1MP MWT BL63 VR102 GEC Cup Getter Black Coated Glass Amplitrex Tested

Up for sale 1 matched pair

NOS MWT BL63 VR102 GEC

= 6F8G = BL63= 6SN7GT= ECC32= 5692=  CV181 = 6N8P

The Photos are actual Photos of tubes you are buying  

made in England

Cup getter

Black coated glass

New in white box

Tested on Amplitrex AT1000 Advance Digital Tube Tester

Sr. No.1336001.  T1=Ia=12.3ma  Gm=2900

                               T2=Ia=11.8ma  Gm=2800

Sr. No.1336015.  T1=Ia=13.8ma  Gm=2990

                               T2=Ia=15.6ma Gm=3220

NOS Gm Specification	4200	4200
Tube 1 Test Results	2900 (69%)	2800 (66.67%)
Tube 2 Test Results	2990 (71%)	3220 (76.67%)

Custom duties and taxes is the responsibility of the buyer in their country More photos can be viewed of this items at audiotubes.in

The VR102 (= M-OV Type BL63) is a low-impedance double triode with one grid taken to the top cap. The VR102 was supplied by M-OV to the RAF during WWII. Thanks to Frank Whitby for confirming that the VR102 was used for the R1155 receiver that was fitted to Lancaster and other bombers. As part of the direction finding (DF) circuitry, it formed the visual meter switch operating at either 30 or 80 Hz. Its output fed the twin-needled Visual Indicator and one of these instruments was usually fitted on the top of the cockpit instrument panel. A description of this clever circuit, designed by the Marconi Wireless & Telegraph Co. is given in the Manual for the R1155 (AP2548A Vol I Chapter 2). This can be seen on the Vintage and Military Amateur Radio Society’s website. The classic envelope is 42 mm in diameter and, excluding the IO base pins, is 113 mm tall. References: 1040. Type VR102 was first introduced in 1939.

We accept order with combine shipping

All tubes tested on our Amplitex AT1000 A Advance Tubes Tester to preform the test as mentioned and to ensure that the tubes are in factory specs (working) before listing them. All tubes are checked for Shorts, Emission, Life test, and Leakage. Emissions/life test on this meter Tube tested: No leaks, No shorts, Good emissions Tube tested emissions (100) life test (100) Tube tested strong Our experienced shipper will package your item(s) with care. Through Expedited delivery within 5 days by DHL,FEDEX, ARAMEX,with tracking Number. We also combine multiple purchases. Our shipping carriers include , FedEx  We reserve the right to ship using the carrier and shipping method that is most effective for your purchase.

 About us 

We specialized in thoroughly tested and screened quality vacuum tubes. We have various type of valves and tubes testers Like – Amplitrex AT1000 Advance Digital Tube Tester,  – Hickok 752a tube tester, – AVO Type 160 We have been in the valve and tube Business Since 1970’s. Previously we were better Known as a Wholesaler, but recently, We are offering more retail items. All item are tested and guranteed and supplied We have Aproximately 3,00,000 Valve and Tubes Stock

PLEASE CONTACT US IF YOU REQUIRE FURTHER INFORMATION ABOUT  THIS VALVE.