NOS tubes fall within the Gm characteristic range of an average tube, as published in the RCA RECEIVING TUBE MANUAL, which states "Individual tubes, like any manufactured product, may...
GE 5U4GB 5AS4A Test NOS 100/100% Smooth Grey Plates Side D Serious Tubes P432 Click images to enlarge Description Buy More Than One Tube(full price) and Save $$$! Offer...
Even the box is in fantastic condition. Don't find too many of these around in this condition. Features grey plates with a side-mounted, rectangular "D" getter. Exceptionally CLEAN tube...
GE Canada 5U4GB 5AS4A Test NOS 100/100% Smooth Grey Plates Serious Tubes O522 Click images to enlarge Description Buy More Than One Tube(full price) and Save $$$! Offer $3.00...
Tubes have black smooth plates, top O getters. tubes tests.
RCA 5U4GB 5AS4A ELECTRON TUBE / VACUUM TUBE 5-PIN MADE IN USA RCA 5U4GB 5AS4A ELECTRON TUBE / VACUUM TUBE 5-PIN MADE IN USA
Tubes:We prioritize the quality of our tubes with utmost seriousness. Our sphere of influence stretches across an impressive array of sectors. But our ambition transcends boundaries. We are in...
Tubes have black ribbed plates, clear top, top side double rectangular getters. tubes tests Price is for all tubes pictured.
Tube was tested on B&K model 400 tester.