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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Amps\]\s+Amp\s+Supply\s+LK\-550\s+\(550\)\s+need\s+replace\s+inrush\s+module\'s\s+resistor\s*$/: 6 ]

Total 6 documents matching your query.

1. Re: [Amps] Amp Supply LK-550 (550) need replace inrush module's resistor (score: 1)
Author: wb0gaz via Amps <amps@contesting.com>
Date: Thu, 12 Oct 2023 23:53:43 +0000 (UTC)
Rob - You are correct in your assessment. It turns out the LK-550's step-start circuit is a small PC board which includes the (missing) high power resistor (I have a 25 ohm, 25 watt ceramic as a subs
/archives//html/Amps/2023-10/msg00030.html (9,202 bytes)

2. Re: [Amps] Amp Supply LK-550 (550) need replace inrush module's resistor (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Fri, 13 Oct 2023 05:25:20 -0500
Looks like you have the fix well in hand. I'll bet the stock carbon comp. resistor was underrated and eventually gave out. It took a long time but it eventually happened. I tend to engage in overkill
/archives//html/Amps/2023-10/msg00031.html (7,867 bytes)

3. [Amps] Amp Supply LK-550 (550) need replace inrush module's resistor (score: 1)
Author: "jim.thom jim.thom@telus.net" <jim.thom@telus.net>
Date: Fri, 13 Oct 2023 08:46:17 -0700
Looks like you have the fix well in hand. I'll bet the stock carbon comp. resistor was underrated and eventually gave out. It took a long time but it eventually happened. I tend to engage in overkill
/archives//html/Amps/2023-10/msg00032.html (8,725 bytes)

4. Re: [Amps] Amp Supply LK-550 (550) need replace inrush module's resistor (score: 1)
Author: "jim.thom jim.thom@telus.net" <jim.thom@telus.net>
Date: Fri, 13 Oct 2023 19:53:49 -0700
Rob, what I used was a PAIR of 30 amp rated, DPST relays, Like P+B types, in an external 8x8x4 standard metal electrical box...with loads of knockouts (home depot). 1st relay is used to apply the 240
/archives//html/Amps/2023-10/msg00033.html (9,309 bytes)

5. Re: [Amps] Amp Supply LK-550 (550) need replace inrush module's resistor (score: 1)
Author: Roy via Amps <amps@contesting.com>
Date: Sat, 14 Oct 2023 08:13:51 -0500
My LK-500ZB now has two power cords. One plugs into 240vac, and the other into 120vac. A DPDT heavy duty toggle switch selects the 120vac for turn on, then snaps to 240vac for operation. Works perfec
/archives//html/Amps/2023-10/msg00034.html (7,727 bytes)

6. Re: [Amps] Amp Supply LK-550 (550) need replace inrush module's resistor (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Sun, 15 Oct 2023 04:56:48 -0500
These simple solutions are often the best and most reliable. Thanks for sharing your ideas Jim. 73 Rob K5UJ _______________________________________________ Amps mailing list Amps@contesting.com http
/archives//html/Amps/2023-10/msg00035.html (7,763 bytes)


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