http://2.bp.blogspot.com/_NVQujPOPx2...eg_radio_1.jpg
http://2.bp.blogspot.com/_NVQujPOPx2...eg_radio_0.jpg
Printable View
I can verify that barrel speakers make a nice novel addition to a game (bar) room.
Mine were made 30 years later. Can you identify them from the picture ??
They are an old classic..........
PC311914 on Flickr - Photo Sharing!
:)
Empire?
Grenadier 800's i believe.:DQuote:
Originally Posted by Panomaniac
More on topic, our local TV tech(in business since the 40's) demo'd a customer's vintage battery set for me a while back, i have to admit that it sounded amazingly good, possibly the best i've ever heard AM sound.
Also, per the article, PM loudspeakers in 1938? I found this very interesting/surprising. Would PM's have had a premium cost associated with them at that period in time?
I was surprised at that, too. And can't quite figure out how the speaker is driven off that 33 pentode. It seems to be directly coupled of the output tube.
Wacky stuff!
My guess is that the connection labeled "SP." is actually to the primary of the output transformer. In the old radios this transformer was often mounted on the loudspeaker.
:doh: I should have remembered that! As many of those old radios as I've been in.
Thanks Steve.
On second glance --- I don't see an output transfo, do you?
Hard to tell from the photo, but I think the transformer may be on the underside of the speaker motor, where the wires are headed. In this catalog page it can be seen how the transformers were often attached to radio speakers:
http://www.lansingheritage.org/image...at-Lansing.jpg
BTW, the Lansing 15X shown is the grandaddy of the Altec 15" cast frame drivers. I believe Lansing was building these prior to his involvement in the MGM Shearer Horn project, and may have been a factor in his being chosen for the design team.