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K90B

 
See also:
Metal Striptease
    
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The K90B is a metal envelope barretter for regulating 300 mA heater chains
The thin metal tube envelope is 25 mm in diameter and, excluding the IO base pins, is 66 mm tall.
Reference: 3002.

 

Pin Connections
IO
1
2
3
4
5
6
7
8
-
-
r
-
-
-
r
r(tap)

 

Updated July 19, 2014.
shape:thin.metal.tube construction:glass.disc type:barretter age:1940.1950 base:io pins:8 pin:1.- pin:2.- pin:3.r pin:4.- pin:5.- pin:6.- pin:7.r pin:8.r(tap)
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