Tube Brands

[dieseljeep]

Originally Posted by Boobtubeman

The FOMOCO tube looks like a dealer item like what would be found in an old FORD car radio perhaps?

SR

According to a Motorola service manual, Ford motor company handled the warrantee repair claims on Motorola built radios, where Motorola handled the claims for their radios built for Chrysler, AMC, International truck, Jeep ETC.
Evidently, Ford bought their radios "AS-IS" and covered the repairs themselves.
Tubes stamped FOMOCO, should have a letter stamped next to the logo, stating who made the radio.

[Charlie]

Originally Posted by dieseljeep

Tubes stamped FOMOCO, should have a letter stamped next to the logo, stating who made the radio.

Interesting. There is a letter B to the left. Codes on the tube appear as follows on a 6X4...

322-1
5-18
B

This morning I came across a 6GH8A by Mitsubishi. Was the 6GH8A ever used in items other than TV sets? This one MUST have come out of a television.... it was pretty weak.

I often see Delco tubes... I even have a late-30's Delco radio. Sams shows that Delco had about 4 television chassis back around 1949/1950. In the past week, I've found a few Delco 6AU6's.

[N2IXK]

The 322-1 code indicates that the tube was actually made by Tung-Sol, and branded for FoMoCo.