Two Amperex Bugle Boy EL34 / 6CA7 tubes

New in original box

Tubes test at 12900 & 12800 where pass/fail = 7150 micromhos

117.2% & 116.3% gm // 109.3% & 108.2% mA

White lettering is excellent

Bugle Boy logos intact

Made in Holland white lettering excellent

Brown Bakelite bases

Welded plates

Double D's getter / DD getters

No rattle / no loose parts

Matched etched date codes:

Xf4 L0G =

Xf4= Mullard Production

L= M.B.L.E. Mazda factory in Brussels, Belgium 0= year 1960

G= month July

Original boxes great condition

Strong +100% GM and +100% Plate Current

Tubes are matched to 1.1% difference GM

Tubes are matched to 1.1% difference mA plate current

Test result printout enclosed in each box

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

COMPLETE TEST RESULTS:

Tube 1:

12900gm (uMhos)

109.3 mA Plate Current Emissions (iP)

% Test results in percent %

117.2% gm (uMhos)

109.3% mA Plate Current Emissions (iP)

NO SHORTS / NO GAS

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Tube 2:

12800 gm (uMhos)

108.2 mA Plate Current Emissions (iP)

% Test results in percent %

116.3% gm (uMhos)

108.2% mA Plate Current Emissions (iP)

NO SHORTS / NO GAS

For reference: SPEC(100%) value for EL34 type tubes = 11000 gm and 100 mA plate current

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

USA= FedEx or UPS signature delivery

International = FedEx or UPS 7-10 day signature delivery