I ran across this today, wanted to share.
http://www.ifwtech.co.uk/g3sek/tr-bias/tr-bias1.htm
73
Jeff
http://www.ifwtech.co.uk/g3sek/tr-bias/tr-bias1.htm
73
Jeff
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Good info link about Bias
- Thread starter AudioShockwav
- Start date
it's very comprehensive and gives every resistor value one could need, so probably the best openly documented circuit i've seen. a pity however that it doesn't include thermal tracking and integrating that in a half assed manner would spoil the linearity.
Quote from article
" TR2 acts as a temperature sensor, so the best place to track temperature variations is to bolt TR2 to the heatsink, very close to the flange of the PA transistor TR1.
TR2 is not grounded, so don't forget to use insulating hardware!
"
It shows the mounting of the sensor at the bottom of the page.
73
Jeff
" TR2 acts as a temperature sensor, so the best place to track temperature variations is to bolt TR2 to the heatsink, very close to the flange of the PA transistor TR1.
TR2 is not grounded, so don't forget to use insulating hardware!
"
It shows the mounting of the sensor at the bottom of the page.
73
Jeff
