PRO-95 Carrier Light Mod? TK10420?

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pro92b

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The PRO-95 uses a KA3361 IF chip. As with the TK10420, pin 13 should provide the function you need. The circuit you referenced was intended for a base or mobile radio, not a handheld that runs on internal batteries. It is not efficient and will reduce the battery life in a PRO-95. For a handheld choose a high brightness LED like the one at WP710A10ZGC/G Kingbright | Mouser and run it at low current (1 mA) and increase the transistor base resistor from 10K to 100K.
 

LynchburgCSI

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Jun 8, 2014
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Lynchburg, Virginia
The PRO-95 uses a KA3361 IF chip. As with the TK10420, pin 13 should provide the function you need. The circuit you referenced was intended for a base or mobile radio, not a handheld that runs on internal batteries. It is not efficient and will reduce the battery life in a PRO-95. For a handheld choose a high brightness LED like the one at WP710A10ZGC/G Kingbright | Mouser and run it at low current (1 mA) and increase the transistor base resistor from 10K to 100K.
Easy enough! Thanks. I'll grab a transistor next time I'm out and try it.
 
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