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Triplett 631 AAAA adapter
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Triplett 631 AAAA adapter
by![](../../gravatar.com/avatar/e7d4be48be9c39fd617af1a654e4bf4cea98.jpeg?s=16)
2
layer board of
4.06x1.80
inches
(103.02x45.72
mm).
Shared on
August 14th, 2016 21:44.
These PCBs are for battery packs to power a Triplett 631 vacuum tube voltmeter.
Three PCBs replace two XX15 batteries.
For more information, see http://stuartschmitt.com/triplett631/.