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Okay, so you’re into electronics projects, right?
Hacking together a phone system, building a remote control thingy, or maybe just messing around with DTMF tones?

I got you.

Here’s a pair of HT9200B chips in the classic DIP-14 package.

They’re the ones that generate those touch-tones you hear when you dial a phone.
What’s cool is they can talk to your microcontroller using either a serial or parallel interface—super flexible.
These are listed as ‘open box,’ but they’re basically new old stock.

Probably came in a bulk tube or a non-retail bag, but the chips themselves are pristine, no wear.

Perfect for prototyping or if you just need a spare (or two) for a project.

Unbranded, but the model is HT9200B, so you know exactly what you’re getting.

4.5 out of 5