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Started by phatt, June 11, 2015, 05:30:32 AM
QuoteOh I added the PDF for LaneyKB80, yes that 100k resistor (R2) does go back to common at the header plug, clearly drawn top right header plug.
QuoteHow high can you push these rather simple power amp designs like my Laney KD circuit when it comes to higher voltage rails?
QuoteI notice ESP mounts the bias sense transistor right on the predrive, hum?
Quote from: teemuk on July 17, 2015, 05:12:14 AMQuoteI notice ESP mounts the bias sense transistor right on the predrive, hum?Unlike in "Darlington pair" (emitter of the driver drives base), where we need thermal tracking of the output transistors, in Sziklai pair we must thermally track the driver transistors.Similarly, it is beneficial to thermally isolate driver and output transistors in Sziklai pair while in Darlington pair you need to thermally couple them through common heatsink.