- 1. [TenTec] Rare FR-4 Filter? (score: 1)
- Author: n4lq@iglou.com (Steve Ellington)
- Date: Mon, 15 Sep 1997 21:22:28 -0400
- I have a Ten-Tec model FR-4 audio filter here. It uses the sam case as the KR-40 keyer. The front panel has an IN/OUT switch, phone jack and min/max control. On the back is a short cord with a phone
- /archives//html/TenTec/1997-09/msg00093.html (7,016 bytes)
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