[Boatanchors] 1625 tube

[rayfri at highstream.net]

Another bit of trivia:
     A cold 807 tasted great after an afternoon of antenna work...
 or while tuning around looking for that elusive dx or stateside station..
     Never had a chilled 1625 though   HI HI
     Ray  wa7itz




Quoting Vic Rosenthal <vic at rakefet.com>:

> Glen Zook wrote:
>
> > The 1625 is the 7-pin "medium" base and not octal.
>
> More 1625 trivia: one other difference between the 1625 and 807 that should
> be
> noted is that the 1625 has its supressor grid internally connected to the
> cathode, whereas it goes to one of the base pins in the 807.  This means that
> you cannot use an unmodified 1625 in a gg amplifier.
>
> To get really trivial, some brands of 1625 (which? -- now we have gone past
> the
> point at which even my knowledge of trivia is exhausted) had this connection
> made in the base.  So you could drill a small hole in the side of the base of
> these, heat the pin with a soldering iron, and stick a needle-nose plier in
> the
> hole to lift the wire from the suppressor and move it to another pin!
>
> It sounds silly, but since 1625's were essentially free in the '50's and
> early
> '60's many people did it.
>
> --
> 73,
> Vic, K2VCO
> Fresno CA
> http://www.qsl.net/k2vco
>
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