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Y63

Sensibly equivalent to:
63ME 6H5 CV1103 NR69 VI103 Y64
See also:
Tuning Indicators - CV1103 short entry
    
Extras ▼

 

The Y63 is a second generation tuning indicator with a 6.3 Volt heater. This type of indicator was used in many radios. The datasheet gives that the 6G5 is electrically identical to the Y63 but has a UX6 base cap.
The Osram lable for this M-OV valve. No other identification survives.
The triode with the uncoated cathode tube passing into the bowl wher the cathode is coated again.
The display will glow green when in use with the shadow changing size according to the input voltage.
The classic envelope is 38 mm in diameter and, excluding the IO base pins, is 93 mm tall.
References: Datasheet & 1040. Type Y63 was first introduced in 1937.

 

Pin Connections
IO
1
2
3
4
5
6
7
8
-
h
a
t
g1
-
h
k

 

Absolute Maximum Operating Conditions
CRT
Vh
Ah
Va
mAa
6.3
0.3
200
4.5
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated April 04, 2015.
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