|This Hallicrafters PM-23 speaker is one of the
more rare versions of this speaker. It has the very large magnet
on the back of the speaker (see pictures). Most of the Hallicrafters
PM-23 speakers had the small magnet and did not sound near as rich
and full as this one does. I believe they made these speakers
for the Halllicrafters SX-28 and SX-42 receivers, and the speakers
with the smaller magnets were made for the Hallicrafters SX-23, SX-24
and SX-25 receivers.
PM-23 speaker was manufactured from 1939 - 1944. Many were made without
the chrome "h" Hallicrafters logo on the lower left side of the grille.
Not adding the "h" may have been either a cost-saving measure or a
war-related saving of chromium.
still has the red Hallicrafters tag attached and the Hallicrafters
label on the black magnet portion of the speaker. The red
tag contains instructions to connect the speaker to the 5000 ohms
speaker terminal on the receiver. I connected this speaker
to my Hallicrafters SX-25 receiver, and it sounded great!