This is a Mullard (Made for Bogen) 6EU7 tube made in Great Britain. It was just tested on an Amplitrex digital tube tester. Tubes had zero grid leakage and H/K leakage…excellent.
Lot of 50 pcs 4P1L (4?1?) Russian direct heated pentode tubes, NOS, NIB. Eqivalents 4LS1, RL2, 4P6.One 50 pcs factory box. Same date codes.Produced 1960's by Svetlana Tube Factory, StPetersburg, Russia.Rombus stamp - military grade, high stability and durability.Each tube in brown paper package.
NEW AISI 316 TUBE & SOCKET 4.5" PROCESS GAUGE Auction for NEW 4.5" Process Gauge as Shown in Photo. Unit Specs: Connection 1/4" NPT; Range 0-100 PSI, Type Bottom, Accuracy 1/2%; Liquid Fillable S.S. 316 Tube & Socket.
Up for auction today we have a Brand New TRERICE Oil Pressure Guage. The guage Item # is 700B2502BA200, Model # is 700B 2.5" Guage, Range is 0-2000 psi and the Connection is 1/4 NPT Back.The guage also has a 316 stainless steel tube, a 316 stainless steel socket and a safety glass cover. There is a valve on the top of the guage that has an open/closed feature for glycerin filling.
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