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Sylvania 8417 - matched quad

Sylvania 8417 - matched quad
Price: $324.00
1 matched quad in stock
Item Number: 300
Manufacturer: Sylvania


What is the manufacturer and model of your amplifier?

The 1970s Sylvania 8417 power tubes in this precisely matched quad have top and side getters
. The yellow print on the glass has the PhilipsECG logo (partial).

All four tubes test as new and are matched for both current draw (98.8-100.8 mA) and transconductance (99-100% Gm). Our power tubes are burned in and tested on a laboratory grade Amplitrex AT1000 tube tester (fixed bias mode, manual setting)
at typical operating conditions. They are screened for shorts, gas, leakage, and noise.


Tubes ship in their original boxes with test results
. These tubes are sold as a matched quad. Photo is of the actual tubes.
TC Tubes specializes in precision testing and matching of vintage and new production vacuum tubes for guitar & bass players, audiophiles, and DIY tube audio enthusiasts. Our website features secure payment options and fast, convenient shipping around the world.

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