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Raytheon 5687 - matched pair, IBM label
 Raytheon CK-5687 - matched pair Raytheon CK-5687 - matched pair |
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SOLD OUT
Item Number: 858
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The 1961 Raytheon 5687 tubes in this precisely matched pair have bronzed black plates and large halo getters. The yellow print on the glass is labeled for IBM with matched date codes.
Both tubes test as new and matched for both current draw (mA) and transconductance (Gm). Tubes ship in new white boxes.
These tubes are sold as a matched pair. Photo is of a sample from the lot.
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TC Tubes specializes in precision testing and matching of vintage and new production vacuum tubes for guitar & bass players, audiophiles, and DIY tube audio enthusiasts. Our website features secure payment options and fast, convenient shipping around the world.
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