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TS41

 
    
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The TS41 developed by GEMA from the TS4 is a power triode for transmitter use. The anode dissipation is 150 Watts. The mutual conductance of 6.5 mA/V is achieved at 1 kV on the anode and at a current of 300 mA. The filament is thoriated tungsten. In continuous operation the maximum voltage would be 2,000 V and 250 mA anode current. For pulse use the maxima were 8 kV and 5,000 mA per pulse.
The TS41 was used in pulsed mode for radar at a wavelength of 2.5 M. It is reported that in parallel push-pull a bank of six TS41's could generate megawatt pulses.
The control grid connection is to a side terminal. Sadly this exhibit has been broken.
The base showing the three connection sockets. One connects to the skirt and the other two are wired with heavy stranded wire for the filament connections. The anode connects to the top cap.
The pinch and lower connections. The filament connection passes through the pinch as substantial rods. The thoriated filament is folded into six vertical wires.
The anode connections. The substantial grid support wires pass into a ceramic insulator that also acts to support the three filament tensioning springs.
This image shows the grid wires and the filament. Also clearly visible is the folded anode and the method of attachment to the supports.
The wide glass tube envelope is 62 mm in diameter, and excluding the base is 175 mm tall.
Reference: Datasheet. Type TS41 was first introduced in 1942.

 

Absolute Maximum Operating Conditions
Triode
Vh
Ah
Va
Vg
mAa
gm
10.5
1.5
8,000
-
5,000
6.5
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated February 23, 2013.
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