Virtual Valve Museum

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CV5278 / ZM1020 / Z502M display tube

Size
 This valve measures 30x28mm overall and has a 13 pin B13B base

This display tube operates at 170V with 2mA anode current.

PinFunction
1n/c
2Anode
3Cathode 0
4Cathode 9
5Cathode 8
6Cathode 7
7Cathode 6
8n/c
9Cathode 5
10Cathode 4
11Cathode 3
12Cathode 2
13Cathode 1
Top view 		CV5278 / ZM1020 / Z502M