Thread: Sony Surprise
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Old 12-22-2008, 05:17 PM
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AUdubon5425 AUdubon5425 is offline
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Location: Picayune, Miss.
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Sony Surprise

I was repairing some battery corrosion damage on a 1960 Sony TR-814 AM/SW set last week, when I noticed something I had never seen before - a loose resistor that had never been soldered to the board!

It is a 220 ohm between the driver transistor and the secondary of the output transformer. It's on the lower left of the circuit board pictured below.

I only played the set for a few seconds before going to work on the corroded battery terminals, but it sounded alright - nothing jumped out at me as wrong. Goes to show - you never know!
Attached Images
File Type: jpg tr814 02.jpg (61.4 KB, 1 views)
File Type: jpg tr814 01.jpg (94.5 KB, 0 views)
File Type: jpg tr814 04.jpg (119.2 KB, 2 views)

Last edited by AUdubon5425; 04-22-2010 at 12:59 PM.
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