[CCTECH] ancient transistors found!

From: jpero_at_sympatico.ca <(jpero_at_sympatico.ca)>
Date: Sat Jun 8 16:58:53 2002

> > Here's this odd transistor only marking on it is:
> >
> > ADY26
> > >From web search, it is TO3 package. Felt like solid tin
> > plated copper w/ bolt stud.
>
> It's not TO3. TO3 is that diamond-shaped package, as used for the 2N3055
> (and if you've not seen one of those, you've never done any electronics
> ;-)). The ADY26 is in a TO36 package.

>:-P

Yes, I have seen TO3 packages in regular and small sizes. In fact
that dates me from that era (born '72 and while growing up
dissassembling old thrown out stuff had those package.)

Doesn't TO3 was also used in '60s electronic equipments as well?
May can't be. This package style seems to be '70s onwards era and IS
still in use.

Thanks for the correction on that TO36. website is wrong. :-( )

snip

>
> > What it is usually used in what equipment?
>
> An output transistor for a stereo amplifier?
>
> >
> > What era that transistors were used? 1960's?
>
> I think so. Towers doesn't give dates, but it's in another late 1960's
> databook of mine (and not in the early 1970's edition from what I can see).

Woah... that's OLD and *before* my time! Didn't expect that old
because this is one I didn't seen before so I suspected.
 
> -tony

Cheers,

Wizard
Received on Sat Jun 08 2002 - 16:58:53 BST