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Simple FM transmitter powered by 1.5V battery – Circuit Schematic
Simple FM transmitter powered by 1.5V battery
This simple FM (frequency modulation)transmitter is powered only bya 1. 5V batteryand usesonly 1 transistor. The frequency of this transmitteris controlled by t...
Simple FM transmitter powered by 1.5V battery – Circuit Schematic
Simple FM transmitter powered by 1.5V battery
This simple FM (frequency modulation)transmitter is powered only bya 1. 5V batteryand usesonly 1 transistor. The frequency of this transmitteris controlled by t...
Solid-State Tesla Coil 2 – Circuit Schematic
Solid-State Tesla Coil 2
Tesla built the world`s most powerful radio transmitter. Around the base of a 200-foot mast, he placed an air-core transformer that measured 75 feet in diameter...
Solid-State Tesla Coil 2 – Circuit Schematic
Solid-State Tesla Coil 2
Tesla built the world`s most powerful radio transmitter. Around the base of a 200-foot mast, he placed an air-core transformer that measured 75 feet in diameter...
SX1212 Ultra Low Power (3mA RX) RF Transceiver 310-510MHz – Circuit Schematic
SX1212 Ultra Low Power (3mA RX) RF Transceiver 310-510MHz
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SX1212 Ultra Low Power (3mA RX) RF Transceiver 310-510MHz – Circuit Schematic
SX1212 Ultra Low Power (3mA RX) RF Transceiver 310-510MHz
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SX1210 Ultra Low Power (3mA RX) RF Receiver 862-960MHz – Circuit Schematic
SX1210 Ultra Low Power (3mA RX) RF Receiver 862-960MHz
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SX1210 Ultra Low Power (3mA RX) RF Receiver 862-960MHz – Circuit Schematic
SX1210 Ultra Low Power (3mA RX) RF Receiver 862-960MHz
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FM TUNE UP – Circuit Schematic
FM TUNE UP
At some point every ham working with FM radios has need to do some tuning of the transmitter and receiver. If you are like me and lucky enough to have professio...
FM TUNE UP – Circuit Schematic
FM TUNE UP
At some point every ham working with FM radios has need to do some tuning of the transmitter and receiver. If you are like me and lucky enough to have professio...
Bi-Level Squelch – Circuit Schematic
Bi-Level Squelch
As no one wants to listen to discriminator noise, the proper operation of the squelch circuit in any FM radio is vital. In a repeater, the squelch / COR is even...
Bi-Level Squelch – Circuit Schematic
Bi-Level Squelch
As no one wants to listen to discriminator noise, the proper operation of the squelch circuit in any FM radio is vital. In a repeater, the squelch / COR is even...
iPod FM Transmitter – Circuit Schematic
iPod FM Transmitter
Building your own ipod FM radio transmitter. It works quite easy, there is a power switch on the bottom to turn it on and tune your radio and transmitter to the...
iPod FM Transmitter – Circuit Schematic
iPod FM Transmitter
Building your own ipod FM radio transmitter. It works quite easy, there is a power switch on the bottom to turn it on and tune your radio and transmitter to the...
VHF-HF TRANSVERTER – Circuit Schematic
VHF-HF TRANSVERTER
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VHF-HF TRANSVERTER – Circuit Schematic
VHF-HF TRANSVERTER
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VHF FM Transmitter MAX2606 – Circuit Schematic
VHF FM Transmitter MAX2606
If you want to be independent of the local radio stations for testing VHF receivers, you need a frequency-modulated oscillator that covers the range of 89.5 to ...
VHF FM Transmitter MAX2606 – Circuit Schematic
VHF FM Transmitter MAX2606
If you want to be independent of the local radio stations for testing VHF receivers, you need a frequency-modulated oscillator that covers the range of 89.5 to ...
USB Mono FM Transmitter – Circuit Schematic
USB Mono FM Transmitter
This small FM transmitter with a range of about 50 meters designed for connection to the USB port. With lots of mini-transmitters then you have a comprehensive,...
USB Mono FM Transmitter – Circuit Schematic
USB Mono FM Transmitter
This small FM transmitter with a range of about 50 meters designed for connection to the USB port. With lots of mini-transmitters then you have a comprehensive,...