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There was a group of tube companies from Pawtucket RI that I have not been able to find much about other than examples and tubes. Looking at the engraving on the bases of the tube for the company name, and a 3 digit code, I have concluded that the tubes in this group of companies had something to do with Triad radio tubes.

Below is the bases of 4 tubes. One Triad, one Long-Life and two Real-Tone. All have the 3 digit code, the first digit being a "T". All the boxes from this group of Pawtucket companies also have the same style of boxes. These companies are, All-Wave, Real-Tone, Royal, Long-Life, MidWest, Diktator, and Nu-Star.

I am not sure of this connection to Triad but the circumstantial evidence is there.

I have finally found definitive proof of the connection between Triad and at least the Real-Tone tube name.


Providence Journal April 1, 1934


Triad Tube Base

Long-Life Tube Base

Real-Tone Tube Base

Real-Tone Tube Base






Click to enlarge
All-Wave Tube Company
Pawtucket, RI
Type 58

Click to enlarge
All-Wave Tube Company
Pawtucket, RI
Type 34

Click to enlarge
Real-Tone Tube Company
Pawtucket, RI
Type 32

Click to enlarge
Real-Tone Tube Company
Pawtucket, RI
Type 2A5

Click to enlarge
Real-Tone Tube Company
Pawtucket, RI
Type 2A5

Click to enlarge
Real-Tone Tube Company
Pawtucket, RI
Type 2A5

Click to enlarge
Royal, Long-Life, Diktator, and Real-Tone
All tubes with similar boxes to All-Wave.
Photo by Larry Daniel.

Click to enlarge
Nu-Star
With similar box to All-Wave
Photo by Larry Daniel.

Click to enlarge
Nu-Star
Two Nu-Star Tubes
Nu Star 35-51 and a Nu Star 24A
Both with the Triad base markings
Photos by Fin Stewart
www.radiomuseum.org.

Click to enlarge
Midwest
Another tube with similar boxes to All-Wave.
Photo by Larry Daniel.


Air-Castle
This one is questionable
Same box style but????
Photo by Larry Daniel.

Click to enlarge
Real-Tone
Another tube with similar boxes to All-Wave.


Click to enlarge
Long-Life
Another tube with similar boxes to All-Wave.


Click to enlarge
Long-Life
Another tube with similar boxes to All-Wave.


Click to enlarge
Real-Tone
Another tube with similar boxes to All-Wave.



The Evening Standard
November 16th 1933.


The Indianapolis News
October27th 1933.


The Indianapolis News
October 3rd 1933.


The St Louis Star and Times
July 25th, 1934.


St Louis Post-Dispatch
March 28, 1934.


St Louis Post-Dispatch May 27th, 1935,


The Pittsburgh Press
May 24th, 1934,


The Pittsburgh Press
October 22th, 1934,


St Louis Post-Dispatch October 24th, 1934,


St Louis Post-Dispatch May 23rd, 1934,


The Tribune
March 16th, 1934.


The Eugene Guard
April 25th, 1933.


The St Louis Star and Times
July 25, 1935.


Estherville Daily News
February 6, 1934.


The Evening News
January 24, 1935.


The Evening News
December 6, 1934.


The St Louis Star and Times
January 14, 1937.


St Louis Post-Dispatch
July 25, 1935,.