This is a simple DIY job that includes professionally made circuit boards. I put it together at a time when I was sampling many types of preamps and building them quickly, so the case is not very fancy - just a Hammond aluminum chassis.
Parts:
- 2 Glass Audio made octal Aikido circuit boards with K40y PIO and Auricap output capacitors (selectable)
- Welborne Labs PS8B dual power supply (not PS8 single) with regulated filament supply http://www.welbornelabs.com/ps8.htm
- 2 Hammond 269EX power transformers
- PEC 2W hot molded carbon volume pots
- A quad of new production Tung-Sol 6SN7 tubes PLUS several pairs of old U.S. made good-to-NOS testing 6SN7's for your tube rolling pleasure.
This preamp does sound quite good.
One thing: when I built it, I was short on 220uF caps for the power supply, so the first cap is a Xicon 47uF that's just patched in. You should put 220uF caps in for better performance.
The heater supply is also elevated with respect to cathode.
This item, though in good shape, is being sold as a DIY job. Please only buy it if you are familiar with working with tube electronics. I may not have time to coach you through any modifications you may want to make to it. I'm moving soon - which is why I'm selling my stuff off.
Please feel free to ask questions. PayPal is preferred. Original cost of parts estimated to be $450+
Adam
