61.วงจร Distortion Effect
รายการอุปกรณ์
The parts for this Distortion Effect (Fuzz) are:
J1 - J2: 1/4 INCH MONO FEMALE CHASIS MOUNTING JACKS
C1 - C5: 0.1 MICROFARAD CERAMIC DISC CAPACITORS AT 50V
P1: 100M POTENTIOMETERS
P2: 10K POTENTIOMETERS
R1 - R2: 1K RESISTORS
D1 - D2: GENERAL PURPOSE DIODES
IC1: 741 OP AMP
62.วงจร DSL ฟิลเตอร์
63.วงจร DTMF Proximity Detector
64.วงจร Dual Voltage Controlled Amplifier PCB
65.วงจร Electronic Auto Stethosope
66.วงจร Envelope Follower Trigger
67.วงจร Fast Turn On- Delayed - Off Relay
68.วงจร FM Oscillator PCB
Component list of the FM Oscillator with the BF900
Resistors:
(All resistors are metalfilm types except R1 which is a carbon resistor)
R1 : 47k, 1/8 W
R2 : 47k, 1/8 W
R3 : 47k, 1/8 W
R4 : 100E, 1/8 W
R5 : 220k, 1/8 W
R6 : 100k, 1/8 W
R7 : 150E, 1/8 W
R8 : 10k, lin. pot
Capacitors:
C1 : 100 nF Multilayer or ceramic
C2 : 4.7 pF ceramic
C3 : 100 nF ceramic (1 or 10 nF will do also)
C4 : 40 pf trimmer
C5 : 4.7 pF ceramic
C6 : 10 pF ceramic
C7 : 22 pF ceramic
C8 : 1 nF ceramic
C9 : 1 nF ceramic
C10: 100 nF ceramic
C11: 100 nF ceramic
C12: 100 nF ceramic
C13: 47 uF/25V
C14: 1 nF ceramic
Inductors:
L1 : 4 wdg, dia 8 mm, 1 mm CuAg, space 1 mm;
Mounted 8 mm above PCB (Leads are 4 mm)
L2 : 6-hole ferroxcube wideband HF-choke (5 wdg)
L3 : 6-hole ferroxcube wideband HF-choke (5 wdg)
Others:
Q1 : BF900
D1 : BB405,BB102 or equal (most varicaps with C = 2-20 pF (approx) will do)
U1 : uA78L08, uA7809, uA7810 or equal (MC78LXX, UC78LXX etc)
For more information see OSCBF900.DOC
69.วงจร Fogger Controller
70.วงจร Germanium Noise Generator
