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1. [Amps] FT-990 keying TL-922? (score: 1): Author: djones449 at cogeco.ca (David Jones); Date: Tue Jan 21 21:02:31 2003; Hi all, This weekend, two of us will be keying a TL-922 (his) with an FT-990 (mine) for this one time only in the CQ160. Just want to be sure I'm reading the manual correctly.... 1) What is the t/r k; /archives//html/Amps/2003-01/msg00176.html (6,814 bytes)
2. [Amps] FT-990 keying TL-922? (score: 1): Author: dhearn at ix.netcom.com (Dan); Date: Tue Jan 21 22:02:58 2003; The 922 t/r relay circuit is 100V and 40ma. If your 990 can output +12 v on xmit, you can use a power NPN transistor to switch the 922 line to ground. Collector to the 922 rly line, emitter to gnd an; /archives//html/Amps/2003-01/msg00177.html (7,773 bytes)
3. [Amps] FT-990 keying TL-922? (score: 1): Author: dhearn at ix.netcom.com (Dan); Date: Tue Jan 21 22:32:51 2003; OOPS. Should have said the voltage divider connects to the power transistor base. You might try 3k in series to the base and 1k base to gnd . 73, Dan, N5AR -- Original Message -- From: David Jones <d; /archives//html/Amps/2003-01/msg00178.html (7,635 bytes)

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