[Top] [All Lists]

Re: [TenTec] OT: Scopes

To: tentec@contesting.com
Subject: Re: [TenTec] OT: Scopes
From: Stuart Rohre <rohre@arlut.utexas.edu>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Mon, 20 Feb 2012 14:31:16 -0600
List-post: <tentec@contesting.com">mailto:tentec@contesting.com>
As someone else said, instrumentation scopes include a front panel Cal 
test point.  This is a source of a known voltage and frequency square 
wave train, which can be used to the input of each vertical channel to 
test calibration.  If it is as marked on the Cal point, the vertical 
channel is OK for amplitude.  Look at the squareness of the wave for 
frequency response.

If the trigger and timebase are working correctly, you can rotate the 
time per div. knob and trigger knobs an stop the procession of the 
square wave across the screen.  It should hold steady if you use DC 

Other ways are to take a battery powered signal oscillator along for a 
test source.

Rotate the brightness control and see if you can dim the trace 
completely, and turn it up far enough to be good in sunlight.
Same for focus, rotate it over its range and make sure a sharp trace is 
found at one setting.

Best of all take a technician along with you, who works with scopes in 
their job.

Tektronix and Philips both had booklets and now maybe we sites on how to 
use a scope.  John Lenk and others wrote troubleshooting books.

-Stuart Rohre
TenTec mailing list

<Prev in Thread] Current Thread [Next in Thread>