[jaycobie]

I have a couple of questions about a NOS spare power supply I just bought. It's originally intended for an RCA AR-88 receiver, but I intend on using it for a tube amplifier build.

It's part number 901432-501, so it fits the listing for an AR-88D, according to a manual for those receivers.
It's also has two orange stamps:
SC4881A
£234 (not sure about the pound symbol)

So my questions:
1) The heater and rectifier windings have current ratings on them but the HT winding does not. Does anyone know a rough estimated current handling on the HT winding for these supplies? Or perhaps someone here has measured the mA draw before the filter chokes on a functioning AR-88?

I tried searching but didn't see a proper number.

2) Is it possible to date this transformer? I assume it's from around 1944-1950 but I was wondering if anyone is able to tell me a more exact date.

Thanks!