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

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.

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

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.