- 1. [Amps] LK-800A (score: 1)
- Author: "John Coleman, ARS WA5BXO" <wa5bxo@pctechref.com>
- Date: Wed, 12 Jan 2005 20:37:01 -0600
- Does any one know about a LK-800A by Amp Supply. It has 3 forced air cooled 800 watt plate dissipation, ceramic tubes, I think. It has some sort of a delay circuit to keep idiots from applying drive
- /archives//html/Amps/2005-01/msg00234.html (6,659 bytes)
- 2. RE: [Amps] LK-800A (score: 1)
- Author: "John Coleman, ARS WA5BXO" <wa5bxo@pctechref.com>
- Date: Wed, 12 Jan 2005 21:40:53 -0600
- Thanks for looking guys. The Bama site schematic is what I have and it doesn't detail the 180 sec timer circuit and Omega wants us to send it in for repair. I guess I'll try reverse engineering a dia
- /archives//html/Amps/2005-01/msg00237.html (10,408 bytes)
- 3. RE: [Amps] Plate choke magic? (score: 1)
- Author: "John Coleman" <wa5bxo@pctechref.com>
- Date: Fri, 28 Jan 2005 19:57:49 -0600
- A Plate RF choke always has some resonances. The idea is to keep the resonances in low Q by having low capacitance between windings, hence the occasional spacing. "High-Q" resonance at a harmonic of
- /archives//html/Amps/2005-01/msg00552.html (8,939 bytes)
- 4. [Amps] RE: LK800 (score: 1)
- Author: "John Coleman" <wa5bxo@pctechref.com>
- Date: Mon, 31 Jan 2005 10:44:12 -0600
- Thanks Joni, The Amp belongs to Dennis, KT5S and he was having trouble getting the ready light to come on. We found and intermittent cold solder connection on the HV Rectifier board. The ANODE connec
- /archives//html/Amps/2005-01/msg00644.html (7,804 bytes)
- 5. Re: [Amps] Measuring RF Power (score: 1)
- Author: "John Coleman" <wa5bxo@pctechref.com>
- Date: Mon, 21 Mar 2005 17:39:43 -0600
- A number of years ago I came up with a very accurate method of measuring the power on a heath kit "cantenna" dummy load. They had a piece of junk circuit in a box on the top for some relative meterin
- /archives//html/Amps/2005-03/msg00473.html (9,419 bytes)
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