Quote:
Originally Posted by old_coot88
And does R185a translate to R125 in Sams? If so, it's in parallel with the focus coil. If the focus coil were open, excessive voltage would appear across R185a, causing it to overheat.
Also the main B+ would drop some, likely causing insufficient width.
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Nope.
R185A was what I referenced from the Riders chimney wiring pictorial - it's equivalent to R127B(230 ohms) in Sams. Yeah, it's confusing as heck going back and forth between the two source materials, but I wanted to show the voltages as pictured on those resistors in Riders. The 1800 ohm resistor in parallel with the focus coil is not in the chimney. The resistors as shown in Sams that appear in the Chimney, are R127a,b and R128a,b,c. I went back and added the resistor values in red to the Riders pictorial.