Fair Radio has on sale a nice transformer for making 12V 6A power supplies or with added resistor for 7.5V filament power for which transformers are hard to find. Splitting the 16.8V winding and a small resistor in primary.
16.8VCT 6 Amp Secondary.
15.5VCT 250ma Secondary.
115VAC 60Hz Primary. 2.9×3.3×4.1 Open Frame Epoxy Coated 6 lbs sh.
https://fairradio.com/product/32-16-8v-6a/$9.95
