Digital: Frequency Meter

This temperature meter uses a Harris 7106 IC as the heart of a low cost, accurate temperature meter. LCD 3-1/2 digit readout. All of the active circuits are in this one, versatile chip. In addition to temperature functions, the board includes an area for

This LCD panel meter is a very flexible design that can be customized to your own VOLT meter or AMP meter needs. It may be customized to measure any voltage range, standard or not. Or you can customize it to measure input from a transducer; full details a
0 Comments - in LED Circuits
Schematic for an electronic audio level VU meter that uses LED's to display the volume/audio levels.

Using ultrasonic techniques, this solid-state design has no moving parts.

An indispensable piece of electronic equipment for testing and measuring digital equipment. This Electronic Kit is normally used for fault finding and testing but can also be a great help in design work and to see how digital equipment works. Switch for u
0 Comments - in FM Transmitters
Simple 4-transistor transmitter electronic circuit that produces a Frequency Modulated (FM) signal at approximately 100MHz.

The TX1 from Broadcast Warehouse is an extremely high quality stereo FM transmitter that complies with FCC Standards, meaning that it can be used for commerical broadcasting. Output power is 1 Watt.

Kit Version: The LCD PLL 1 Watt FM Transmitter is an extremely nice piece of technology. This exciter features a built-in LCD screen and digital frequency control.

Assembled Version: The LCD PLL 1 Watt FM Transmitter is an extremely nice piece of technology. This exciter features a built-in LCD screen and digital frequency control.

This LCD panel meter is a very flexible design that can be customized to your own VOLT meter or AMP meter needs. It may be customized to measure any voltage range, standard or not. Or you can customize it to measure input from a transducer; full details a

The TX150 from Broadcast Warehouse is an extremely high quality stereo FM transmitter that complies with FCC Standards, meaning that it can be used for commerical broadcasting. Output power is 150 Watts.

The TX300 from Broadcast Warehouse is an extremely high quality stereo FM transmitter that complies with FCC Standards, meaning that it can be used for commerical broadcasting. Output power is 300 Watts.

The TX50 from Broadcast Warehouse is an extremely high quality stereo FM transmitter that complies with FCC Standards, meaning that it can be used for commerical broadcasting. Output power is 50 Watts.

The TX25 from Broadcast Warehouse is an extremely high quality stereo FM transmitter that complies with FCC Standards, meaning that it can be used for commerical broadcasting. Output power is 25 Watts.

The TX5 from Broadcast Warehouse is an extremely high quality stereo FM transmitter that complies with FCC Standards, meaning that it can be used for commerical broadcasting. Output power is 5 Watts.

The most powerful circuit we've seen that operates on such low voltage (just two AA cells). A range of 100 meters can be expected and, given a good antenna and FM receiver, 500 meters can be expected. An external power supply can be used up to 9 volts. Tr

The most powerful circuit we've seen that operates on such low voltage (just two AA cells). A range of 100 meters can be expected and, given a good antenna and FM receiver, 500 meters can be expected. An external power supply can be used up to 9 volts. Tr

This Digital Roulette Kit is just like the real thing. With a push of a button, the LEDs spin round and round. Where they stop is anybody's guess. Its unique design includes "pop out" chips of different values. Enjoy hours of fun with this game

This LCD expansion board upgrades your exisiting BW PLL exciter / transmitter so that it has an LCD readout and easier frequency adjustment.
1 Comment - in FM Transmitters
The Veronica 1 Watt PLL FM Transmitter is a pretty decent broadcast PLL exciter or transmitter that can be used alone or with an RF power amplifier for high power radio broadcast.

Educational Communications Kit, promotes learning about fiber optics with serious hands-on experience. The communications kit is a digital link that is suitable for use as a data link, high voltage isolation, computer interfaces etc. Included are a matche
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