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Total 8 documents matching your query.

1. [AMPS] AL 572 (score: 1): Author: ve6tp@direct.ca (Tru Perry); Date: Sun, 15 Mar 1998 20:45:31 -0000; I am looking for input on the performance/evaluation of the Ameritron AL 572 Amplifier. It is still fairly new and I have not heard anything (positive or negitive) on this equipment. I would apprecia; /archives//html/Amps/1998-03/msg00308.html (6,708 bytes)
2. [Amps] Al 572 (score: 1): Author: "larry williamson" <lgwsaw@worldnet.att.net>; Date: Tue, 21 Dec 2004 22:02:48 -0700; Sorry I did not say the kind of amp.... It is a AL 572... Only about 8 months old. I just tonight installed the new 51 ohm resistor and one new tube form ameritron. Only tried about a 10 minute chat; /archives//html/Amps/2004-12/msg00250.html (6,975 bytes)
3. Re: [Amps] Al 572 (score: 1): Author: Joe Isabella <n3ji@yahoo.com>; Date: Tue, 21 Dec 2004 21:08:18 -0800 (PST); Okay... There *ARE* issues with 572Bs -- I'm not an expert on those, though. I've always had 3-500s. Good luck!! larry williamson <lgwsaw@worldnet.att.net> wrote: Sorry I did not say the kind of amp.; /archives//html/Amps/2004-12/msg00251.html (7,144 bytes)
4. Re: [Amps] Al 572 (score: 1): Author: wb8jkr@juno.com; Date: Wed, 22 Dec 2004 04:48:38 -0500; Don't know where they're made, but I've used the TAYLOR 572-B's here in a SB-200 for a few years and have had no trouble at all. Have also used them as replacements for others amplifiers on a few occ; /archives//html/Amps/2004-12/msg00252.html (8,036 bytes)
5. Re: [Amps] Al 572 (score: 1): Author: R.Measures <r@somis.org>; Date: Wed, 22 Dec 2004 05:56:15 -0800; On Dec 21, 2004, at 9:02 PM, larry williamson wrote: Sorry I did not say the kind of amp.... It is a AL 572... Only about 8 months old. I just tonight installed the new 51 ohm resistor and one new tu; /archives//html/Amps/2004-12/msg00254.html (7,754 bytes)
6. Re: [Amps] Al 572 (score: 1): Author: "Steven Grant, W4IIV" <stevengrant98@yahoo.com>; Date: Wed, 22 Dec 2004 07:19:34 -0800 (PST); it does have a neutralization circuit steven Larry -- Does the AL-572 have a neutralization circuit? Tnx Richard L. Measures, AG6K, 805.386.3734. www.somis.org _______________________________________; /archives//html/Amps/2004-12/msg00256.html (8,706 bytes)
7. Re: [Amps] Al 572 (score: 1): Author: R.Measures <r@somis.org>; Date: Wed, 22 Dec 2004 09:26:21 -0800; Tnx, Steven -- This is the same kind of neutralizing circuit that both Gonset and Heath tried in their 4, 811A amplifiers and both promptly abandoned because it increased VHF squirreliness. - The got; /archives//html/Amps/2004-12/msg00263.html (8,362 bytes)
8. Re: [Amps] Al 572 (score: 1): Author: "Steven Grant, W4IIV" <stevengrant98@yahoo.com>; Date: Wed, 22 Dec 2004 11:52:24 -0800 (PST); this circuit may keep the tubes from oscillating at the operating frequency, but i fail to see how this can avoid VHF oscillations, since these components would have no affects there......too much in; /archives//html/Amps/2004-12/msg00267.html (9,230 bytes)

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