ONE Amperex EF86 6267 tube

Tubes test 2300 where pass/fail is 1170 micromhos

Mesh plate

Halo getter / O getter

The white lettering is very faded

8Y5 L4B2 etched date code=

L = MBLE Mazda factory in Brussels Belgium

4 = 1964

B = February

2 = week 2

Tested on Amplitrex AT-1000 computerized tube tester (fixed bias mode)

FULL TEST RESULTS:

Tube 1:

2300 gm (uMhos)

3.4 mA Plate Current Emissions (iP)

NO SHORTS / ZERO GAS

% Test results in percent %

127.7% gm (uMhos)

113.3% mA plate current

USA Shipping free priority / advantage

international shipping = UPS or FedEx 7-10 day delivery depending on your country

*In photos I use camera flash on and camera flash off to show all detail*