Quote:
Originally Posted by old_tv_nut
As I understand it, you did not remove R243 and R239? This means that you have reduced the resistance in this part of the circuit, and it will no longer bias the transistor or the CRT correctly. You must disconnect R243 and R239 and replace them with the pot (from H to L). 5k may or may not be close enough in this circuit - it is certainly outside the 5% tolerance of the original resistors. To get back to 4k ohms, put a 20k (18k or 22k is close enough) resistor across the pot (from H to L).
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Okay, so I need to remove one leg of the R240 (1.2K) and one leg of the R238 (2.7K) from the circuit. Then I need to place a 22K resistor across the 1 and 2 terminals. Finally I need to connect terminal 1 to the Hi tap, terminal 3 to the low tap and the lead going to the CRT on terminal 2.
Is it really necessary to use the 22K to bring it back to a 4K? I purchased the 5K based on a posting in an early thread. If 5K is too much, then would not turning it fully CW take care of that issue? I'm sure I'll never turn it that far as it would remove too much anyway.
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