NUVISTOR

[Mr.Huge]

These were used in some old Ampex preamps. They’re pretty cool.

Nuvistor

Also see;
http://semiconductormuseum.com/OralHistory/RCA/Mendelson/Mendelson_Index.htm

http://www.logwell.com/tech/components/nuvistors.html

http://hhscott.com/cc/nuvistors.htm

[Peter Snowberg]

You also find Nuvistors in lots of old Tek scopes.

A word of caution for anybody experimenting with Nuvistors.... they love to oscillate.... at VHF frequencies! :shock: Good layout is EVERYTHING.

Take care,
-Peter

[Lonestarjohnny]

Thank's Mr Hugh, I just found some in a box of stuff I was rummage'in through and I wondered, What in the heck are these little guy's, now I know  :idea:
JD