RH84 Ver.2 PSU - Where and what to buy?

[eldarvanyar]

Hi All,
I want to build a RH84 V2 valve amp and have been gathering the parts for the project and now have most of them. I don’t know if you are familiar with the amp the web page is here:





http://rh-amps.blogspot.com/2013/02/...-2_26.html?m=1

I have bought Lundahl ll1663 output transformers for the project
https://www.audiohobby.eu/en/lundahl...1663-50ma.html

I have also bought a Audionote Choke 160 10H 120ma

https://www.hificollective.co.uk/com...choke-160.html

I have struggled to find a suitable power transformer although I know the Hammond RX372 BX or DX would be suitable according to the designer.

From Alec: The RH84 requires 100mA DC B+ and you should look into HV secondaries of more than 100mA. For instance, the 372BX or 372DX are what you need for an RH84 - with universal primary that can cover US voltages as well as all combinations of European voltages (220-230-240V).

Hammond 372 DX
Power Rating (VA) 127
Primary VAC
Universal - 100, 110, 120, 200, 220,230, 240 VAC 50/60 Hz
A.C. High Voltage Secondary RMS 600V C.T. @ 144ma.
Bias Tap on High Voltage Secondary w/ C.T. Grounded (VAC) 50
Filament #1 (VAC)
5V C.T. @ 3A
Filament #2 (VAC)
6.3V C.T. @ 4A

I think the Encore XPWR066-240v would also be suitable.

I have bought the necessary valves 2 x EL84 and 12AT7 Driver, including the rectifier a 5R4WGA CHATHAM NOS VALVE

Can anyone point me in the right direction to source an open frame type psu as I would like to build the amp in an enclosed box rather than have everything on show. The Hammond and Edcores are Bell type transformers for sitting on top of the amp.

I have sent two emails to majestic transformers and Primary Windings who I have ordered from before but have not had any replies.

I would like to be able to complete this build this year and would appreciate any thoughts or help in the right direction.