[ARC5] What the......?

[J. Forster]

Being cynical, perhaps it was a marketing success for 'high vibration'
locations.

Weren't they used in early post-war car radios?

-John

================


> On 14 Mar 2014 at 13:58, J. Forster wrote:
>
>> I wonder why they went to Loctal, rather than 7 or 9 pin miniatures? The
>> smaller tubes were used in the VHF stuff.
>
> That is a good question to which I do not know the answer. I might hazard
> a
> guess: I have yet to find a bad Loctal tube unless the pins have been
> corroded off.
>
> Maybe at the time the Loctals simply had a proven track-record for
> reliability
> that the miniatures had not yet matched.
>
> I dunno. Just a guess.
>
> My very most favorite tubes are the subminiatures.
>
> Ken W7EKB
>
>