Category
Vintage Tubes & Tube Sockets
Store
eBay
Brand
SYLVANIA
5687WA ; 5687WB ; 6900. 7119 ; E182CC. The heater has a center tap which allows both 6.3V and 12.6V operation. This is the series connection. Both triode systems have an amplification factor of 17 and a plate resistance of about 3kOhm.
79.58 GBP
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