Basic operation has been checked. Bonnet is slightly warped; one screw does not fasten due to capacitor upgrade. The amp has undergone partial refurbishment including capacitor and diode replacements. Specification: 6CW5 push-pull circuit with 6AN8 driver tube. Upgraded with NEC and Ei (Yugoslavian) tubes. 5W+5W (8?) / B+ at 240V. Transformers: SANSUI PV-145 (power) and SW-15-4 (output). Includes Okaya, Panasonic, Nichicon capacitors for enhanced performance. A unique and modified vintage unit-perfect for tube amp enthusiasts! If that, please let us know within 3 days you got the item.