Telephone Block Diagrams and Phone Circuits
Electronic Telephone Circuits & Diagrams
Build circuits for telephones, with this cool collection of block diagrams and electronic circuit diagrams that work with telephones.
Electronic Telephone Kit
Learn how a telephone works. Comes complete with all parts and manual. Has the latest features such as automatic redial, mute and flashing neon lights when ringing. The clear plastic case allows you to show your friends your accomplishment.
0 Comments - in Telephone
Features a telephone ring generators, phone line in-use indicators and an audio interface circuit.
0 Comments - in Telephone
Electronic circuit that connects to phone line and produces and flashing LED and audible sound when there is an incoming call.
PCB plans and circuit diagram (schematic) for what appears to be an extremely nice 100 watt guitar amplifier. Includes preamplifier and power amplifier circuit diagram and PCBs
4 Comments - in Miscellaneous
Metal detectors a tons of fun. These metal detector electronic circuits will enable you to go hunting for all kinds of cool stuff, wherever you like!
Phone Pickup Suction Cup Electronic Kits
No electrical connection to the telephone is required, attach a suction cup to the hand set an turn on the amplifier. This project permits group listening to phone calls. You can also use it to monitor any other oscillating electrical field. Dual IC's pro
Shows the pins and wiring instructions for creating an RS-232 Null Modem for your PC.
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