The attached amplifier circuit is the result of many hours of study
and development. It is an audio amplifier that can deliver a
continuous power of 250W at 8 Ohms or 450W at 4 Ohms. The resultant
distortion figure is around 0.1% for the higher power and about 0
.09% for the lower power.
I arrived
On Tue, 29 May 2018 14:16:02 +0200
Edward Bartolo wrote:
> On 28/05/2018, dan pridgeon wrote:
> > I hope you will publish your circuit and its description soon. I'd
> > like to study it. (a .png would work if you have a sketch of it.)
> > Thanks. Dan.
> >
>
> I am afraid there is nothing ne
The circuit I sent you is not finished yet. Yesterday, I connected it
to the output stage to test how it behaves. At first, it oscillated at
a frequency of 660kHz. I realised this because the heatsink started
getting steadily hotter. To decouple high ultrasonic frequencies I
used a decoupling capac
On 28/05/2018, dan pridgeon wrote:
> I hope you will publish your circuit and its description soon. I'd like to
> study it. (a .png would work if you have a sketch of it.)
> Thanks. Dan.
>
I am afraid there is nothing new to study. The input is fed to a
differential pair powered by a constant c
On 27/05/2018, Bruce Perens wrote:
> I salute your amplifier for its freedom from the evil emitter-follower
> created by Professor Leonard Puttering. :-)
>
Had that been the truth, the Professor would have been a very
successful electronics engineer. Nevertheless, he has a very
attractive salary.
Thanks for all replies.
My first prototype test circuit seems to work as expected although I
haven't yet connected the output stage. Connecting a resistor, 10K
Ohm, from the inverting input to output, that is, the point between
the biasing diodes, resulted in an ouput voltage of 0 Volts. This
clea
Edward:
> Warning: Out of Topic. No relation to Devuan but to technology and
> electronics.
>
> Since, I know some have knowledge of electronics and I am replacing an
> amplifier's pre-driver stages I am posting here.
...
If you post your question on
geda-u...@delorie.com
http://wiki.geda-pro
Warning: Out of Topic. No relation to Devuan but to technology and electronics.
Since, I know some have knowledge of electronics and I am replacing an
amplifier's pre-driver stages I am posting here.
At present, I am opting to use a simple circuit for testing purposes.
This circuit uses a differe
