Hi All

I am preparing for my next restore and am chasing down some details on a Stromberg-Carlson that I cant work out what model it is.
the Details as found are:
6A7, 6K7, 75, EL3N, 80 (All may have been changed especially the 6K7!)
Its a AC, DW, Mantel Model,
Case Size in mm 380w x 285d x 235h
The controls are:
Vol (Pot), Tone (Pot, not switch) Tuning and Band Change.

‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
Valve radios, They just don't make them like they used to

Thanks to Brad for uploading the photos...

Still haven't found any information on this. The end plan is to strip and repaint the chassis and start again with keeping it as original as possible i.e. hiding new caps inside old ones, New cotton covered flex where needed.

Just looking at it again I noticed that there is 3 different eras of resistors in it, at least 2 different cap types.

‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
Valve radios, They just don't make them like they used to

Hi Flakes,

You have a model 57 from 1937. See the serial number - the first two or three numbers indicate the model.

The valve line up I have is different to yours, though you did suggest some of the valves may not of been original. Check the power transformer to see if there is a 5 volt tap for the 80. The valves I have are: 6A7, 6D6, 75, AL3 & EZ3.

Stromberg Carlson 57 Circuit Diagram

I have a like-brand-new battery version of that radio. Uses 1.4V octals. Was actually a portable, made by installing the bakelite radio inside a wood-leatherette carry case, which had eventually rotted beyond redemption, but it protected the rest of the radio. It has its original factory transit tag! It's a runner too.

If you are interested in it, let me know, I need to cull my collection.

2nd go at writing this..... New Windows laptop and getting use to Windows Edge

Thanks for the information guys.

I was thinking that the 2nd if was a 6d6 as the 6k7 was not anywhere original! The EL3N would almost seem a suitable??? replacement for the AL3. the only part I cant work out is the rectifier. Looks to be an original 80. The socket doesn't seem changed but it could still be 40-50 years old.

Ian, I may take you up on your offer if the power tranny is stuffed beyond repair and IF are all stuffed. (In other words a complete write off chassis...)

The cabinet should clean up very well. there is only a very tiny crack on the middle screw of the back at the bottom. You would have to look very hard to find it especially after a dab of glue.

‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
Valve radios, They just don't make them like they used to

I took these photos last night. It's a variation on the theme. I noticed that one of the valves in Flakes' set is a P-base type, not too unusual for the era, though my set, also an all electric model, does not.

Stromberg Carlson built these chassis like tanks. This model is heavy for its size and the plinth for the tuning condenser promotes the rugged look. The cabinet is a different story - it's a three piece job (like an AWA R52 Radiola) and won't tolerate bad handling or over-tightening of the clamping bolts.

‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
A valve a day keeps the transistor away...

Just checked the 57. It shows up as a BC only set. mine is a DW one, Hence not finding that before.....

‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
Valve radios, They just don't make them like they used to

Finding different era resistors is never unusual, but they all have to be checked. The biggest problem I have had with that sort of thing was Midwest. Something like 16 Valves and several of the cans have a terminal block on the base inside the can.

Not only did the lazy swine that did it before do an untidy job & leave big blobs of solder by not clearing the terminals: Resistors were probably salvage and every plate resistor was wrong? No wonder he could not fix it, or get it to run right.

Marc

Something a bit odd here. I missed Flakes mention of a wave change switch.

I think someone has really "gotten" at Flakes radio. The serial number definately indicates a model 57. Also note that dial is for broadcast only.

Brads radio is a model D7 (again note the serial number), which is the short-wave version of the 57. I guess I'll now have to post the D7 schematic.

Stromberg Carlson D7 Circuit Diagram