Donald,
Is your radio a 3-band, tall, wide, not very deep table radio? I show a "Regentone 99" as a 5-tube with ECH35, 6K7G (EF39) at 465 KC, EBC33, EL33, and 6X5GT. Also a similar "99A121" with a "787" (probably 7S7), 7B7, 7C6, 7C5, and 7Y4.
Eddie
http://www.vintage-radio.net/forum/index.php
You'll have to sign up and wait a bit to be approved. There is also a link to a schematic service on that site - but it's not free and will cost you a few pounds ($)...