Day 00 - Background and examination.

April 28, 2020

The history

I acquired this oscilloscope at the Hunstville, AL hamfest for $40.  The seller assured my that it worked the day before, but I didn't believe him because if it was operational, it would have been much more expensive of a scope than $40.  I gave it some thought and thirty minutes later, I decided $40 was an acceptable price for a dead boat anchor.  If it actually worked, well, that would be a nice bonus.

The scope was dead on arrival, so I stored it away.  I powered it up and inspected it internally and discovered multiple power supply outputs were not operational.  I did not document the specific missing voltages.

As I needed to fly to Europe for an extended stay, I shelved the project for 6 months.

The Goal

To have an operational oscilloscope by remaining faithful to the design.

I intend to:

• Replace consumable or high risk components with modern equivalents that meet or exceed the original specifications.
• Maintain as much of the original design as possible.
• Perform a calibration to ensure the oscilloscope is able to perform within it's original standards.