Very much On Topic: Integrated Vacuum Tubes

William Donzelli aw288 at
Thu Apr 21 20:23:13 CDT 2005

> I also have an assortment of T1A sized tubes (1.125" tall by .360 dia glass)
> most of them are 5899 and 5636 RF pentodes.

Those are not T1 bulbs - they are T3 bulbs - standard subminis. T1s are
like NE-2 sized. Sylvania managed to cram two triodes into a T1, but they
never left the lab.

William Donzelli
aw288 at

More information about the cctech mailing list