Page Content - skip navigation
This triode has an unusual mottled green bakelite
base. Made on 23rd. August, 1927*. Possibly a
below specification Mullard PM2A, but it does not appear in any of
the 1930s equivalent lists I have. It is certainly an azide process
valve. It is rated for a maximum anode voltage of 100V versus the
150V rating of the Mullard valve.
*The date is engraved on the envelope.
This page last modified by AJC on Friday, 26-Mar-2010