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Arny Krueger wrote:
snip You can find an audio interface that will outperform say a HP 334 for $30. For $200 you're in the same league as some of the older, but not all that old AP stuff. Trying to use a PC as a general purpose bench instrument is like the old race car guys that I used to hang out with. They would build a new big block Chevy and a Turbo 400 behind it every couple of seasons. They put in a dually one ton truck and pulled a trailer that would have been just about right for an old single axle B Mack around for the season. They got about five miles to the gallon under load too. When I got older, I'd ask them why they didn't buy a real truck, you know, air brakes, Fuller Roadranger, like a used Yellow or Roadway day truck. Well, license and insurance cost too much and you needed a "chauffeurs license" to drive it. (Those pre-CDL days!) Well okay, at least put a diesel and an Allison in the pickup, why don't you? Because we don't know how to work on them and you can't get them in the junkyard for a hundred bucks. Eventually they got tired of building "motors" (sic) for the tow truck and not the race car and put a 3208 Cat or a turbo 4-53 and an Allison or a Clark five speed in there. They then got like ten miles to the galllon and the truck rusted out twenty years later and the engine and trans still ran. The PC does okay as a controller or as a dedicated production test box with a buffered, isolated interface. But it is not like a scope or gen or analyzer that sits on the bench. |
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