Elenco Electronics AM/FM-108CK Assembly And Instruction Manual page 20

ASSEMBLY INSTRUCTIONS
TP4 - Test Point Pin
(see Figure A)
T7 - AM IF Coil
(White Dot)
R40 - 10kΩ Resistor
(brown-black-orange-gold)
R41 - 470Ω Resistor
(yellow-violet-brown-gold)
STATIC MEASUREMENTS
Q9 BIAS
Connect your VOM as shown in Figure 17. Set the
VOM to read 9 volts DC and turn the power ON. The
voltage at the emitter of Q9 should be approximately 1
Amps COM
If you do not have an RF generator and oscilloscope, skip to Section 4.
V
V/Ω
TP15
volt. If your reading is different by more than .5 volts,
turn the power OFF and check components R39, R40,
R41 and Q9.
Figure 17
-19-
R39 - 39kΩ Resistor
(orange-white-orange-gold)
C36 - .02μF Discap (203)
Q9 - 2N3904 transistor
(see Figure C)
C37 - .02μF (203)
or .022μF (223) Discap