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#1
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Modifying Old Crystal-Tuned Scanners
I recently bought a bunch of old base scanners, mostly some early Uniden
Bearcat models from the late 70's. I didn't realize that these were crystal-tuned units, and now I'm stuck with them. I was wondering if there's any way to modify them to be adjustable. Perhaps an extra circuit employing 8 simple oscillators with adjustments, connected to the 8 crystal sockets? There must be a way to do this...... -- To reply via Email, remove NOSPAM from the address |
#2
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Modifying Old Crystal-Tuned Scanners
"Chris F." wrote in message ... I recently bought a bunch of old base scanners, mostly some early Uniden Bearcat models from the late 70's. I didn't realize that these were crystal-tuned units, and now I'm stuck with them. I was wondering if there's any way to modify them to be adjustable. Perhaps an extra circuit employing 8 simple oscillators with adjustments, connected to the 8 crystal sockets? There must be a way to do this...... Sorry! Start a museum! H.J. |
#3
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Modifying Old Crystal-Tuned Scanners
"Chris F." wrote in message
... I recently bought a bunch of old base scanners, mostly some early Uniden Bearcat models from the late 70's. I didn't realize that these were crystal-tuned units, and now I'm stuck with them. I was wondering if there's any way to modify them to be adjustable. Perhaps an extra circuit employing 8 simple oscillators with adjustments, connected to the 8 crystal sockets? There must be a way to do this...... Cheap crystals available at Ken's Electronics http://www.kenselectronics.com/lists/scanxtal.htm gb |
#4
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Modifying Old Crystal-Tuned Scanners
On Mon, 30 Oct 2006 23:44:26 GMT, "Chris F."
wrote: I recently bought a bunch of old base scanners, mostly some early Uniden Bearcat models from the late 70's. I didn't realize that these were crystal-tuned units, and now I'm stuck with them. I was wondering if there's any way to modify them to be adjustable. Perhaps an extra circuit employing 8 simple oscillators with adjustments, connected to the 8 crystal sockets? There must be a way to do this...... You could build a synthesizer. You'd need a CPU also, to control it, and some RAM to keep the frequencies you want to monitor. Some ROM to keep the firmware. Or you could buy a Uniden 996 for a lot less money. |
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