Tube Line Stage/Preamplifier

This is my 4th tube preamp project, but the first to use 12AU7 tubes and certainly not the last. Some of the parts used are from former projects that I made but don't use anymore. I hate wasting parts so why keep them sleeping? Build something new out of them! Of course, trafo and chokes are brand new. It uses a modified solid state power supply section and a DC regulated supply with slow turn-on for the heaters.

Here are some pics...

 

Almost finished...

 

The inside of the preamp...

 

 

 

Tubes installed, ready for testing!

 

I used my Leach Amp for testing this baby...

 

 

 

All in all, the sound is great, very satisfying. Some of my friends who heard this preamp  are very impressed!

Update: 03 May 2004

Some pics of my preamp... in action!

 

 

 

Ohlala! Tube closeup pic...

 

The preamp playing music with a friend's ST70 Tube Amp.

 

/DJ7

 

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