Finally got my Kwelatones TL072 Audio Amp boxed and ready for some tunes! π₯³
It works!
Audio test was successful, quiet audio in -> loud audio out. Whoop, whoop!
Left/right balance testing confirmed that I had not got that reversed. Only mistake seems to be with the volume pot, as I have to turn it anti-clockwise to increase the volume. I think I will have to fix that π€
Other observations are a bit of hiss, and some mains hum from the laptop.
Next, a box to live in and then I can connect it to my RC2040 π₯³
The kit soldering and build is complete... Next I need to test it with some audio and then house it in the small tin, or maybe something a little bigger π€
Initial testing so far has just been connecting the 2x 9v batteries and switching it on. The power led illuminated, as hoped for!
I have now soldered all the PCB components. Off board potentiometers, audio sockets and power connectors next.
New project alert!
Actually, this project is linked to my #RC2040. I have noticed that the RC2040 supports speech synthesis using allophones. So I need a small #AudioAmplifier - and I just happen to have a kit for one from #Kwelatones, based in South Africa (long story there π).
It is a TL072 op-amp based amplifier.
I have only added the 9v batteries and the mint tin to house it in.
Anyways, my first step when starting a kit project is to check that I have all the parts, tick, tick, tick...
Ian Neill