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4C35

Sensibly equivalent to:
CV1787 FX2505 PL435 XH8-100
    
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The 4C35 is a hydrogen thyratron designed for switching in line modulator circuits of microwave radar. Other uses include induction heating and pulse modulation.
The main discharge takes place within the screened cylinder.
The anode lead is taken in a glass tube into the screen.
The circular anode can be seen through the mesh.
The lower end of the electrodes.
The large four pin base and locating pip on the left of the skirt.
This exhibit came complete with ceramic base.
The ceramic base is 64 mm in diameter. The ceramic is 16 mm thick and the overall height including sockets is 28 mm.
The underside of the base.
The base makers logo and identification.
The wide glass tube envelope is 63 mm in diameter, and excluding the base pins is 155 mm tall.
References: Datasheet. Type 4C35 was first introduced in 1954.

 

Pin Connections
1
2
3
4
tc
g1
h,k
h
k
a

 

Absolute Maximum Operating Conditions
Thyratron
Vh
Ah
Va
6.3
6.0
2,500
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated September 09, 2013.
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