Here is a quick demo of my 1967 Supro Valco Corsica S6622 112 Tube Combo.
Has the original Jensen C12-R Speaker. Tubes are 5Y3GT, 6V6GT, and 4x 12ax7. This amp is on the bright side right now... Usually I crank the tone pot on a Valco to 10, but this one gets a little harsh above 6. I suspect the power tube is a little on the bright side. A swap would likely warm it up a bit.