I have bought the following preamp:
DIY KIT Ref Marantz 7C Tube Pre Amplifier (2 Channels)
1. Components design value with reference to Walt Jung of American Audio Amateur Magazine.
2. Shuguang 12AX7B x3.
3. WIMA MKP10 series 2.2uF/100V as output coupling capacitor.
4. BHC filtering, WIMA capacitor.
5. Dale resistors.
6. PCB thickness 2.5mm, 2oz copper wires.
10 sets for promotion only!
US$ 135.0 :smash:
Top grade components but cheaper than a toy!
Excellent comments was made in <Nuts & Volts Magazine> on June 2008.