A quick question: I need an RF probe (my scope is broken). I can't find a 1N34. I measured the forward voltage drops on various junkbox diodes and the 1N91's show about 0.11 V. This seems even *lower* than what I expect from a 1N34. Any reason not to use a 1N91 for this? -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco