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1. [Amps] GE EF-5A VHF Amplifier (score: 1): Author: Xmitters@aol.com; Date: Thu, 26 Jan 2006 13:58:46 EST; Hello Again :-) I have a General Electric EF-5A VHF power amplifier. I think it is Progress Line or Mastr Progress Line vintage, not sure. Every one of these amplifiers I have seen at hamfests a few; /archives//html/Amps/2006-01/msg00617.html (8,234 bytes)
2. Re: [Amps] GE EF-5A VHF Amplifier (score: 1): Author: TexasRF@aol.com; Date: Thu, 26 Jan 2006 14:16:16 EST; Is the required 25 to 50 ohms current limiting resistor installed in series with the B+ to the tube? 73, Gerald K5GW In a message dated 1/26/2006 12:59:49 P.M. Central Standard Time, Xmitters@aol.com; /archives//html/Amps/2006-01/msg00618.html (8,537 bytes)
3. Re: [Amps] GE EF-5A VHF Amplifier (score: 1): Author: "RICHARD GEORGE" <k6kwq@msn.com>; Date: Thu, 26 Jan 2006 11:25:37 -0800; Put some back to back diodes on the meter. at least you will save the meter on flash over. K6KWQ Dick "12 Volt radios are for wimps, real radios can kill you" Still can't make it go QRO with "More Po; /archives//html/Amps/2006-01/msg00619.html (9,190 bytes)
4. Re: [Amps] GE EF-5A VHF Amplifier (score: 1): Author: Ian White GM3SEK <gm3sek@ifwtech.co.uk>; Date: Thu, 26 Jan 2006 21:40:39 +0000; Is the screen voltage of this amplifier stabilized against both positive and negative screen currents? It could be screen voltage runaway caused by negative screen current, to which the 4CX250B is ve; /archives//html/Amps/2006-01/msg00620.html (9,812 bytes)

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