Looking for the knob pictured below.
It is the mode knob for a Hitachi V-302F oscilloscope however that type of knob was used by many Hitachi oscilloscopes through the years.
The knob is about 1/2” in length.
Please check your junque drawers!
![Cheesy :D](https://www.eevblog.com/forum/Smileys/default/xcheesy.gif.pagespeed.ic.KPzuH4J-TG.png)
If you happen to be getting the knob from a Hitachi V-650F oscilloscope that you are parting out I could also use the blue plastic lens cover as long as it is in nice condition. The one I have is full of pin holes.
![](https://klovimg.com/images/2018/09/09/knob1.jpg)
![](https://klovimg.com/images/2018/09/09/knob2.jpg)
![](https://klovimg.com/images/2018/09/09/knob4.jpg)
![](https://klovimg.com/images/2018/09/09/knob3.jpg)
![](https://klovimg.com/images/2018/09/09/Lens.jpg)