AOS Exclusive Review of Eco-Fan Sound Pre-Amp and Power Amp

While not a huge priority, this is progressing, with belt groove being made, and lip removed. Also, the parallel hole in the Collaro platter tapered for the Garrard bearing. This diecast platter is much heavier than the Garrard 310 one. I have a heavy lead intermediate fly-wheel for between belt from engine and belt to platter. Should be very smooth, and could be driven from any sort of motor.
I have my eye on lovely British spirit boiler and Aussie donkey engine kit. Should be great looking and rival some of the best turntables for performance. A bit of a hoot.

Sounds amazing - look forward to some pics!

THE problem that has me thinking, is that on all the engines the pulley is vertical, whereas one needs a horizontal one for a turntable.

Might be worth looking out for a steam engine kit that has a governor. You will get much better speed control then.

Yes, too right! I have thought of that, and have the bits to do just the job on whatever engine I come up with. Same as the one on a wind-up gramophone, but on a smaller scale.

The friends did get here, and we had a really enjoyable afternoon with music DVD they knew, but mostly talking. We took each others photos, although I wish I'd washed my hair! Here is photo I took.
They were impressed with the balanced single ended sound and he's keen to get the 100W version. Off the top of my head I probably quoted a vastly under price. But heck, they'll be in Saudi Arabia!

Lost track of the photo there, but with luck, here it is. Friends from Ireland. Didn't think about the whiskey at the time come to think of it!

Murray that guy could be my Dad's brother :eek: He looks very like my Dad.


Regards D S D L

The BSEA amp has evolved somewhat.
Changing the driver from 6N7 to 6SN7 has improved the rise time and lowered the noise.
This version is the direct coupled amp using two of type 6A3 valves per channel.

I have the 6A3 courtesy of Francis,driving AER MD2's in an active two way Oris horn config using a Trinnov ST2 for room optimisation and its digital 2way crossover feature.
The 15" bass is driven by a MC2 MC450 at the moment but Francis is sending over his other 6A3 so I can have a play with a fully active setup using the 6A3's :)

Got my BD Design Ref 2010 bass cabs almost finished,some pics on the wam in the DIY forum looking forward to getting it all together