- Hi and Lowpass Filters (Receiver only)
- GPS Referenz 10MHz (Kit, request)
- Microphone pre-amp SSM2167
- Audio Limiter/Compressor
- AM – PLL Broadcast Modulator 531kHz
- 4W PLL Broadcast Transmitter 88 – 108 MHz
Helvetic Climber – Radio electronics – Geek & Techy