The bigger one is on an amorphous core and weighs in at 14 pounds will find service in a GM-70 amp. 18Hy @ 250ma for a 1000V B+ The smaller pair are on 49% nickel and measure in at 100hy @ 20ma.
YL AUDIO - I wish there was more YL Audio around. What a cool company? http://www.itishifi.com