RE: 833a Sockets

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Stephen Mathieson" <s.mathieson-at-charter-dot-net> 

The original technical term was thermionic valve as the original "tubes"
operated by controlling thermionic emission of electrons by a heated
cathode, not to be confused with cold cathode "tubes."  There were some
metal cased (Solitrons?)cold devices that came about the time of the first
transistors but were not cost effective and are now forgotten.

Stephen A. Mathieson

-----Original Message-----
From: Tesla list [mailto:tesla-at-pupman-dot-com]
Sent: Sunday, September 07, 2003 5:09 PM
To: tesla-at-pupman-dot-com
Subject: Re: 833a Sockets

Original poster: "Malcolm Watts" <m.j.watts-at-massey.ac.nz>

On 5 Sep 2003, at 19:14, Tesla list wrote:

  > Original poster: "Adam Horden" <ath-at-blueyonder.co.uk>
  >
  > Hi,
  >
  > Valves is just a nickname given to tubes etc. I honnestly dont know why
that
  > is. Maybee its just a UK thing?

It's actually a more technical description of the job they do, namely
controlling a ("conventional") current flow from anode to cathode.
"Tube" sounds more like a nickname to me. I prefer "bottle".

Malcolm

  > Adam
  >
  > ----- Original Message -----
  > From: "Tesla list" <tesla-at-pupman-dot-com>
  > To: <tesla-at-pupman-dot-com>
  > Sent: Friday, September 05, 2003 1:31 AM
  > Subject: RE: 833a Sockets
  >
  >
  >  > Original poster: "Mccauley, Daniel H" <daniel.h.mccauley-at-lmco-dot-com>
  >  >
  >  >
  >  >
  >  > Pentalabs has 833A sockets for about $30.00 each which is a great
price.
  >  > Not sure what shipping would be though.
  >  > They are pretty good. www.pentalabs-dot-com
  >  >
  >  > BTW, what's a valve??
  >  >
  >  > Dan
  >  >
  >  >
  >  >  > Hi Guys,
  >  >  >
  >  >  > I was wondering if any of you guys would have some spare 833a
  >  >  > (power triode)
  >  >  > tube bases and tube connectors? The cost if importing them was
nearley
  >  >  > double the cost of the valves!
  >  >  >
  >  >  > Adam
  >  >  >
  >  >  >
  >  >  >
  >  >
  >  >
  >
  >
  >