See model 122 page for specifications.
The 122RV is exactly the same as a 122 except it was built with a Leslie reverb system installed.
The reverb amp in located in the upper compartment, and the delay line or “tank” is on the inside of the middle compartment back.
Amplifier Type
1 Channel Vacuum Tube
Output Power
40 Watts
Drum
1 - 15" Speaker
Horn
1 - Compression Driver
Speeds
2 Speed (Chorale/Tremolo)
Interface
6 Pin Balanced