TIP41 aren't suitable due to the low 40 volt rating. For a 70 volt supply (which is what this amp shows and is what the devices can see under drive) you must use at least TIP41B (marginal at 80 volt) or preferably TIP41C (100 volt)
Its easy to work out.
-/+ 35 volt rails gives an output swing of -/+35 less say 5 volts losses across the transistors and 0.22 ohm resistors.
So -/+30 volts is 21 volts RMS. (calculated by taking Vpeak which is 30, and multiplying by root 2)
Watts is V squared/R so put your own numbers in now. For example its 27 watts into 16 ohm.
-/+ 35 volt rails gives an output swing of -/+35 less say 5 volts losses across the transistors and 0.22 ohm resistors.
So -/+30 volts is 21 volts RMS. (calculated by taking Vpeak which is 30, and multiplying by root 2)
Watts is V squared/R so put your own numbers in now. For example its 27 watts into 16 ohm.
Credits
or also his guitar amplifier, apart for your (questionable, as others have reported) choice of the outputs.
In such case at least credits should be given to the original author.
However, such amplifier (in its evolution P3A) has proven really good to me for P.A. use, in "emergency" situation.
See - THIS THREAD
It looks like the Rod's ESP original P3 Project - see- High Quality 60 Watt Power Amplifier
or also his guitar amplifier, apart for your (questionable, as others have reported) choice of the outputs.
In such case at least credits should be given to the original author.
However, such amplifier (in its evolution P3A) has proven really good to me for P.A. use, in "emergency" situation.
See - THIS THREAD
Last edited:
- Status
- Not open for further replies.