150-0048-01
The Tektronix 150-0048-01 is a 5 V, 60 mA, T-1 incandescent lamp (type #683).
![](http://w140.com/tekwiki/images/thumb/a/a3/Tek-pushbutton-light-on.jpg/300px-Tek-pushbutton-light-on.jpg)
It is used in various Tektronix equipment, especially the 7000-series oscilloscopes and plugins (e.g. in the back-lit switches), and the readout system of the 576 and 5030.
Modern Replacements
- JKL 683 sold at Mouser, part number 560-683 (rated 100,000 hours)