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UY1N

 
    
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The Mullard UY1N is a half wave rectifier designed to operate in AC/DC mains equipment. The 100 mA heater is designed for series heater chain use.
The UY1N can supply up to 140 mA of output current and is rated to work with a large maximum reservoir capacitor of 50μF.
The anode face view. The cathode tube can be seen through the central holes.
A closer view of the electrodes. The anode is X shaped in cross section.
The wide glass tube envelope is 29 mm in diameter, and excluding the IO base pins is 80 mm tall.
References: Data-sheet, 3002 & 1040. Type UY1N was first introduced in 1941. See also 1941 adverts.

 

Pin Connections
IO
1
2
3
4
5
6
7
8
h
nc
a
nc
ic
nc
k
h

 

Absolute Maximum Operating Conditions
Rectifier
Vh
Ah
Va
mAa
50
0.1
250
140
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated January 07, 2022.
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