Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders.

---

[ Follow Ups ] [ Post Followup ] Thread: [ Display  All  Email ] [ Tube DIY Asylum ]

---

[ Alert Moderator ]

---

Help: Hammond 272DX 125 Tap not working, but 115 is working.

Posted by banpuku (A) on September 23, 2016 at 13:58:42

The 115VAC tap on the Hammond 272DX power transformer is working just fine. The problem is that I am getting about 122VAC from my wall and I would therefore, like to use the 125VAC tap on the Hammond.

Per the 272HDX schematic, the white wire goes to neutral and the user has a choice for hot between black (125V) and grey (115V). The grey 115V works fine, albiet too much voltage for my needs. So, I switched the grey and black wires. The black wire does not work. No sound out of the amp. tubes don't heat up.

Thoughts?

UPDATE: I TOOK APART THE TRANSFORMER AND REPLACED THE 115, 125 AND NEUTRAL WIRES. THIS CURED THE ISSUE. IT IS WORKING WELL.

I MUST ADD, I DISCOVERED HOW CHEAP THESE TRANSFORMER ARE MADE. THEY DO A VERY POOR JOB SOLDERING THE WIRE THEY USE IS BOTTOM OF THE BARREL. I WAS DISAPPOINTED TO SAY THE LEAST.

•   (Open in New Window)

Edits: 09/24/16

This post is made possible by the generous support of people like you and our sponsors:

Signature Sound

[ Signature Sound Lounge ]

---

[ Top of Page ] [ Contact Us ] [ Support/Wish List ] [ Copyright © 2024, Audio Asylum, all rights reserved ]

---

[ General ] [ Speakers ] [ Tubes ] [ Vinyl ] [ Digital ] [ Hi-Rez ] [ Video Asylum ] [ Cables ] [ Tweaks/DIY ] [ Music ] [ Films ]

---