[Milsurplus] BC-611 vibrator supply?

[J. Forster]

There were a number of choppers in metal cases about the size of 7 or 9 pin miniature
tubes, used in stabilized op amps, and they are very similar to vibrators. There used
AC drive. . OTOH, I think they came out in the late 1950s.
-John


WA5CAB at cs.com wrote:

> George,
>
> I never heard of it.  And would add that I never saw a plug-in vibrator
> through the end of their use that was small enough in diameter to fit into either
> the A or B compartments.  All of the common standard ones are larger in
> diameter than a D-cell.