6BX7 to 12B4A tube adapter for Topaz amplifier
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Product Status
                      Current
            Adapter upgrade from 6BX7 to 2 x 12B4A triodes
- lowers the overall gain of amplifier by about 5 or 6 dbs
 - lowers the noise floor by the same amount - this lowers the dynamic floor
 - gives a greater sense of uncompressed music - Dynamic bandwidth is greater
 - gives more precise channel balance - better 3D effect
 - more silence between notes from speakers
 - Adapter consist of a cast aluminum black case
 - 8 pin male socket - plugs into 6BX7 socket
 - 2 x 9-pin Teflon sockets for the 12B4As
 - 2 x 12B4A NOS GE triode tubes
 - PCB board where components are mounted
 - machined deep red plexiglass cover
 
Price (USD)
                      $ 435
            Price (CAD)
                      $ 600