Breeze amplifier (current output, without feedback).
I'm sorry dear audience for the bad English.
As a replacement of the classic triode tube PP amps.
With this task, he successfully managed.
The first model was established 2.5 years ago.
I'm sorry dear audience for the bad English.
As a replacement of the classic triode tube PP amps.
With this task, he successfully managed.
The first model was established 2.5 years ago.
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It look's there's some balancing adjustment vr's in the i/p stage..the amp does not seem to have a zobel circuit on the o/p end a 10 ohm 5 watt plus a 100nf would do here..
source follower J-FETdriving
common base BJT driving
emitter follower BJT driving
common source MOS-FET
current source output
with no closed loop feedback (except for DC)
Interesting circuitry
Any distortion tests done?
common base BJT driving
emitter follower BJT driving
common source MOS-FET
current source output
with no closed loop feedback (except for DC)
Interesting circuitry
Any distortion tests done?
Zobel at the amplifier output is not needed.
It measured the output impedance (without ballast resistor 200 ohms) 600 ohms.
Output current proportional to the input voltage.
All stages except the output operates in class A.
It measured the output impedance (without ballast resistor 200 ohms) 600 ohms.
Output current proportional to the input voltage.
All stages except the output operates in class A.
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IMD is very close to the harmonic distortion. Fundamental harmonics - 2 and 3, the highest decrease rapidly. Slowly increased with increasing power and range is always falling.
Cf measurement at 5W into 8 ohms in investing.
Design has turned out due to the fact that it was possible to find and pick up really jfet complementary pairs of transistors for low-power amplifier input.
Cf measurement at 5W into 8 ohms in investing.
Design has turned out due to the fact that it was possible to find and pick up really jfet complementary pairs of transistors for low-power amplifier input.
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While tube PP that compare, much inferior Breeze by the sound.
This is in my opinion in a preview of all due to its very high output impedance. The second - with high linearity preliminary stages covered by local feedback in Class A at low variable voltage.
This is in my opinion in a preview of all due to its very high output impedance. The second - with high linearity preliminary stages covered by local feedback in Class A at low variable voltage.
Crossover speaker to work from the current amplifier, which include Breeze and Breeze 2.
Consecutive crossover, a division of 600 and 6000 Hz. Configure and test operation completed.
Consecutive crossover, a division of 600 and 6000 Hz. Configure and test operation completed.
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Thanks!
The third photo amplifier Breeze on the right side.
To the left of his tube push pull amp.
The third photo amplifier Breeze on the right side.
To the left of his tube push pull amp.
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