R P M regenerative set from Chicago?
 

You could say the apple fell far from the tree, I found this radio in Armstrong British Columbia only 2100 miles from Chicago! I will confess that i realy was not intrested in the radio, Despite the fact it could not produce a raster i was spell bound by it's ornate beauty and took it home. Help me, i have come up empty handed in my search for historical imformation.
http://www.pbase.com/redraster/image/130536753.jpg
Six dials

http://www.pbase.com/redraster/image/130536768.jpg
Six UX201As

http://www.pbase.com/redraster/image/130536787.jpg
A label, my only clue of origin

http://www.pbase.com/redraster/image/130536874.jpg
Part of tuning section

http://www.pbase.com/redraster/image/130536801.jpg
Detector and tuning stages

http://www.pbase.com/redraster/image/130536798.jpg
Audio amplifier

http://www.pbase.com/redraster/image/130536960.jpg
Bread board wiring, also a quality inspection label

Having seen this set personally, I can concur about it's incredible aesthetic beauty. This is also stunning photography, RR. The three tubes in #6 are downright sexy. I wish I could claim this work, but I can't! Bravo!!

Gives all its meaning to the word 'tuning'...

Pretty! :thmbsp:

So is the front panel glass or did somebody add a plexi panel later?

jr

That is plumb gorgeous. I can't wait to see the raster it makes. Wow.

Wow! That's a beautiful radio. I can't believe how clean it is inside. Are those tube sockets chrome plated ?

In that era, probably nickel. They sure are shiny.

Trying to tune that thing must be a bear!

Jr; Glass is used in the front with cut outs to fit around the controls and how many trys it took to get a good piece of glass would be most intresting. A close look at the photos 4,5 and 6 show that the glass was hand cut.
Reece; I have yet to power it up, I suspect it would produce a soft red glow instead of a brightly lit raster.
Bandersen;Yes the tube sockets are chrome plated, The radio came from an area that has low humidity and the dry dust was easy to clean off
using light compressed air and a soft brush.
Thanks for looking and your comments.:yes:

Very nice circa 1920's radio. The tag on the bottom looks like it may be a factory set. The front panel shows jacks for what would be a horn speaker and/or headset. The back shows terminals to hook up the battery power supplies to power the radio.

The tag on the front glass makes me think that this may have been an RPM manufactured set to show off RPM manufactured radio parts. As a long time collector of 1920's era radio, if it were mine I would certainly find a place of honor for it in my collection.

I hope this helps...

BR,

Terry

Thanks Terry; For your insight on this ornate obscure piece of technology,The top does separate easily (that will be another round of pictures including infared exposures when i fire it up for the first time). Funny how i found this one, I picked up a Admiral 24X12A bakalite tv and on the way out out of the store i noticed a Radiola 100 loud speaker and the RPM. Although it falls short of the highly desired Atwater Kent bread board sets and say a Northern Electric with peanut tubes, It does have a visual appeal.

Early 'printed circuit' layout. Nice, indeed.:yes:
Bill(oc)

That sort of wiring was used on the underside of telegraph instruments and other early electrical devices, before radio. In many cases, where the wooden base was to sit right on the table with no legs to elevate it, grooves were knifed into the wood and the bare wire was embedded in it so a smooth bottom surface was presented. Sometimes that would be entirely covered with felt.