Monthly Archives: September 2014

Parts of a Vintage Radio – Middle Tube Era

Posted on September 8, 2014 by jwk

Photos with parts diagrams of a vintage tube radio – the Crosley 10-139, from about the middle of the tube era. Click each photo for full size.  

Posted in Commentary, Photos, Radios and Tubes, Resources, Vintage | Tagged , , , , , , , , , , , , , | 3 Comments

1958 Zenith HF1284 (Chassis 12Z20) Hi-Fi Console Repair

Posted on September 5, 2014 by jwk

This 1958 Zenith Hi-Fi came into my shop for a full overhaul including an electrical repair, dial re-stringing, and some work on the turntable. These vintage hi-fi consoles are some of the best sounding pieces of vintage gear around, and this one’s no exception with a pair of 12″ woofers and a pair of electrostatic tweeters. Read more for details!

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Check it out at Rain City Audio Continue reading →

Posted in Hi-Fi, Radios and Tubes, Vintage | Tagged , , , , , , , , | Leave a comment

HP 1405A Plug-In Mystery: Which Is It?

Posted on September 1, 2014 by jwk

I’m fixing up an HP 143A Wide-Screen Mainframe Oscilloscope, which has a very big selection of plug-ins to provide a variety of functions. The oscilloscope has symmetrical vertical and horizontal circuits, so it can be used as an X-Y amplifier … Continue reading →

Posted in Electronics, Gadgets, Photos, Test Equipment, Vintage | Tagged , , , , , , , , , , | 16 Comments