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Old 01-19-2011, 11:26 AM
Radio Tech Radio Tech is offline
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What are all these components ??

I know when you are first starting out you look in a radio and say wow. These things are packed full of stuff. Let me see if I can help you out a bit.

TR 1- RF AMP TR 13- Squelch Clamp
TR 2- Buffer AMP TR 14- Final Amp
TR 3- Squaring AMP TR 15- Driver AMP
TR 4- Pulse AMP TR 16- PreDriver
TR 5- Pulse clamp TR 17- Mic audio AMP
TR 6- RF Gain Clamp TR 18- AMC Clamp
TR 7- RF AMP TR 19- ANT Ind switch
TR 8- 2nd IF AMP 1 TR 20- REC/2nd IF osc
TR 9- 2nd IF AMP 2 TR 21- TX supply switch
TR 10- 2nd IF AMP 3 TR 22- Dimmer switch
TR 11- Squelch inverter TR 23- Common 8 volt regulator
TR 12- Squelch AMP TR 24- ANT Ind inverter

FET 1- First RX mixer FET 2- Second RX mixer

IC 1- PLL chip
IC 2- VCO/Mixer
IC 3- TX Mixer
IC 4- Audio output / modulator

D1 & 2- Protection Diodes / Front end
D4- AM Detector/ AGC
FL1- First fliter
FL2- Second filter
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RT.
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