Oscilloscope @ Blogwell’s Black
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2 Comments
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Ok, so where’s this dumpster at? Kick off another itteration of oscilloscope dumpster diving!
FWIW, I, too, fix up old broken test & measurement equipment because if it’s still mostly working after 40 years, it’ll probably be still mostly working in another 40 years. Lecroys aren’t that hard to fix, if you’re feeling in the mood. The ones I’ve messed around with use pretty simple op-amp-based front ends, which are what blow out. (My old HP scope, a 172 similar to yours, doesn’t care if I hit it with 300 volts by mistake: I’ve tripped a 15 amp breaker through the scope and it was fine.)
But the other problem is that as new monolithic unrepairable cheap consumer stuff has flooded the market, it’s driven down the price of the older, good stuff, so it’s cheaper to get on ebay and buy yourself a lecroy 9420, great at 100mhz, for $200 than to try and fix up yours.