© QuartSLab 2009

Quartz Crystals

Series Resonant


      R1, R2, R3, R4 See Below
      C1, C2, C3, See Below
      C4 0.01F
      C5 47pF
      TR1 BC108 or similar
      L1 Close wound with 37SWG enamelled wire on 7.62mm diameter former with Neosid F25 coil

Frequency of X1 MHz

R1

R2

R3

R4

C1

C2

C3

L1

0.95 -1.65

68K

33K

*

2.2K

.0047mf

680 pF

680 pF

140 Turns

1.6 - 2.5

68K

33K

*

2.2K

.0047mf

680 pF

680 pF

65 Turns

2.5 - 4.0

68K

33K

560 ohm

1.5K

.0047mF

220 pF

220 pF

65 Turns

4.0 - 6.0

15K

6.8K

560 ohm

1.5K

.001mf

270 pF

270 pF

40 Turns

6.0 - 10.0

15K

6.8K

560 ohm

1.5K

150 pF

220 pF

220 pF

26 Turns

10.0 - 15.0

15K

6.8K

560 ohm

680 ohm

100 pF

220 pF

220 pF

16 Turns

15.0 - 21.0

15K

6.8K

560 ohm

680 ohm

100 pF

100 pF

100 pF

10 Turns

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