WWII-era, with close 1945 date codes. Gm matched to about 13% difference on the Amplitrex AT1000. Number 6SL7W. Actual manufacturer Sylvania. Small signal (i.e. 12AX7) tubes are generally checked for noise and microphonics; power tubes (i.e. 6L6) are usually not.
eBay
LED ceiling lamp Tolorico made of stainless steel and chrome-plated metal with a glass tube with crystal effect can also be used as a wall lamp - thanks to IP44 protection even in the bathroom.
Lampenwelt UK
Closely-matched Pair Russian Military Spec 6H9C 8909 (6N9S 6SL7 6SL7GT) Valves/Tubes. Both tests done on my Jackson 561 valve tester. Valve 2 tests 102%/93%.
eBay
LED ceiling lamp Tolorico made of stainless steel and chrome-plated metal with a glass tube with crystal effect can also be used as a wall lamp - thanks to IP44 protection even in the bathroom.
Lampenwelt UK
2x Mullard ECC35 Valves. Date Code: 1347 L2 (1952), 1347 1G2 (1952). This valve has also been tested in amplifier without any noise. NOS specification: Ia = 2.3(mA), gm = 2(mA/V). Ia2 = 2.8(mA), gm2 = 2.25(mA/V).
eBay
The arm of the steel desk lamp NEMO consists of a flexible tube so that the head of the lamp can be turned in the desired direction - Switch, plug and cable black - Inside of the lampshade white
Lampenwelt UK
Matched Pair 6SL7GT Grey Plate Dimple Foil Getter Bad Boy NOS Sylvania USA Valve Tubes (VT13).
eBay
The Lionel pendant light is made of black metal. The lampshade is formed by individual narrow metal lamellae that surround the socket and the bulb to be used. A tube bulb E27 with twisted filament technology (not included) looks best.
Lampenwelt UK
Matched Triplet 6SL7GT Grey Glass Dimple Foil Getter With 3 Crown Hallmark NOS RCA USA Valve Tubes (VT2).
eBay
In a long shape with rounded corners, the LED ceiling lamp Soft was made of painted aluminum and equipped with a diffuser made of PMMA. Through this, the light from the supplied LED tube emits evenly and brightly in a wide angle.
Lampenwelt UK
eBay
This louvre light is ideal for illuminating a workplace, as the light is evenly distributed and provides sufficient brightness. Two T8 LED tube bulbs are included in the scope of delivery. The beam angle is 120° - Suitable for temperature ranges...
Lampenwelt UK
6N9S / 6H9C / 6SL7 / 6N9P / 6N9 MATCHED PAIR (2pcs) TUBES NEW. these tubes are interchangeable with tubes 6SL7 / 6N9P / 6N9. 6N9S (6Н9С) double triode 100% New Item. Lot of 2 (Matched & Balanced Pair ).
eBay
This louvre light is ideal for illuminating a workplace, as the light is evenly distributed and provides sufficient brightness. Two T8 LED tube bulbs are included in the scope of delivery. The beam angle is 120° - Suitable for temperature ranges...
Lampenwelt UK
RARE 1950's. TUBES NEW, NOS. These tubes are interchangeable with tubes 6N9S, 6H9C, 6SL7, 1579.
eBay
In a long shape with rounded corners, the LED ceiling lamp Soft was made of painted aluminum and equipped with a diffuser made of PMMA. Through this, the light from the supplied LED tube emits evenly and brightly in a wide angle.
Lampenwelt UK