Quote:
Originally Posted by Esteban
I have four or five 6CW4... Maybe can be useful. I think nobody build a MD based on this small tube (only 1.5 cm!). This is low noise and cover HF part of band. I had in past a Japanese TV (Hitachi) in wich front part was words "With Nuvistor". I check it and found the tube in the tuner. Also I remember the stability of the image...
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Have a look here ->
http://www.thevalvepage.com/valvetek...r/nuvistor.htm
There are some example circuits that might be useful.
