Hi Mark,
The resistor in question is still in tolerance. The thing that made me start looking at that one is that other versions of the readout board have a pot for character height. Given that, I started experimenting with some lesser values and found that about 1k ohms gave me much better results. The tall characters are nice but when they're both bumping at the top of the graticule line, then I found it annoying and, without adjusting vertical centering to accommodate that, this seemed to be a good alternative. I just wonder what prompted the Guernsey folks to do that (along with several other tweaks in those mods).
Thanks,
Barry
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Barry,
I wonder if some of the resistors on that board are out of tolerance. There are
ones that should be raised in wattage. Ones to the E and C of the outputs
should be 1/2W with a few others that 1/2W is advised. Some models of the
boards have a 430 ohm 1/4 resistor that is usually hot to touch if not already
discoloured. That one needs to be 1W. The 7704A board does not have this
resistor.
Mark
