DIY Six Stage Attenuator for High Frequency HF

If you have to deal with radio frequency more than very rarely, it is helpful if you can easily weaken the signals in discrete steps. 

So you can e.g. Bring the output signal of an HF generator to a different level than would only be possible with the generator's adjuster. 

There are many applications for a concealer when comparing or repairing receivers or with radio devices. Unfortunately, professional attenuator are quite expensive. 

Doing it yourself is worthwhile here because expensive electronics are not required

The Circuit Diagram of Six Stage Attenuator from Elektor Elektronic July Edition 2017 in Germany language 

Circuit Diagram

PCB Lay Out

Final Six Stage Attenuator Prototype with aluminum case

With Six Stage Switches for 0..31 dB in 1 dB Step

Prototype Final

Frequency Response 0....-31 dB