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- * [[1S1/Repairs|David Wise 1S1 Repair Notes]] ...pling diodes|four-diode]] sampling bridge, terminated within the 1S1. The 1S2 uses a two-diode feed-through sampler, typical for TDR instruments. ...4 KB (647 words) - 18:57, 14 April 2024
- *[[1S2]] *[[1S2]] ...44 KB (4,384 words) - 05:27, 17 May 2024