5651
![](http://w140.com/tekwiki/images/thumb/f/fd/Tube_5651.jpg/300px-Tube_5651.jpg)
The 5651 is an 87 V (at 3.5 mA) glow discharge voltage reference tube with a miniature B7G 7-pin base. It is used in the power supply of the 502, 581, 585, 549, 535 and other instruments.
Links
- 5651 @ radiomuseum.org
- 5651 Datasheet (PDF)
Pictures
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5651 inside a 549