All vacuum tubes through GS-5A China military tester for testing.
Brand: GE(made in USA)
Tube Type:
5751 Black Plates 3 Mica Square Getter
Date Code: (made in 1955-58)
Test results: ( Minimum gm0.875ma/v , new gm1.25ma/v)
(1) gm=1.45 / 1.50 ma/v
(2) gm=1.45 / 1.45 ma/v
(3) gm=1.45 / 1.45 ma/v
(4) gm=1.50 / 1.45 ma/v
Shipping and handling: Free Shipping .
SHIPPING
(1) Shipped to United States about 15-20 working days.
Shipping is via USPS Air registered Mail.
(2)Shipped to worldwide about 20-30 working days.
Note:
Transport time will be subject to bad weather, flights,Detained in customs and holidays (eg Christmas Eve) effects. Project may be delayed, I can not control the transit time. If you have problems, please contact us! We try to help you solve the problem.