TWO Amperex 7025 tubes (Quiet / low noise version of ECC83 12AX7)

Made by Amperex, branded for Arcturus

NEW IN BOX

Tubes test at 1800, 1900 and 1900, 1800 where pass/fail is 1040 micromhos

All tube sections +100% gm

All tube sections +100% mA

BIG O getters / Big Halo

White lettering is faded

Short 14mm grey ribbed plates

I65 Δ6E2 etched date code=

Δ = Phillips Factory, Heerlen Holland

6 = 1966

E = May

The other etched code is very faded but I can see only Δ6 ( but this is lifelong pair of tubes)

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

FULL TEST RESULTS:

Tube 1:

1800 gm / 1900 gm (uMhos)

1.2 mA / 1.4 mA Plate Current Emissions (iP)

% Test results in percent %

112.5% / 118.7% gm

100% / 116.6% mA

NO SHORTS / ZERO GAS

------

Tube 2:

1900 gm / 1800 gm (uMhos)

1.4 mA / 1.2 mA Plate Current Emissions (iP)

% Test results in percent %

118.7% / 112.5% gm

116.6% / 112.5% mA

NO SHORTS / ZERO GAS

USA Shipping = USPS

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