| To: | <Topband@contesting.com> |
|---|---|
| Subject: | Topband: Cores and switches |
| From: | "Tod - ID" <tao@skypoint.com> |
| Date: | Mon, 17 Nov 2003 22:02:25 -0600 |
| List-post: | <mailto:topband@contesting.com> |
When we are using these cores for receiving, why don't we simply use latching relays --I do. A single, short, relatively high (40 ma) pulse is enough to switch the relay state and after that little or no current is required. By charging a large capacitor to supply the current and using a series resistor to drop the voltage to the capacitor one can dump the charge, switch the relay and limit the resting current down the coax line. Tod, KØTO _______________________________________________ Topband mailing list Topband@contesting.com http://lists.contesting.com/mailman/listinfo/topband |
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