I'm building the project, Stereo VU Meter, I found here: **broken link removed**
Since I couldn't find the BC557 and BC547, I bought the BC557C and BC547B which has a much higher hfe value.
How can I modify the circuit to work with these transistors?
Don't know if this is important, but i'm using my car battery with a 9V-voltage regulator, and not a 9V battery.
Since I couldn't find the BC557 and BC547, I bought the BC557C and BC547B which has a much higher hfe value.
How can I modify the circuit to work with these transistors?
Don't know if this is important, but i'm using my car battery with a 9V-voltage regulator, and not a 9V battery.