Hi!
attached is the psu diagram of an old Alice mixer. I noticed that the 7815 and 7915 has transistors attached to their ground pins, and even though I think I get what they're doing, I'm wondering if it's worth the extra cost and effort. Do they improve the performance of the regulators all that much? Was this common practice in mixers at the time?
attached is the psu diagram of an old Alice mixer. I noticed that the 7815 and 7915 has transistors attached to their ground pins, and even though I think I get what they're doing, I'm wondering if it's worth the extra cost and effort. Do they improve the performance of the regulators all that much? Was this common practice in mixers at the time?