Telephone Circuits and Schematics

Telephone Equipment Circuits
For School and Hobby

Telephone Equipment

Electronics Circuits Home

Lights & LEDs

Telephone Circuits

C = Circuit / Schematic

Telephone Record Control (3 transistors) C

Extremely Simple Telephone Record Control (only passive components) C

Telephone "Hold" With Music C

Telephone "In Use" Indicator C

Extra Phone Ringer C

Ringing Phone Light Flasher C

FM Telephone Bug C

Telephone Ring Generator Using Small Power Transformer C

Remote Control Using Telephone C

Simple Intercom System (LM38X) C C

Simple Intercom System (3 transistors) C

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