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Total 5 documents matching your query.

1. [Amps] QRO HF2000 plate choke (score: 1): Author: John Keating <john.keating@outlook.com>; Date: Tue, 2 Nov 2021 02:24:53 +0000; Looking for a photo of the stock plate choke for a QRO Technologies HF2000 amp. Wondering about number of turns, spacing etc. Archived photos from the old QRO website don't show enough detail to copy; /archives//html/Amps/2021-11/msg00000.html (6,143 bytes)
2. [Amps] QRO HF2000 plate choke (score: 1): Author: Rob Atkinson <ranchorobbo@gmail.com>; Date: Tue, 2 Nov 2021 05:03:46 -0500; Please tell us what these problems are exactly. Rob K5UJ _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps; /archives//html/Amps/2021-11/msg00001.html (6,523 bytes)
3. Re: [Amps] QRO HF2000 plate choke (score: 1): Author: Kurt Cathcart <kurt@kuhlroad.net>; Date: Tue, 2 Nov 2021 09:25:01 -0400; I'm not an engineer but I do have an HF-2000. If you can tell me which is the plate choke, I'll send you all the pictures that you want. -Kurt, KR2C AI6LY ___________________________________________; /archives//html/Amps/2021-11/msg00002.html (7,934 bytes)
4. Re: [Amps] QRO HF2000 plate choke (score: 1): Author: John Keating <john.keating@outlook.com>; Date: Tue, 2 Nov 2021 13:53:31 +0000; Apparently a resonance. There is a burn mark in the center coil section after keying down on 28.425. It did not fry the coil but you could smell it immediately. Please tell us what these problems are; /archives//html/Amps/2021-11/msg00003.html (7,660 bytes)
5. Re: [Amps] QRO HF2000 plate choke (score: 1): Author: Rob Atkinson <ranchorobbo@gmail.com>; Date: Tue, 2 Nov 2021 10:10:17 -0500; Okay it looks as if you'll have to modify your choke. Here's a useful guide on how to do that. https://www.w8ji.com/rf_plate_choke.htm You can get a pretty good look at what the stock choke looked li; /archives//html/Amps/2021-11/msg00004.html (8,085 bytes)

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