Vacuum Transistor

[Joseph Bento]

On 6/27/2014 6:23 PM, Phil wrote:


> Allegedly, it was the JFET that Bardeen and Brattain were trying to make before getting the bipolar transistor to work instead. Anyone remember Fetrons?
>
>
I had to look those up.  I seem to recall hearing the word, but I 
couldn't have told you what it was.  This website gives a good description:

http://www.philipstorr.id.au/radio/eleven/fetron.htm

Sounds like a practical device.  Since the 12AX7 is listed as a valve 
the fetron replaces, It'd be interesting to see one in a guitar amp.  :-)

Joe,  N6DGY