- Original designation is "Silicon rectifier bridge, B 80 / 70- 20Si"
- suitable for original SIMSON number: 502121
- Assignment: View from the page with the type designation. The contacts show upwards
- 1. top left: Alternating voltage (gray / red)
- 2. top right: minus (brown)
- 3. below links: plus (to Elba 59a)
- 4. lower right: alternating voltage (red / yellow)
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