Two GE 5751 tubes

Tubes test 1300,1200 and 1290,1300 where pass/fail is 780 micromhos

Made in USA

Manufactured in year 1952

Matched 188-5 factory code

Black plates

Triple mica supports / x3 mica

Square getter / slanted D getter / angle D

Original boxes included with test result

printout enclosed on each box

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

FULL TEST RESULTS:

Tube 1:

1300 gm / 1200 gm (uMhos)

0.9 mA / 0.8 mA Plate Current Emissions (iP)

% Test results in percent %

108% / 100% gm (uMhos)

90% / 80% mA plate current

NO SHORTS / ZERO GAS

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Tube 2:

1290 gm / 1300 gm (uMhos)

0.9 mA / 1.0 mA Plate Current Emissions (iP)

% Test results in percent %

107.5% / 108% gm (uMhos)

90% / 100% mA plate current

NO SHORTS / ZERO GAS

USA Shipping free priority or ground advantage

International shipping = UPS 7 day delivery signature service or Global Post 10-20 day delivery depending on your country

Some countries I can not ship to. International buyers message to confirm

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