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Curious Inventor - Store: Half-Sized 4-Pin Oscillator Socket
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out of stock, check back in 3-4 days - price: $0.49
Half-Sized 4-Pin Oscillator Socket
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short description:

This socket is specially designed to hold half-sized, 4 pin oscillators. The holes are sized correctly to hold the round pins on the oscillator more securely than a standard dip-chip socket.

more information and instructions:

For oscillators, go here.