03-30-2018, 07:49 AM
Hi, All:
About the lamp question, thank you Terry, for looking that up. I am going to see if I can figure out a way to cut the lamp wire from the big resistor and try putting in a separate resistor straight from the AC line to the lamps so they won't be subject to the higher voltage during filament warmup. Might not work, but I'm going to try it. It is a little bit of a tricky thing, since the lamps are stuck in that metal socket with no ventilation, so cranking up the brightness will crank up the heat as well. Don't want to shorten lamp life too much, and there is also the spectre of melting the sheet of plastic that makes the slit. More later on this.
About the bias cell, it might be next week, Ron. I'll post something about it after I figure out what to put in there. I have a decade box, but it might be just 1/2 watt resistors. Not sure if that is enough. Also a tricky situation.
About the lamp question, thank you Terry, for looking that up. I am going to see if I can figure out a way to cut the lamp wire from the big resistor and try putting in a separate resistor straight from the AC line to the lamps so they won't be subject to the higher voltage during filament warmup. Might not work, but I'm going to try it. It is a little bit of a tricky thing, since the lamps are stuck in that metal socket with no ventilation, so cranking up the brightness will crank up the heat as well. Don't want to shorten lamp life too much, and there is also the spectre of melting the sheet of plastic that makes the slit. More later on this.
About the bias cell, it might be next week, Ron. I'll post something about it after I figure out what to put in there. I have a decade box, but it might be just 1/2 watt resistors. Not sure if that is enough. Also a tricky situation.
