Maker Pro
Maker Pro

Troubleshooting

H

Herbert Blenner

Jan 1, 1970
0
The following wave file contains a voice with a peculiar distortion.

http://www.members.aol.com/hdblenner/doyouwant.wav

I have viewed an oscillogram of the waveform and based upon the
asymmetry conclude that failure of one stage of a push-pull audio
amplifier caused of the distortion.

I would appreciate any comments and especially welcome further
analysis.

TIA
 
J

John Woodgate

Jan 1, 1970
0
dated said:
The following wave file contains a voice with a peculiar distortion.

http://www.members.aol.com/hdblenner/doyouwant.wav

I have viewed an oscillogram of the waveform and based upon the
asymmetry conclude that failure of one stage of a push-pull audio
amplifier caused of the distortion.

I would appreciate any comments and especially welcome further
analysis.

A single-ended bipolar transistor stage with no standing current will
also produce this sort of sound. It's half-wave rectified, somewhat
biased off.
 
H

Herbert Blenner

Jan 1, 1970
0
John said:
A single-ended bipolar transistor stage with no standing current will
also produce this sort of sound. It's half-wave rectified, somewhat
biased off.

I agreed that improper design of a single-ended stage would cause
distortion.

However, an earlier portion produced by the same equipment contains a
mid sentence transition from symmetrical to asymmetrical audio
accompanied by a loss of volume.

http://www.members.aol.com/hdblenner/trackseven0636.wav

Herbert
 
E

ehsjr

Jan 1, 1970
0
Herbert said:
I agreed that improper design of a single-ended stage would cause
distortion.

However, an earlier portion produced by the same equipment contains a
mid sentence transition from symmetrical to asymmetrical audio
accompanied by a loss of volume.

http://www.members.aol.com/hdblenner/trackseven0636.wav

Herbert

So people are supposed to play guessing games while you
slowly dole out pertinent facts you have but hide from them?
 
F

Frithiof Andreas Jensen

Jan 1, 1970
0
Herbert Blenner said:
The following wave file contains a voice with a peculiar distortion.

http://www.members.aol.com/hdblenner/doyouwant.wav

I have viewed an oscillogram of the waveform and based upon the
asymmetry conclude that failure of one stage of a push-pull audio
amplifier caused of the distortion.

I would appreciate any comments and especially welcome further
analysis.

Travel Lightly and Swiftly: If all you carry is a hammer, the all your
problems become nails and then they can all be solved by percussive
maintenance (preferable preemptive).
 
Top