Slagle AVC autoformer dual mono volume modules.

http://www.enjoythemusic.com/diy/0611/slagle_autoformer_volume_control_modules.htm

Can also be used as unpowered headphone amp.

Excellent quality.

As this was a personal project am selling at cost price.

David Slagle charged me £295 including shipping for the AVCs.
Hammond ABS enclosure £26 (£10 shipping).
4 x ETI high quality sockets £10 each – £40 + £8 shipping = £48
Duelund hook-up wire and silver wire – £20.

Total customs and handling charges £33.40
No charge for knobs and labour.
Total = £422.40