Hi All-out circuits,

I am using two square wave oscillators, when i put the outputs together they modulate. you can see the schematic attached. I don't want this modulation. Is there a way of fixing this, maybe an idea to use a diode on each output?

 

Hello,

IC1 is the 555 oscillator.
IC2A is a divide by 2 circuit.
What do you mean with modulate ?

Bertus

 

Hello,

IC1 is the 555 oscillator.
IC2A is a divide by 2 circuit.
What do you mean with modulate ?

Bertus

Both square waves connect as one modulating pattern. it sounds great but I would like to have two separate square waves on the oscilloscope and speakers.

 

Hello,

Can you make some pictures of the scopesignals?
How is the decoupling of the IC's done?
Decoupling or Bypass Capacitors, Why?

Bertus

 

Here is some footage of me playing with the modulation.
The schematic itself is not mine so I just followed the design.

 

Why are you connecting the outputs?

 

It might help if you clued us in as to how the two signals are combined.

Bob

 

Hi All-out circuits,

I am using two square wave oscillators, when i put the outputs together they modulate. you can see the schematic attached. I don't want this modulation. Is there a way of fixing this, maybe an idea to use a diode on each output?

Please show the rest of the schematic datasheet (source of your attachment in post 1).

 

It might help if you clued us in as to how the two signals are combined.

Bob

I have two circuits and connect x2-2 on the first to the second circuit and connect the x2-1 on the first circuit to the second circuit

 

Please show the rest of the schematic datasheet (source of your attachment in post 1).

I was emailed this data sheet so sorry i don't have a source

 

I was emailed this data sheet so sorry i don't have a source

Use the Upload file button as you make a post and attach the datasheet. PDF files and most image files are acceptable.

 

Use the Upload file button as you make a post and attach the datasheet. PDF files and most image files are acceptable.

 

@Tony Elliott
Is the rest of the document a secret?

 

Hello,

Your 555 circuit is producing needle pulses, as there is no resistor in the discharge line.
See the following drawing for more info:



Bertus

 

I have two circuits and connect x2-2 on the first to the second circuit and connect the x2-1 on the first circuit to the second circuit

There are 4 connection points. You mention only 2.

 

There are 4 connection points. You mention only 2.

the first two connections are the battery inputs,

 

Hello,

Your 555 circuit is producing needle pulses, as there is no resistor in the discharge line.
See the following drawing for more info:

View attachment 108957

Bertus

this looks interesting, I will experiment with this, I could even make pulse with stretcher.

 

So one square wave oscillator is supplying power to a second square wave oscillator. What do you expect the result to be?

Bob

 

So one square wave oscillator is supplying power to a second square wave oscillator. What do you expect the result to be?

Bob

No there are two of these circuits, and when both outputs are connected in a passive mixer I get two modulating square waves.

 

Hello,

What schematic do you use for the mixer for the two signals?
And Again: How is the decoupling of the IC's done?
Decoupling or Bypass Capacitors, Why?

Is your intention to make music with the generators?
Then this site has a lot of schematics to create synthesizer circuits:
http://www.musicfromouterspace.com/index.php?MAINTAB=SYNTHDIY&VPW=1910&VPH=724

Bertus