- 1. [Amps] DEMI W2GN 144-2HP Amplifier Kit (score: 1)
- Author: Byron Tatum <bjtatum1@att.net>
- Date: Tue, 4 Feb 2020 04:29:53 +0000 (UTC)
- Just by chance- Myself and a few friends that have built the W2GN style amplifiers over the years, and have nostalgic interests in these, are searching for anyone that may have for sale one of
- /archives//html/Amps/2020-02/msg00007.html (6,820 bytes)
- 2. [Amps] NOS Eimac YU209 (8877) for sale (score: 1)
- Author: Byron Tatum <bjtatum1@att.net>
- Date: Sat, 14 Nov 2020 13:55:45 +0000 (UTC)
- Hello- I wish to sell a NOS Eimac YU209 tube in order to use the funds to purchase other Ham equipment. The YU209 is a very desirable variant of the 3CX1500A7/8877, made for the broadcast industry
- /archives//html/Amps/2020-11/msg00002.html (7,062 bytes)
- 3. [Amps] Various HF amplifiers for sale (score: 1)
- Author: Byron Tatum <bjtatum1@att.net>
- Date: Sun, 6 Jun 2021 13:14:59 +0000 (UTC)
- Just a note - Phil W5BVB is selling amplifiers from the estate of Don K5AAD. There are some 30L1's, some Alphas and others. Phil can be reached at 281-910-2763, he is located south of Houston in
- /archives//html/Amps/2021-06/msg00001.html (6,506 bytes)
- 4. [Amps] Triode metering circuitry (score: 1)
- Author: Byron Tatum <bjtatum1@att.net>
- Date: Thu, 6 Jan 2022 02:19:04 +0000 (UTC)
- Hello- Possibly someone can shed some light on this for me. Previous years I built the K1AGB 144 Mhz 8877 stripline amplifier. I duplicated the QST article very closely and used the exact same mete
- /archives//html/Amps/2022-01/msg00031.html (7,975 bytes)
- 5. [Amps] 0-5 KV meter needed (score: 1)
- Author: Byron Tatum <bjtatum1@att.net>
- Date: Thu, 6 Jan 2022 05:29:24 +0000 (UTC)
- Hello- I am in need of a 0-5 KV DC scaled meter with a 1 mA movement in a 3" round black case. I am building an amplifier control circuit and am using 3" round Weston 301 and 1531 series meters. O
- /archives//html/Amps/2022-01/msg00035.html (6,612 bytes)
- 6. [Amps] Centrifugal Blowers (score: 1)
- Author: Byron Tatum <bjtatum1@att.net>
- Date: Thu, 27 Jan 2022 00:11:39 +0000 (UTC)
- Hello- Anyone in our group have knowledge of replacing the motor on a centrifugal cooling blower? I have been rebuilding a few RF decks made in the 1970's by Scientific Radio for the SR-416A transm
- /archives//html/Amps/2022-01/msg00097.html (7,683 bytes)
- 7. [Amps] Centrifugal Blowers (score: 1)
- Author: Byron Tatum <bjtatum1@att.net>
- Date: Thu, 27 Jan 2022 15:03:24 +0000 (UTC)
- Thanks Guys- I appreciate all the suggestions on repairing my blowers. The units I have are Kooltronics KBB47-5 with a motor #7162-0802. This motor is 3400 RPM at 60 Hz. I am looking for a lower s
- /archives//html/Amps/2022-01/msg00102.html (7,804 bytes)
- 8. [Amps] 8877 Grid Current (score: 1)
- Author: Byron Tatum <bjtatum1@att.net>
- Date: Thu, 27 Jan 2022 15:31:54 +0000 (UTC)
- Hello- I am commissioning a newly built 144 Mhz 8877 amplifier and am seeking advice on grid current. My tube is a known good, low hours Eimac YU-209. The amplifier is the W6PO design. I rebuilt a
- /archives//html/Amps/2022-01/msg00103.html (9,165 bytes)
- 9. Re: [Amps] transformer identification (score: 1)
- Author: Byron Tatum <bjtatum1@att.net>
- Date: Tue, 15 Nov 2022 01:14:05 +0000 (UTC)
- A note- Try webpages such as Patrick's site "Bunker of Doom" for the older transformer catalogs.Byron W5FH On Monday, November 14, 2022 at 04:32:38 PM CST, Joe Subich, W4TV <lists@subich.com> wrote
- /archives//html/Amps/2022-11/msg00020.html (8,275 bytes)
- 10. [Amps] 8877 Warm-Up Period (score: 1)
- Author: Byron Tatum <bjtatum1@att.net>
- Date: Mon, 23 Jan 2023 22:01:43 +0000 (UTC)
- Hello All Fellow Amp Builders- I agree that it is best to allow the 8877 adaquate warm-up time ahead of the application of high voltage, even when in full cut-off (of course). But equally importan
- /archives//html/Amps/2023-01/msg00026.html (7,744 bytes)
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