It's called a sequencer. I don't know if anyone has ever adapted them for HF, but what it essentially does is prevent the radio fr; /archives//html/Amps/2001-06/msg00286.html (8,762 bytes)
4. [AMPS] amp control (score: 1): Author: carlseye@tampabay.rr.com (carl seyersdahl); Date: Tue, 26 Jun 2001 21:13:07 -0400; thanks to all who have responded to my question on amplifier control ckts. I am not really all that familiar with most newer amps, only older stuff, such as heathkit amps. I don't have access to much; /archives//html/Amps/2001-06/msg00287.html (7,609 bytes)
5. [AMPS] amp control (score: 1): Author: philk5pc@tyler.net (Phil Clements); Date: Tue, 26 Jun 2001 22:02:25 -0500; The new Alphas were not the first to offer sequenced keying. The 77 series of Alpha amps all featured "reverse keying." This technology has been around since the first high speed vacuum relays hit th; /archives//html/Amps/2001-06/msg00289.html (8,437 bytes)
6. [AMPS] amp control (score: 1): Author: 2@vc.net (2); Date: Tue, 26 Jun 2001 21:11:26 -0700; /\ For SSB/high-speed VOX, adding a VOX, preamp and mic. jacks to an amplifier is a pain in the posterior. Under 2mS relays can be had for approx. $36 - and they can be made quite quiet. cheers, Car; /archives//html/Amps/2001-06/msg00290.html (7,938 bytes)
7. [AMPS] amp control (score: 1): Author: paulc@mediaone.net (Paul Christensen); Date: Wed, 27 Jun 2001 07:43:38 -0400; parts, I'm not sure about the 77-series, but my Alpha PA-70V accommodates high-speed VOX in its "Break-In" mode. The amp remains keyed and the output network is coupled back into a small tuned RF am; /archives//html/Amps/2001-06/msg00293.html (8,504 bytes)

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