Last month’s post about the Heathkit Oscilloclock generated tremendous interest, and I’ve heard from several folks keen to try their hand at preserving their own beloved instruments.
… so let’s take a brief look at what was involved in the Heathkit OR-1 conversion!
Approaches to conversion…
There are many approaches to retrofitting a scope into an Oscilloclock, but it really boils down to how much of the original circuit you want to re-use, vs. what you will bypass with Oscilloclock boards.
From 1947 to 1992, the U.S. based Heath Company produced electronic kits for everything you can imagine: radios, TVs, computers, robots, ham gear, and electronic test equipment. Yes, you guessed it – they also produced kits for oscilloscopes!
My Grandpa purchased one such scope, the Heathkit OR-1, around 1960. He wanted to kick off a new career in electronics repair, and the ‘build-your-own-equipment’ approach to training was in full bloom at the time. Also, since this was before the era of cheap overseas manufacturing, he could buy a Heathkit far cheaper than an assembled scope.
Heathkit OR-1 manual – a work of art
Unfortunately, Grandpa’s electronics career never really took off. But decades later, he introduced me to his gorgeous oscilloscope, and boy – did that kick MY career off! Much later, the OR-1 came to live with me. (You can read a bit more about my affinity for this scope in my History page.)
The problem is, I have too many oscilloscopes. But I don’t have enough Oscilloclocks. What more fitting way to keep Grandpa’s legacy alive, than to retrofit his Heathkit?
Oscilloclock.com proudly presents a new feature – Seasonal Treats !
This month, the ghosts come out of the attic and merge with the electron stream, leaving their telltale prints in the phosphor… but if you get too scared? Just push the button and blow them up!
I personally delivered the StokesScope Model 1 clock in late 2010. The excitement! The fervour! We were so giddy we had to take a break in the middle.
All went well except for 1 major mishap, which I will share in a future post. Subscribe so you don’t miss the gory details and lessons learned.
To be ‘green’ I re-used an old printer boxUnwrapping the control unitOoos and ahhhsSleek anodized aluminium knob gives great contrastTime for a break! (No, it’s not Hong Kong yet)Not as delicate as it looksCRT all set up…Let’s plug it in… with military spec connectorsLet the GPS settle in, and .. Voila!A year later… after a move… and Midnight in Hong Kong
