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1. [Amps] Amp With A Roller Inductor? (score: 1): Author: Joe <nss@mwt.net>; Date: Mon, 13 Sep 2021 14:36:07 -0500; Here's a Question, Been hitting a dead end. I have had various AMPs all my Ham life, from 1975. But all have been like the SB-220, SB-220, SB-200 FL-2100, Henry 2K etc. Plate cap, load cap, tapped in; /archives//html/Amps/2021-09/msg00007.html (6,905 bytes)
2. Re: [Amps] Amp With A Roller Inductor? (score: 1): Author: Steven Katz <stevek@jmr.com>; Date: Mon, 13 Sep 2021 20:10:53 +0000; I've had various Henry amps with edge-wound roller inductors as the primary PLATE tuning mechanism. My last one, a Henry 3K Premier, used that. It used plunger-switch selected (activated by cams on a; /archives//html/Amps/2021-09/msg00008.html (8,078 bytes)
3. Re: [Amps] Amp With A Roller Inductor? (score: 1): Author: RCM <robrk@nidhog.net>; Date: Mon, 13 Sep 2021 17:09:44 -0400; You do the math or measure the coils inductance and per the plate load impedance, pick your taps. You will be using a turns counter dial. Write down the numbers for each band. Chart on panel. Do tun; /archives//html/Amps/2021-09/msg00009.html (9,035 bytes)
4. Re: [Amps] Amp With A Roller Inductor? (score: 1): Author: "Joe Subich, W4TV" <lists@subich.com>; Date: Mon, 13 Sep 2021 18:05:42 -0400; Depends on whether the amplifier has a band switch which selects fixed "Tune" capacitors for each band or a continuously variable "Tune" cap. In the former case, one uses the inductor the same way o; /archives//html/Amps/2021-09/msg00010.html (8,260 bytes)

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