Data sheet

 

  1. 145816            - TELEPHONE RINGING GENERATOR
  2. 2N3906            - PNP General Purpose Amplifier
  3. 4066                - Quad Bilateral Switch
  4. 74HC4514            - 4-to-16 Line Decoder
  5. 74LS00            - Quad 2-Input NAND Gate
  6. 74LS373            - Octal Transparent Latch with 3-STATE Outputs
  7. ECS-2100            - Clock Oscillator
  8. M-8870            - DTMF Receiver
  9. M-991             - Call Progress Tone Generator
  10. TTC-02            - Isolation Transformer