- 1. [Amps] SB 200 input network rework? (score: 1)
- Author: paule@sfu.ca (paule@sfu.ca)
- Date: Sat, 01 Jun 2002 11:36:13 PDT
- Has anyone reworked the input network to allow it to be more easily driven by a solid state transciever? I'm hoping to avoid reinventing the wheel, if possible? cheers, Paul - VA7NT ex VE7CQK - email
- /archives//html/Amps/2002-06/msg00008.html (6,817 bytes)
- 2. [Amps] SB 200 input network rework? (score: 1)
- Author: dhb@attbi.com (Dave, AA6YQ)
- Date: Sat, 1 Jun 2002 16:02:52 -0400
- I have an SB221 that was missing a 10m input network; I also wanted 12m and 17m input networks to better match a solid-state driver on those bands. To get the extra bandswitch positions, I replaced t
- /archives//html/Amps/2002-06/msg00009.html (8,120 bytes)
- 3. [Amps] SB 200 input network rework? (score: 1)
- Author: dhb@attbi.com (Dave, AA6YQ)
- Date: Sat, 1 Jun 2002 16:50:59 -0400
- Correction -- the 3-500Z amp project is described on page 13.29 of the 1996 ARRL Handbook. 73, Dave, AA6YQ I have an SB221 that was missing a 10m input network; I also wanted 12m and 17m input networ
- /archives//html/Amps/2002-06/msg00010.html (8,723 bytes)
- 4. [Amps] SB 200 input network rework? (score: 1)
- Author: 2@mail.vcnet.com (Richard)
- Date: Sat, 1 Jun 2002 16:31:14 -0700
- The problem is too low of a Q. Decrease Xc (more pF) of the input cap to 18 - 25 ohms on each band, tune by reducing L and increasing the output C until swr of is under 1.2 to 1. - R. L. Measures, a
- /archives//html/Amps/2002-06/msg00012.html (6,981 bytes)
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