Rikstone C9 is based on a classic Hagstrom 39 amp which was produced in early 60's by a Swedish company with the same name. I have modified the amp little bit  in order to improve its usability. The speaker cabinet is separated from the chassis with a plywood board.

Technical data:

Inputs: 2 inputs (High and Low sensitive)
Outputs: 8 Ohm
Controls: VOL, TONE, TREMOLO, Tremolo foot pedal
Tubes: 1 x 12AX7, 2 x ECL82, 1 x EZ81
PT: TBT NTR 110
OT: EDCOR GXPP15-8-8K
Rectifier: EZ81
Speaker Eminence Alnico 10"
Schematic: Hagstrom 39