Have been working on a DC PSU for this radio for a few months on and off with assistance from someone who gave me a lot of help (hopefully this version won't disappoint) , a few attempts made, this is un-certified but seems pretty stable, power resistors not too hot. Possibly over engineered.
Mechanical cooling provided by a PC fan via pot to control speed. Supplied from a stripped down 12v charger.
Grill covers - Stainless Steel Woven Wire Mesh Rodent Proof Metal Mesh Sheet 1.94mm Hole - spray painted.
DT-200VA 220V - 110V Step Up & Step Down Voltage Transformer Converter UK to US 110V & 220V outlets, parts stripped and re-used.
R1, R2, R7 - 5w carbon.
R3, R4, R5 - 50w power.
R6 - cement.
D1, D2 - 1000v 10A rectifier.
C1, C2 - 100uF electrolytic.
C3 - 220uF electrolytic.
Insulation inside the wooden box provided by 2 mm Phenolic resin paper based Sheet.
DC circuit is great on Multisim, not too bad off-load on the bench.
Still working on the radio set, it has had a lot of tinkering and additional parts added in it's life, trying to remove and follow the circuit diagram and put my own spin on bypassing the canned condensers, which I think the previous owner was trying to do
Replacement valves obtained.
Fingers crossed, rubber mat in place, goggles on..
