Article below is a part of the assembly process of the UHF duplexer – main article is HERE.
Drawing below shows a [AL100] – 8mm Aluminium End Cap Bottom.
Main purpose of the part is to protect everything what is inside of the duplexer’s cavity and also to house a tuning rod RX & rod TX– for a final frequency tuning.
![](https://www.rozenek.com/wp-content/uploads/2022/11/AL100-8mm-Aluminium-End-Cap-Bottom.png)
![](https://www.rozenek.com/wp-content/uploads/2022/10/AL100-8mm-Aluminium-End-Cap-Bottom-cutting-material-scaled.jpg)
![](https://www.rozenek.com/wp-content/uploads/2022/10/AL100-8mm-Aluminium-End-Cap-Bottom-turnning-scaled.jpg)
![](https://www.rozenek.com/wp-content/uploads/2022/10/AL100-8mm-Aluminium-End-Cap-Bottom-turnning-2-scaled.jpg)
![](https://www.rozenek.com/wp-content/uploads/2022/10/AL100-8mm-Aluminium-End-Cap-Bottom-drilling-scaled.jpg)
![](https://www.rozenek.com/wp-content/uploads/2022/10/AL100-8mm-Aluminium-End-Cap-Bottom-tapping-scaled.jpg)