batata004
Responses from batata004
| Voltage divider/attenuator @rodman99999 thanks a lot!!! You left me with a question: I took a look at the specification of line output, and it says it should produce a load between 100 and 600 ohm. In my case, if I use a potentiometer of 1k with a 100ohm (R2), what would b... | |
| Same power supply from piano and amplifier @imhififan I will try your suggestion of leaving the negative leg open, but if I do that, the circuit will be open! In the image below you can see how I connected the capacitors. I connected then in series on the GND line... if I leave any leg ... | |
| Same power supply from piano and amplifier Put a 2uF bipolar capacitor @imhififan I did what you said and it worked!!!!!!! UHULL!!! Using just one power supply, everything worked. However now I have lots of humming/noise on the speaker connected to the mini amplifier. I didnt have a... | |
| Same power supply from piano and amplifier @imhififan you are right, the GND of the power supply pin on the mini amplifier is connected to the GND of the LINE IN - there is continuity when using multmeter. @imhififan I only have ceramic capacitors and eletrolytic ones at hand now, but I ... |