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SX-4000

 
    
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The Schickerling S-4000 and box were purchased from a radio shop in New York City. Where it was found indicate that there was a court case. This was probably because the valve did not function or function properly.
The paper label on the valve gives the name of the retailer as ..althal Electric Co Inc of 142 East 86th Street New York City. The date on the label is December 4, but the year is not clear.
The original box. This was found in a filing cabinet of the New York City law firm of Pennie, Davis, Marvin and Edmunds. Their address being 165 Broadway.
Thanks to Joe Gruber for sending the images.
The envelope is  mm in diameter and, excluding the UV base pins, is  mm tall.
Reference: Joe Gruber.

 

Pin Connections
UV
1
2
3
4
g1
f
f
a

 

Absolute Maximum Operating Conditions
Triode
Vh
Ah
5.0
0.25
Updated February 12, 2021.
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