- 1. [Amps] FW: Tuned input (score: 1)
- Author: "Phil Clements" <philc@texascellnet.com>
- Date: Tue, 24 Jan 2006 12:38:11 -0600
- If one wants to depart from the traditional Pi input network a parallel L/C configuration can be utilized. A tapped fixed inductor from the cathode(s) to ground, shunted by 300 pf Arco trimmers for
- /archives//html/Amps/2006-01/msg00581.html (8,027 bytes)
- 2. Re: [Amps] FW: Tuned input (score: 1)
- Author: Roger D Johnson <n1rj@adelphia.net>
- Date: Tue, 24 Jan 2006 13:51:09 -0500
- This would work fine when the input Z is near 50 Ohms (which most are). I think you would need a lot more than 300 pf to get the proper Q on the lower bands. 73, Roger -- Remember the USS Liberty (AG
- /archives//html/Amps/2006-01/msg00582.html (6,924 bytes)
- 3. Re: [Amps] FW: Tuned input (score: 1)
- Author: "Phil Clements" <philc@texascellnet.com>
- Date: Tue, 24 Jan 2006 14:43:54 -0600
- The two tube kit for the Alpha 77SX included a 2:1 unun transformer to be inserted in series with the input line. This matches the 50 ohms out of the input tank to the 25 ohm impedance of a pair of
- /archives//html/Amps/2006-01/msg00586.html (8,077 bytes)
This search system is powered by
Namazu