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Monthly Archives: January 2011
Neon Lamp Project: Continued
Continuing the Neon Lamp Project that I started a few months ago, I’ve put some more thought into it. I’ve decided to merge the Neon Lamp project with my Chronulator project. I’m planning to sell Chronulators constructed in vintage wood … Continue reading
Posted in Electronics, Projects, Radios and Tubes
Tagged 0A3, arduino clock, chronulator, neon bulb, steampunk
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Refurbishing a Capacitance Tester
Parts Express sent me an advertisement for a $45 capacitance meter today. This actually a pretty good deal, and it’s a useful thing to have around if you’re doing electronics work. I’d probably have bought one myself, if I didn’t … Continue reading
Posted in Electronics, Radios and Tubes, Vintage
Tagged capacitance tester, capacitor, eico, eico 950, electronics
1 Comment
Cost Engineering in the 1930s
It looks like cost engineering was already happening back in the 1930s: In the foreground, the destroyed original power transformer from the 1939 Zenith 7-S-363 radio; the rear, an equivalently rated replacement built in October 2010 by Edcor Transformer. In order … Continue reading
Posted in Commentary, Radios and Tubes, Vintage
Tagged cost engineering, fried electronics, transformer, zenith power transformer
3 Comments
Repairing a Vintage Radio (Coronado 907)
This is my first project, a 1940 Coronado model 907. This was originally a “high end low end” receiver: it only receives the AM broadcast band, but has three tone settings and mechanical push-button presets. It also uses 7 tubes … Continue reading
Posted in Projects, Radios and Tubes, Vintage
Tagged antique radio, coronado, coronado 907, how to fix an old radio, radio, repair, restoration, tube radio, vacuum tube
1 Comment
RETROVOLTAGE 
Cost Engineering in 2011
While the power transformer in my previous post may have lasted for years, it ultimately still succumbed to poor design and the transformer is widely regarded as a weak point in Zenith sets. Cost engineering to pick the exact right … Continue reading →