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3 Vintage GE 5U4GB Rectifier Tubes. Satisfaction Guaranteed. Lot O9 T5

SKU: 3.vin.5U4GB.rec
Stock: 1
Price:
$22.00

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3 Vintage GE 5U4GB Rectifier Tubes. Satisfaction Guaranteed.
The taller one is screened as a 5U4GA, however, the base is marked 5U4GA/5U4GB & has a black plate.
The other two have grey plates.  All have side square getter.
Tested strong on Precision Apparatus Model 10-12; where the minimum good reading is 54.
Tube#1 = 72/78, Tube#2 = 72/77, Tube#3 = 70/81
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