Quote:
Originally Posted by jr_tech
Do you intend to experiment with other values of R-86 to address the slight crushing that you observe?
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Unfortunately, I don't have an assortment of 25-watt resistors on hand. I had to mail-order the replacement that I used.
The symmetrical edge crushing is slight, but noticeable with a test pattern. In a crosshatch pattern, the edge-most two or three columns of squares are narrower than the rest.
Any guess as to what range of values might be reasonable to experiment with? The stock resistor is 7.5K. One local store sells 25-watt resistors in values as high as 5.6K. For an experiment, I can wire resistors in series to make other values, of course.
Phil Nelson
Phil's Old Radios
https://antiqueradio.org/index.html