Description: 2 NOS Siemens ECL80 / 6AB8Made by Siemens in Germany for Mullard Matched Pairs In Original Mullard Boxes The Hickok 750 uses the 6000/D scale to test ECL80 tubes for Gm for the Pentode and the 3000/C scale for the triode Mutual Conductance (Gm) and Plate Current (mA) Pentode Gm = 3400 and mA 17.8 in pic 3 & 4 Triode Gm = 1550 and mA 7.8 in pic 5 & 6 A NOS ECL80 pentode should test for Gm on average at 3300 The minimum usable is 2100 A NOS ECL80 triode should test for Gm on average at 1350 The minimum usable is 850 No shorts or leakage, No Noise, No Gas Strong Emissions, and Passed life test with no movement on both the pentode and triode Strong Stable Tubes Made in Germany at Siemens Halske PlantAll tubes from same production and coded Hd4ǂ0I Hd4 is the tube type ECL80The ǂ Symbol is for Siemens in Germanyand the 0I is the date code All Tubes are coded the same Normal 0 false false false EN-US X-NONE X-NONE
Price: 22.4 USD
Location: Kirkland, Arizona
End Time: 2024-08-28T06:50:53.000Z
Shipping Cost: N/A USD
Product Images
Item Specifics
All returns accepted: ReturnsNotAccepted
Model: 6AB8
Country/Region of Manufacture: Germany
Type: Vacuum Tube
MPN: ECL80
Brand: Siemens
