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It’s a consumer counter meant for automotive use. It’s 1972, LEDs are new, and this thing has an ovenized oscillator to drive a box of chips.

I’m surprised it’s still as accurate as it is, but this had to be a high cost piece of equipment when new.

It’s a consumer counter meant for automotive use. It’s 1972, LEDs are new, and this thing has an ovenized oscillator to drive a box of chips. I’m surprised it’s still as accurate as it is, but this had to be a high cost piece of equipment when new.

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[–] • 1 pt

Yes, that would be extra expensive. Wire bonding must have been a bitch.