where can i find them??

Hi Guys,
Can anyone tell me any store where I can find these compnents.

1) ECS-2100: Clock Oscillator
2) TTC-02: Isolation Transformer
3) M-8870: DTMF Receiver
4) M-991: Call Progress Tone Generator
5) 145816: Telephone Ringing Generator.

Thanks

I do not think these components will be available in retail stores. Those kind of stores have mostly vanished. If they are available it will be by mail order. Some of those components are past end of life and may not be available at all except from surplus dealers.

with the exception of the transformer, you can probably find all those functions integrated into a single chip nowadays