UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - AZ31 as rectifier for a stereo Mullard 3-3?

qualityten · 12th May 2021, 1:42 pm

Thanks for this Trevor. Thinking this through for myself, I have gone ahead and used the 6.3V-0 winding for the EZ81 heater and the 3.15-3.15 winding for the heaters of other valves. I've not yet finished wiring it up, so I thought I'd wait till this was done before reporting on my results.

If I have one point where all the transformer grounds and the power socket earth are grounded to the chassis, should I still have a ground point near the inputs? Or should I ground everything, except the IEC socket earth, near one input. Reading your comment, I think the latter!

12th May 2021, 1:42 pm	#21
qualityten Octode Join Date: Feb 2009 Location: Wallasey, UK. Posts: 1,314	Re: AZ31 as rectifier for a stereo Mullard 3-3? Thanks for this Trevor. Thinking this through for myself, I have gone ahead and used the 6.3V-0 winding for the EZ81 heater and the 3.15-3.15 winding for the heaters of other valves. I've not yet finished wiring it up, so I thought I'd wait till this was done before reporting on my results. If I have one point where all the transformer grounds and the power socket earth are grounded to the chassis, should I still have a ground point near the inputs? Or should I ground everything, except the IEC socket earth, near one input. Reading your comment, I think the latter!