Posted on Saturday, 13th December 2008 by Auw Jimmy
A Gainclone challenge? Why not? Solid state? Why? Why? Why? Why? Why? Wise man says ask “Why” five times. But I think I will end up with same answer Sorry! Just consider this as a small killing time, boredom destroyer project uh…
But remember, we are on crisis, so no budget!!! So, I also don’t want to spend any budget… Well, small budget is ok, but really-really small.
Let’s straight to the point and back to the topic: I want to try a LM1875 Gainclone Amplifier. This is not my first time building a Gainclone, but first time with LM1875. Gainclone becomes famous because this “simple chip amplifier” could sound beautiful – in 47 Laboratory 4706 Gaincard (retail price near US$ 3000) and Jeff Rowland Concentra (retail price around US$ 6500). FYI, Gainclone family has some models, like LM1875, LM3875, LM3886, etc. Each has different specifications, especially for power rating and speaker load impedance – but all amplifier with this chip will be called as “Gainclone”.
I’ve received the PCB from my friend at local DIY forum. Now, it’s time to pick my “agents” – I mean my components
“As always, should you or any of your IM force be caught or killed,, the Secretary will disavow any knowledge of your actions. This tape will self-destruct in five seconds. Good luck, Jim.”
Well, just suddenly remember those classic Mission Impossible warning on every end of its mission tape. Now I’m starting to pick my agents. Let’s open my shelves and see what I can find. A Gainclone only need very small amount of components, around 10 pcs each channel. I think I still have some in my drawers.
Some capacitors on my drawer. Umm… I’ve collected these for quite long time.
Tags: Amplifier, Audio, Capacitor, DIY-Audio, gainclone, resistor
Posted in Collectible Stuff, DIY Audio, Personal | Comments (99)