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Posts tagged 1500,

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 […]

HF VHF UHF tv antenna boster Active

HF VHF UHF tv antenna boster Active circuit diagram using 2SC2570, MFE201

12 Volt 1 Amp DC Power Supply Adapter (12 Watts) picture circuit diagram

12 Volt 1 Amp DC Power Supply Adapter (12 Watts) picture circuit diagram 12v symmetric power supply using 7812, 7819, DZ12v   CT simetris and non CT Transformer Power Supply 12V PCB 12 Volt 1 Amp DC Power Supply Adapter (12 Watts) picture circuit diagram This circuit provides ±12V regulated DC output based on LM7812 and […]

Electronic Schematic collections

Electronic Schematic collections Digital TV Sound Processor using TDA9875A Digital TV Sound Processor using TDA9875A Electronic Schematic collections General Description The TDA9875A is a single-chip Digital TV sound Processor (DTVSSP) for analog and digital multi-channel sound systems in TV sets and satellite receivers.

LM555 Circuit Monostable Timers part 15

LM555 Circuit Monostable Timers part 15

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