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Posts tagged SA602s

Circuit diagram 75 Meter QRP SSB Transceiver

The 75 Meter QRP SSB Transceiver Theory of Operation 6-30-03 In general, the transceiver switches the 4-element 1500 ohm xtal BPF ends between the inputs and outputs of the two SA602s to reverse the signal flow for R/T operation. Since no IF amplifier is used in the design, 20 dB of additional receiver gain is […]

CIRCUIT DIODE SWITCHED SYNTHESISER

Now I shall introduce my somple diode counter. To start off with, the MC145152-2 A-counter can have a count of 512, 1024, or 2048. This means that a 12.8MHz crystal, divided by 1024, will give you a reference frequency of 12.5kHz. You could alternatively use 6.4MHz divided by 512. Not many options there! You still […]

Holden Rodeo circuit

Holden Rodeo circuit Holden Rodeo circuit diagram for Headlight Switch Relay Holden Rodeo circuit diagram for Headlight Switch Relay Make and repair holden rodeo The following wiring diagram shows Holden Rodeo Headlight Switch Relay. This consists of battery,  fuse,  relay SPST, and headlight Holden Rodeo Headlight Switch Relay Wiring Diagram Wiring headlight switch relay troubleshooting […]

Tips on how to repair electronic devices

Tips on how to repair electronic devices Before the repair of electronic devices we must first know the blocks of the parts, it is very important because by knowing the block, we can easily determine and track the defective component, such as how to find a block of television is a machine we must know […]

Tone Control Circuit

Tone Control Circuit using IC LF353, TL072, TL082 Tone Control Circuit +Vcc 0 -Vcc R1 56 kΩ         C1 22 µF 35V R2 10  kΩ        C2 47 nF R3 10 kΩ         C3 47 nF R4 10  kΩ        C4 1 nF R5 10 kΩ         C5 100 nF R6 330 kΩ       C6 […]

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