jubal81 Well-known member Mar 19, 2021 #1 Supposed to have some kind of temp/bias/servo thing and a pickup simulator. Sounds like some interesting stuff going on.
Supposed to have some kind of temp/bias/servo thing and a pickup simulator. Sounds like some interesting stuff going on.
Robert Reverse Engineer Mar 19, 2021 #2 There is a little opamp circuit that monitors the bias voltage and heats up a couple carbon comp resistors laying across the Ge transistors.
There is a little opamp circuit that monitors the bias voltage and heats up a couple carbon comp resistors laying across the Ge transistors.
jubal81 Well-known member Mar 19, 2021 #3 So they dial it in for like 95 degrees and then keep it hot? Funky.
N Nrgaposok New member Mar 24, 2021 #4 +1 would def buy as well. Yeah the impedance/pickup simulator aspect really interests me.
giovanni Well-known member Mar 24, 2021 #5 Crazy that they have a little Ge warmer! What if you’re in 108 degrees weather? Does it also have a tiny AC unit?
Crazy that they have a little Ge warmer! What if you’re in 108 degrees weather? Does it also have a tiny AC unit?
N Nrgaposok New member Mar 24, 2021 #6 If I understand it correctly, if the transistor is over the ideal temp, the current that runs through the 'attached' resistors is 'turned off'. So now the resistors act as heatsinks to cool off the transistor.
If I understand it correctly, if the transistor is over the ideal temp, the current that runs through the 'attached' resistors is 'turned off'. So now the resistors act as heatsinks to cool off the transistor.
