Today during my lunch break we took a drive to a local antiques shop. We’re not far from Strasburg PA, which is known for historical train stuff, so once in a while old telegraph equipment pops ups in the places near us. I didn’t luck out and find anything like that today, but I did stumble on some vintage test gear - a couple “milliammeters” some various volt and amp gauges that could be neat in a project, and one thing that I’m not familiar with - a “Cathode Follower.”
Searching Google for the make and model brings up a lot hits for old articles about accelerometer testing, one of which includes a block diagram of this device in between an accelerometer under test, an amplifier, and an oscilloscope.
Searching Google for the make and model brings up a lot hits for old articles about accelerometer testing, one of which includes a block diagram of this device in between an accelerometer under test, an amplifier, and an oscilloscope.
This leaves me asking a few questions:
Are the old milliammeters worth the $40 they’re marked at, are the volt and amperage gauges sufficiently cool and vintage enough to be worth around the $15 they are marked at, and lastly, WHAT exactly was this “cathode follower” normally used for?
Are the old milliammeters worth the $40 they’re marked at, are the volt and amperage gauges sufficiently cool and vintage enough to be worth around the $15 they are marked at, and lastly, WHAT exactly was this “cathode follower” normally used for?
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