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|7th January 2008, 09:52 AM||#1|
Join Date: Nov 2007
Help with wiring a Hammond Power Transformer
Hi (newbie alert. did search),
I am trying to put togeter an Aikido headphone amp, and I am having a bit of trouble trying to wire up a Hammond 270FX transformer with a 5U4G rectifer tube.
All the power transformers that I've used before (272FX) had center tap on the 5V filament wires. I always took the B+ volatage out of that line (that is how I was taught). Like this:
Hammond / 5U4G Tube
Red wire (300v)- Pin 4
Red wire (300v)- Pin 6
Yellow wire (5v)- Pin 2
Yellow wire (5v)- Pin 8
Yellow/black wire (CT of 5V) - B+
But the 270FX that I just bought does not have a center tap for the 5V filament wires. Where do I take the B+ from?
Do I wire like this?
Red - Pin 4
Red - Pin 6
Yel - Pin 2
Yel - Pin 8
And take B+ from EITHER Pin 2 or Pin 8? Or do I take if from BOTH Pin 2 and 8?
|7th January 2008, 01:07 PM||#4|
Join Date: Jul 2005
Location: West Virginia panhandle
Use pin 8. That way you can plug in a 5AR4 if you ever want to.
Too much power is almost enough! Turn it up till it explodes - then back up just a little.
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