I have the Fairchild data sheets and some of the 923 RTL J-K flip-flops, probably about the same date code as was used in the Drake receivers, I throw nothing away.
Mike W6MXV From: Fred or Ski Sent: Thursday, February 28, 2013 9:28 PM To: drakelist Subject: [Drakelist] R4B xtal calibrator ic.... I am working on my R4B crystal calibrator and the schematic doesn't show the two ICs very well, used for counting down the 100 kc crystal frequency. They are listed as a 923 J-K Flip-flop which are both no longer available. I think NTE had them as a 9923. Does anyone have the 923 in a better more defined description? In the manual, the diagram for the calibrator doesn't show components either, so the foil side of the board doesn't make it very easy to trace out the circuit. Garey, does your CD have it shown in a better more defined display someplace? Thanks guys, Ski-WB8YXI -------------------------------------------------------------------------------- _______________________________________________ Drakelist mailing list [email protected] http://mailman.zerobeat.net/mailman/listinfo/drakelist
_______________________________________________ Drakelist mailing list [email protected] http://mailman.zerobeat.net/mailman/listinfo/drakelist
