Click image to enlarge
Description
2 western electric 310A tubes
boxes are marked "used good"
large punch plate - [] getter
date codes 64-26 & 65-14
tested on my Amplitrex AT1000 tube tester
(fixed bias)
results also verified on my triplett 3444A mutual conductance tester
no gas, shorts or h-k leakage
average new for this type 1800
tested @
1800
1600
