- 1. [Amps] MFJ-(AMERITRON) ROLLER INDUCTOR? (score: 1)
- Author: nemo zilch <nemozilch@gmail.com>
- Date: Sat, 24 Sep 2016 13:55:01 -0400
- I am going to build an amp using a single GS-35B, 3800 volts, 600mA. I am thinking of using the Ameritron roller inductor sold by MFJ. It is on page 86 of their current catalog. It is edge wound, sil
- /archives//html/Amps/2016-09/msg00112.html (7,260 bytes)
- 2. Re: [Amps] MFJ-(AMERITRON) ROLLER INDUCTOR? (score: 1)
- Author: "Jeff AC0C" <keepwalking188@ac0c.com>
- Date: Sun, 25 Sep 2016 18:42:05 -0500
- Bob, Been there, done it, wish I had not. A roller ends up giving you a lot of odd resonance points which can make you just crazy especially on the high bands. The Q of the roller is generally poor c
- /archives//html/Amps/2016-09/msg00116.html (8,615 bytes)
- 3. Re: [Amps] MFJ-(AMERITRON) ROLLER INDUCTOR? (score: 1)
- Author: "Hardy Landskov" <n7rt@cox.net>
- Date: Mon, 26 Sep 2016 19:22:26 -0400
- Jeff, Don't use a roller inductor. There are no real benefits. The matching boxes I have built with roller inductors are noisey, sound dead until power is applied,--they are a PITA. IMHO. 73 Hardy N7
- /archives//html/Amps/2016-09/msg00126.html (9,521 bytes)
- 4. Re: [Amps] MFJ-(AMERITRON) ROLLER INDUCTOR? (score: 1)
- Author: "Dale LeStourgeon" <dlestourgeon@cox.net>
- Date: Mon, 26 Sep 2016 19:25:46 -0500
- Bob, This is a little different response. I built an almost exact copy of the DX-811A amp from the Sep 82 CQ magazine. It uses a roller inductor that only goes to 80M, but it works beautifully--and i
- /archives//html/Amps/2016-09/msg00128.html (10,067 bytes)
- 5. Re: [Amps] MFJ-(AMERITRON) ROLLER INDUCTOR? (score: 1)
- Author: Catherine James <catherine.james@att.net>
- Date: Thu, 29 Sep 2016 14:42:24 +0000 (UTC)
- I have been happy with the performance of the roller inductor in my ATR-30. While I can see that contacts may hold up better long-term in a switched inductor, the performance of the rollers seems to
- /archives//html/Amps/2016-09/msg00135.html (8,217 bytes)
- 6. Re: [Amps] MFJ-(AMERITRON) ROLLER INDUCTOR? (score: 1)
- Author: Glen Zook via Amps <amps@contesting.com>
- Date: Thu, 29 Sep 2016 15:04:41 +0000 (UTC)
- The Henry / Tempo 2001 linear amplifier uses a roller inductor as the plate tuning instead of the "normal" variable capacitor tuning. It has fixed capacitors that are band switched instead of switch
- /archives//html/Amps/2016-09/msg00137.html (10,334 bytes)
- 7. Re: [Amps] MFJ-(AMERITRON) ROLLER INDUCTOR? (score: 1)
- Author: Tom Osborne <w7why@frontier.com>
- Date: Thu, 29 Sep 2016 20:15:45 -0700
- I use an MFJ 989C tuner with a roller inductor and have never had a problem with it. I run about 6-700 watts with an 811H amp. I have an 962C 'kw tuner' and have blown the bandswitch out twice. For m
- /archives//html/Amps/2016-10/msg00005.html (7,927 bytes)
- 8. Re: [Amps] MFJ-(AMERITRON) ROLLER INDUCTOR? (score: 1)
- Author: Bill Turner <dezrat@outlook.com>
- Date: Sat, 1 Oct 2016 18:23:08 +0000
- -- ORIGINAL MESSAGE --(may be snipped) REPLY: Better yet, trim your antennas down to a 3:1 SWR or better and get an amp such as an Alpha 9500 that can handle SWR up to 3:1. Nary a tuner in sight at m
- /archives//html/Amps/2016-10/msg00012.html (7,782 bytes)
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