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1. [AMPS] Re: Neutralization 572Bs (score: 1): Author: jmellis@ihug.co.nz (Martin Ellis); Date: Sat, 23 May 1998 14:20:09 +1200; Good morning, In the early 1980s I had a bad case of instability on 10M in a FL2100B which uses a pair of 572Bs. My elmer was Ray ZL1GG (one grounded-grid), who gave me a copy of the FL2100z circuit.; /archives//html/Amps/1998-05/msg00509.html (7,864 bytes)
2. [AMPS] Re: Neutralization 572Bs (score: 1): Author: w8ji.tom@MCIONE.com (Tom Rauch); Date: Fri, 22 May 1998 23:22:24 +0000; To: <amps@contesting.com> GM Martin, Phase shift is only 180 degrees when the pi- network has a very high Q. If the Q is the minimum to match the anode to the load, phase shift is 90 degrees. Normal; /archives//html/Amps/1998-05/msg00512.html (7,931 bytes)

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