PA0NHC 2mtr duplexfilkter. All drawings in high quality.

Click right on each picture, and save it to disk. Load it from disk in a drawing program, and print it from there. This gives the best resulution.

Klik met de rechter muisknop op elk plaatje. Save het naar schijf. Laad het in een tekenprogramma, en druk daar af. Dit geeft de beste kwaliteit.

The Philips trimmer condensor

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Copperclad plates.

 
Drillplan for the sidelid "M".

How to install sidelid "M" into the cavity.

Detail of the fine-tuning bus.

The plunger, and the assembly with the rod and the central conductor.

How to make the plunger in shape.

The topplate, the link and the central conductor (Detail!), and the assembly of it all.

The wooden caliper, for easy and accurate assembly of the central conductor / topplate / cavity.

The dimensions of the comleted duplex filter.

 
The toplid.

Another (side-)view on the links and notchparts.

The C-notch assembly. Mark how the cables are connected to the notchparts!

The L-notch assembly. Mark how the cables are connected to the notchparts!


 The completed filterwiring seen from the top. Observe how the cables are installed at the antenna connection!