HAMMOND 125ESE Transformer WIRING

mrhotmark · 16th November 2005, 02:19 PM

I am updating an older Fender Champ amp. For the Hammond 125ese output transformer, it's obvious that on the secondary the black wire is ground and the other wires select the primary impedance as seen by the power tube. I plan on using negative feedback from the speaker to the cathode on one of the 12AX7's. The 125ESE primary wires are blue and brown. The question is which wire goes to B+ and which wire goes to the ouput tube plate for proper wiring?

Gilbert · 16th November 2005, 06:19 PM

According to the Hammond web site, brown to B+, blue to tube

deadratsalad · 24th March 2010, 09:30 PM

Quote:

Originally Posted by Gilbert

According to the Hammond web site, brown to B+, blue to tube

I know this post is very old but the info you supplied is very new to me and very needed. I am about to install a Hammond 125ese in my Blackheart LG and needed this invaluable info,thanks.

16th November 2005, 02:19 PM	#1
mrhotmark diyAudio Member Join Date: Nov 2005	HAMMOND 125ESE Transformer WIRING I am updating an older Fender Champ amp. For the Hammond 125ese output transformer, it's obvious that on the secondary the black wire is ground and the other wires select the primary impedance as seen by the power tube. I plan on using negative feedback from the speaker to the cathode on one of the 12AX7's. The 125ESE primary wires are blue and brown. The question is which wire goes to B+ and which wire goes to the ouput tube plate for proper wiring?

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16th November 2005, 06:19 PM	#2
Gilbert diyAudio Member Join Date: Jan 2005 Location: Fort Collins, CO	According to the Hammond web site, brown to B+, blue to tube

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