G17339 - Russian Geiger Tube

www.goldmine-elec.com. G17339 - Russian Geiger Tube. 5. 6. 7. 8. 4. 3. 2. 1. 555 IC. R2. C2. C1. R1. Q1. T1. S1 9VDC. D1. R3. R4. R6. Q3. Q2. B. E. C. S. D. G.
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G17339 - Russian Geiger Tube www.goldmine-elec.com

R2 D1 5

6

7

4

3

2

555 IC

C1

8

R3

1

C2

Q2 SPK

S

D

G

R4

R5

GT1

+

R1 B

E

Q1 C

GND

C3

T1

S1 9VDC Q3

R6

L1

Parts List

C1_ __________ 1µF Tantalum Capacitor C2_ __________ 0.47µF Monolythic Capacitor C3_ __________ 10pF Ceramic Capacitor D1_ __________ 1N4007 Diode GT1__________ Russian Geiger Tube IC1___________ 555 Timer IC L1___________ LED Q1___________ 2N3906 Transistor Q2___________ 2N7000 FET Transistor Q3___________ 2N6427 NPN Darlington Transistor R1_ __________ 4.7KΩ 1/8W Resistor R2_ __________ 12KΩ 1/8W Resistor R3_ __________ 100KΩ 1/4W Resistor R4_ __________ 4.7MegΩ 1/4W Resistor R5_ __________ 1MegΩ 1/4W Resistor R6_ __________ 10MegΩ 1/4W Resistor S1_ __________ Switch T1_ __________ Inverter Transformer

+

End closest to the (+) mark

GND