Someone else's QRSS MEPT STATION
Look at the PA circuit.
http://www.zianet.com/dhassall/QRSS.html
Kind of an interesting approach to a PA.
The image is lifted from the PDF. The PDF is
pretty hard to read.
At first glance I would have thought that it is current hungry. On closer inspection
it may not be running in class A. The base is running slightly above ground with no
DC. Depending on how much AC is on the base this looks like more of a B, AB, or C
design depending on the base voltage rise. The emitter is almost at ground with only
2.2 ohms of resistance.
It might be interesting to model this and then build as a simple circuit see the results.
http://www.zianet.com/dhassall/QRSS.html
Kind of an interesting approach to a PA.
The image is lifted from the PDF. The PDF is
pretty hard to read.
At first glance I would have thought that it is current hungry. On closer inspection
it may not be running in class A. The base is running slightly above ground with no
DC. Depending on how much AC is on the base this looks like more of a B, AB, or C
design depending on the base voltage rise. The emitter is almost at ground with only
2.2 ohms of resistance.
It might be interesting to model this and then build as a simple circuit see the results.