(!!!!!) (BEST SINGLE) 6X4 SER = LM Ericsson Sweden "D" getter NOS 1950's (57/40 and 58/40)
By Tube World
$ 24.99
1 tube) 6X4 SER = LM Ericsson Sweden NOS "D" getter 1950's in white box
Aktiebolaget Svenska Elektronror = Limited Company Swedish Electron Tubes
57/40
58/40
40=65%
50+=100%
Recommended for
Audio Note DAC 1.2
LAMM LP2 phono
KONDO KSL M7 preamp
Kondo M77 preamp
Eastern Electric Minimax Phono
Pultec EQ
Wright WPP200C
Audio Note M7
See more: vacuum tube
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 (BEST SINGLE) 6X4 SER = LM Ericsson Sweden "D" getter NOS 1950's (57/40 and 58/40) "Pin It")