• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Old Tektronix booklet

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Radio stations expect equipment to last a generation or two so paperwork hangs around an eternity. Cleaning out files today I came across this treasure from the mid-Seventies in new condition and thought someone might get a kick out of it. Shaggy techs, white tees and open collars, a Dynaco A25 and a MacIntosh. It's a walkthrough on testing a mono Mac with Tektronix's 5L4N LF spectrum analyzer.


An externally hosted image should be here but it was not working when we last tested it.
 
valve power said:
I'm sure I read somewhere that Tek have given permission to copy manuals older than X years.
Tek Scopes group?

This was also mentioned on rec.radio.amateur.boatanchors. Perhaps if it's true, Tek's customer service can email a copy of the statement to keep our admins from having DMCA fits ;)
(who's idea was it to put this place on a US server anyway?)
 
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