The attached schematic is a Guitar To Home Stereo Preamp.

 

Is there a question?

Also, the schematic has some non-standard features. What is the source?

ak

 

See


Freq=1kHz


Freq=5kHz

 

Is there a question?

Also, the schematic has some non-standard features. What is the source?

ak

I don't have any questions. The source is a single 9 Vdc supply.

 

See
View attachment 354032

Freq=1kHz
View attachment 354033

Freq=5kHz
View attachment 354034

Pins 1 and 5 are offset null
Pin 2 is inverting input
Pin 3 is non inverting input
Pin 4 is V-
Pin 6 is output
Pin 7 is V+
Pin 8 is no connection

 

The attached schematic is a Guitar To Home Stereo Preamp.

Certainly it is some kind of amplifier, although I see nothing indicating the input or output in the first post. AND the presentation is indeed non-conventional.

 

I don't have any questions. The source is a single 9 Vdc supply.

Not the power source, the source of the drawing. Who designed the circuit?

ak

 

Certainly it is some kind of amplifier, although I see nothing indicating the input or output in the first post. AND the presentation is indeed non-conventional.

Substitute the signal generator with a guitar. The resistor that is labeled ZL and 10K is not an actual part in the circuit. ZL and 10K refer to the load impedence, placed on the output of the op amp.

 

Not the power source, the source of the drawing. Who designed the circuit?

ak

The circuit is designed by me. Paul Bober.

 

Are you questioning this circuit,or what? Could it be you are trying to brag? A little context would be nice.

 

I see nothing wrong with the circuit. It should function and provide gain. The gain will be quite high, but with a 9 volt battery and the input biasing, the stereo system will be the first section to produce distortion, well before this circuit starts clipping.
The circuit is a variation of the classic single supply non inverting amplifier.
For use as a guitar adapter the Twill need to provide shielding and adequate ground integrity.

 

I see nothing wrong with the circuit. It should function and provide gain. The gain will be quite high, but with a 9 volt battery and the input biasing, the stereo system will be the first section to produce distortion, well before this circuit starts clipping.
The circuit is a variation of the classic single supply non inverting amplifier.
For use as a guitar adapter the Twill need to provide shielding and adequate ground integrity.

The circuit has a gain of 4. RCA line inputs on home stereos are -10 db, and input impedance can range from 10K - 50K per channel.

 

The circuit has a gain of 4. RCA line inputs on home stereos are -10 db, and input impedance can range from 10K - 50K per channel.

OK, I was thinking of a lower impedance guitar output. A gain of 4 is a good safe choice. No clipping.

 

See