Atlas 210x, Installation, Operation And Maintenance Manual

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4-16. PC 600 Carrier Oscillator, Buffer Amplifier
PC-600 consists of those components necessary to generate the normal carrier frequency of 5520 kHz, and the
opposite sideband frequency of 5523.3 kHz. Crystal X602 is the Normal sideband crystal, and X601 is the
opposite sideband crystal. Q601 is the Carrier Oscillator, and Q602 the Buffer Amplifier. The output of the Buffer
Amplifier is coupled through C612 to terminal 6 of PC-300C. From terminal 6, on PC-300C, the carrier frequency
is fed direct to the F.E.T. Oscillator Switch.
PC-600 CIRCUIT COMPONENTS
Carrier Oscillator Buffer Amplifier
C601 .................... 22 pF 10% Disc R601 .................. 4.7K 10% 1/4 Watt
C602.603. ............... 5-30 pF Trimmer R602.604 ............... 15K 10% '/4 Watt
C604 .................... 10pF 10% Disc R603.613 ................ 1K 10% '/4 Watt
C605,606.607,611.612 .... .01 MF 100V Disc R605 ................... 220 10% % Watt
C608............... 200 pF 5% Silver Mica R606 ................... 22K 10% '/4 Watt
C609. .............. 100pF5% Silver Mica R607 ................... 10K 10% '/4 Watt
C610 .................... 15 pF 10% Disc R608.611. ................ 82 10% '/4 Watt
C613 .................... 510pF5%Disc R609,610 ............... 33K 10% % Watt
D601 ................ BA-182 Silicon Diode R612 ................... 470 10% % Watt
D602 ............... 1N4148 Silicon Diode L601 .................... 1.4 uH inductor
Q601,602 ............... 2N706 Transistor X601 ............. 5523.3 Khz OPP. SB Xtal
X602 ............. 5520 Khz Norm. SB Xtal
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