6AS7G Sylvania / Philco Audio Receiver Vacuum Tubes Tested Pair

Description

Tested Pair of
6AS7G Large Bottle Sylvania / Philco Audio Receiver Vacuum Tubes
Made in the USA and England
Flat black plates, three spacers, support rods, grid radiators and base getter flashes
One with dual rectangle wire getters
One with dual disk (saucer) getters
Construction variations
Please review the photos for more detail.
Excellent strong balanced NOS test results for Gm:
4.70 / 4.60 and 4.3 / 4.
5
For Gm, 3.0 is the suggested ~60% reject point
No shorts
For reference we used a calibrated Triplett 3444A tester
Estimated delivery within the USA is from 3 to 7 business days.
Our standard shipping is US Postal 1
st
class.
We combine shipping when applicable