Reference identification prefixes: C=capacitor, R=resistor, Q=transistor, CR=diode, F=fuse, J=fixed connector, S=switch, VR=voltage regulator (transistor), etc.
2. Core Parts List (Example)
Part Type Reference Identification Tektronix Part Number Specification Description
Capacitor C103 283-0002-00 0.01pF, ceramic, 500V
Capacitor C133 283-0626-00 1800pF, mica, 5%
Resistance R120 322-0481-07 1M Ω, 1/4W, 1/10%
Resistance R121 311-1223-00 250 Ω, variable
Transistors Q150A/B 151-1027-00 silicon FET, replaceable with D/2N4394 or FD1392
Transistors Q103/Q105 151-0347-00 silicon NPN, replaceable with 2N5551
Diode VR138 152-0520-00 Zener diode, 1W, 12V, replaceable with UZ8712 or HW12B
Switch A10 (LF-3dB) 105-0310-00 cam switch
Switch S280 (VOLTS/DIV) 105-0309-00 cam switch
Circuit board A1 670-1894-00 main circuit board component

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