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1 pair) ECC40 Philips NOS made by La Radiotechnique, Chartres/France 1969
1 tube) 6.1/6.7ma Gm=2800/2900
1 tube) 6.3/6.9ma Gm=2800/3000
Vplate=250V
Vgrid=-5.6V
Good Ma = 5.5-6ma
Good Gm = 2600-2900
- Lampizator DAC
- DIY