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References: [ +from:sm0aom@telia.com: 206 ]

Total 206 documents matching your query.

201. Re: [Amps] Impedance Match Calculator (score: 1)
Author: "sm0aom@telia.com" <sm0aom@telia.com>
Date: Sat, 2 Feb 2019 18:18:24 +0100 (CET)
The easiest is to use the Smith chart. Plot the olad impedance as series equivalents. Working from the load towards the generator, add series inductance along the constant impedance circle so the new
/archives//html/Amps/2019-02/msg00006.html (9,124 bytes)

202. Re: [Amps] Question about grid current in 4CX or 3CX (score: 1)
Author: "sm0aom@telia.com" <sm0aom@telia.com>
Date: Mon, 18 Mar 2019 15:53:08 +0100 (CET)
Usually the Class C grid current decreases somewhat when the plate and screen voltages are applied, due to more electrons are drawn away from the grid. The actual grid dissipation can be estimated as
/archives//html/Amps/2019-03/msg00035.html (10,286 bytes)

203. Re: [Amps] Push pull amps (score: 1)
Author: "sm0aom@telia.com" <sm0aom@telia.com>
Date: Sat, 1 Aug 2020 23:34:49 +0200 (CEST)
Easier cross-neutralisation has been mentioned, but another major argument for push-pull, especially at higher frequencies, is that it becomes easier to get the proper L/C ratio as the circuit tuning
/archives//html/Amps/2020-08/msg00008.html (8,893 bytes)

204. Re: [Amps] 300Hz sidebands (score: 1)
Author: "sm0aom@telia.com" <sm0aom@telia.com>
Date: Sun, 23 May 2021 19:53:22 +0200 (CEST)
I would suggest checking both the choke and the capacitor, If there has been a short in the overvoltage protector across the choke, it would be out of the circuit. Without the choke, the ripple incre
/archives//html/Amps/2021-05/msg00048.html (9,518 bytes)

205. Re: [Amps] 300Hz sidebands (score: 1)
Author: "sm0aom@telia.com" <sm0aom@telia.com>
Date: Sun, 23 May 2021 20:51:52 +0200 (CEST)
On the schematic a choke, Dr 401, is shown between the six-pulse bridge and the filter capacitor. It is bridged by an overvoltage protector. As you do not generate the screen voltage from the plate s
/archives//html/Amps/2021-05/msg00051.html (11,055 bytes)

206. Re: [Amps] 300Hz sidebands (score: 1)
Author: "sm0aom@telia.com" <sm0aom@telia.com>
Date: Wed, 26 May 2021 13:02:22 +0200 (CEST)
Yes, a sense of perspective and proportions always helps. A lot of current amateur gear show quite atrocious adjacent channel performance, especially in the hands of the "all knobs to the right" crow
/archives//html/Amps/2021-05/msg00062.html (11,352 bytes)

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