- Posted by mqracing (M) on May 21, 2009 at 12:23:30
In Reply to: RE: TM 220C posted by twystd on May 21, 2009 at 11:22:30
Primary is 4,000 ohms CT:blue goes to plate of tube #1
red is B+ (or AC ground)
brown goes to plate of tube #2
Secondary:#5=green
#6=yellow
#7=brown#8=red
#9=blue
#10=blackfor 16 ohms strap 7-8 and connect speaker to 5&10
for 8 ohms strap 7-8 and connect speaker to 6&9
for 4 ohms strap 5-8 & 7-10 and connect speaker to 5&10
for 2 ohms strap 6-8 & 7-9 and connect speaker to 6&9
(leads 9 and 10 are the preferred secondary ac ground)
Builder of MagneQuest™ & Peerless™ transformers since 1989
Edits: 05/21/09
