Hello! an interesting design is the Power Follower 99, similiar to pathos amps....the designer's Andrea ciuffoli have a website: www.audiodesignguide.com ... if you couldn't find the schematics write me and I can mail you the copy of the schematics appeared in the Italian DIY magazine "costruire HI-FI" ... ;-)
The power follower was the first Class A amp that I built. It is only ok in my book and its output is capacitively coupled so there is that problem too... but its a good beginners amp to build. When you shop for heat sinks decide on what you want and then double that size and you might have enough. For that size amp it runs really, really hot!
Mark
Mark
Hello! yes the output stage is decoupled By a 4700 uF capacitor to block the DC....but you must consider thath most of the design with no output capacitors have a double power supply (in this case tha amp work with a single power supply...) so the capacitors on the signal path remain two....
I have buildt other class A amp (this one is no the best but not so bad... ;-) )...
I post the schematic...
I have buildt other class A amp (this one is no the best but not so bad... ;-) )...
I post the schematic...
--- most of the design with no output capacitors have a double power supply (in this case tha amp work with a single power supply...) so the capacitors on the signal path remain two....---
This kind of amps can deliver DC, so their power supply cannot be considered in the signal path. If it were, the caps would limit the low frequencies response.
This kind of amps can deliver DC, so their power supply cannot be considered in the signal path. If it were, the caps would limit the low frequencies response.
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