|[AMRadio] Anyone Using Tek 5403/5440/5441 or Similar?|
jcandela at prodigy.net
Sat Jul 15 23:16:52 EDT 2006
I did a little looking, and there is some emails concerning that scope of the Yahoo Tekscope group.
Maybe the folks there can assist you.
FWIW, I recently was given two dead 2215 Tek scopes. I got both working about 90% by simply changing out the power supply electrolytics, or well most of them. It seems that age has taken it's toll on these parts, and many of them were 'weightless', and had only a few mfd capacity when the rating was much higher. Seems like the capacitor juice done evaporated! It was amazing in that every time I changed another capacitor, some other weird problem went away. I never had to to crack open the schematics.
----- Original Message ----
From: Merz Donald S <merz.ds at mellon.com>
To: 'Amradio (E-mail) <amradio at mailman.qth.net>; 'Glowbugs (E-mail) <glowbugs at piobaire.mines.uidaho.edu>
Sent: Saturday, July 15, 2006 8:10:33 PM
Subject: [AMRadio] Anyone Using Tek 5403/5440/5441 or Similar?
At the North Hills hamfest on July 9, I picked up a Tek 5403 'scope (also known as 5440 or 5441) with 3 plug-ins in excellent looking but non-working condition. It lights up but gets no trace at all. Rooting around on the web, this looks like a 40-60mhz precursor to the 7000 series. It also looks like it doesn't have much value.
Is anyone using this 'scope? Any thoughts about whether it's worth trying to get it operational or not? Advice appreciated.
73, Don Merz, N3RHT
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