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Old 11-02-2010, 02:06 PM
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bandersen bandersen is offline
RCA 741PCS
 
Join Date: Mar 2009
Location: Chicago, IL
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Here's another curious thing I found in this set. A string of five 1W resistors in the video amp. 5.1K + 5.1K + 5.1K + 5.6K + 5.6K = 26.5 K


The schematic actually calls for three 11K + 10K + 5.1K = 26.1K. There aren't any taps and it's not high voltage so I assume it's to create the oddball value of 26.1 K ?


The vertical oscillator and amp circuitry was so hacked up I stripped it down and rebuilt it with the correct values. I couldn't find a 0.062 uF in tubular form so went with the boxy PC mount package.

I mostly used new carbon composition resistors and Cornell Dubilier poly caps. I didn't bother restuffing them since most had been replaced anyway.

On the far left there's a 2.2 M resistor that's open and was repaired with a 5.6M dogbone Most of the other old replaced caps and resistors were the wrong value too.
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Last edited by bandersen; 11-02-2010 at 07:56 PM.
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