1x 20W tube amp for hifi or instrument. It works good and sounds very powerful. It is not serviced, but power output is good. 2x 6L6 tubes PP. All tested, only the mic knob is stuck. The Phono input (not RIAA) is usable for audio or guitar. All in or outputs are standard 4mm banana. Number of tubes 6 Valves/Tubes EF86 ECC83 EF86 6L6GC 6L6GC GZ34 Main principle Audio Amplification Wave bands -without Power type and voltage Alternating current supply (AC) / 110; 220 volts Loudspeaker - This model requires external speaker(s). Power out 20W (unknown quality) material Metal case Model: Amplificateur ST20 120 - Bouyer, Paul Harmonic Radio; shape Table model, with any shape - general. Dimensions (WHD) 425 x 140 x 185 mm / 16.7 x 5.5 x 7.3 inches Notes Ampli PU / Micro, basic tonality correction (breveté). Similar to the ST10 but with 20 W output. Inputs: 2 x microphones (10 mV, 220 kΩ) 1 x microphone (8 mV, 220 kΩ) 1 x pickup (150 mV, 500 kΩ) Outputs: 4, 8, 15, 250, and 500 Ω, and 100 V line Output power: 20 watts in push-pull configuration with automatic grid bias, operating point approximately equivalent to Class AB operation. Bias current adjustment via multi-stage power switch with skull indicator. ... Net weight (2.2 lb = 1 kg) 7.3kg / 16lb 1.3oz (16,079lb) Price in first year of sale 422.00 FRF Pictures are description. Carefully shipped