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1. [AMPS] SB-220 High input SWR and transceiver fold back (score: 1): Author: johndb@dbtechnet.com (John den Boer); Date: Wed, 21 Feb 2001 05:30:34 -0800; I have been having a problem with my FT-847 transceiver output power being folded back when driving a SB-220 in SSB mode due to erratic SB-220 input SWR. The input SWR of the amplifier is varying bet; /archives//html/Amps/2001-02/msg00284.html (8,617 bytes)
2. [AMPS] SB-220 High input SWR and transceiver fold back (score: 1): Author: johndb@dbtechnet.com (John den Boer); Date: Wed, 21 Feb 2001 05:52:27 -0800; Does this happen on all bands? It certainly doesn't sound normal. When you say "on CW" do you mean with the amplifier in CW position? What happens if you run the xcvr in CW but the amp in SSB positio; /archives//html/Amps/2001-02/msg00286.html (9,109 bytes)
3. [AMPS] Problem with SB-220 Bias Diodes (score: 1): Author: johndb@dbtechnet.com (John den Boer); Date: Sat, 2 Sep 2000 04:55:28 -0700; I would like to thank all of the people who answered my original post specially Richard Measures and Tom Rouch. The information presented was enlightening and informative albeit a bit confusing at ti; /archives//html/Amps/2000-09/msg00053.html (10,431 bytes)
4. [AMPS] Problem with SB-220 Bias Diodes (score: 1): Author: johndb@dbtechnet.com (John den Boer); Date: Wed, 30 Aug 2000 19:16:25 -0700; I need some advice and insight from the amplifier gurus in this group. I have a Heathkit SB-220 which I purchased two years ago. I upgraded the linear with Harbach's mods (Sorry Rich) as follows: 1.; /archives//html/Amps/2000-08/msg00557.html (9,868 bytes)

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