Amp Head
The head of the first AC50 MKI model originally had 2 inputs. 1 for a warmer "Normal" channel and another for a brighter "Brilliant" channel that sounds more comparable to a Vox AC30. The later MKII and MKIII models have 4 channels to meet the varied input needs of musicians. While the amp's output provided larger sound than the Vox AC30, the tube design called for two EL34 output tubes to achieve the power needed for tonal clarity. The preamp tubes were consistently one ECC82 (12AU7) tube and three ECC83 (12AX7) tubes. Early designs came outfitted with a GZ34 rectifier tube, while latter MKIII models housed a more predictable and stable diode rectifier to support the power supply.
This is a Video Showing that the Amp worked before shipping to Boston Thru UPS Shipper.
Produced with CyberLink PowerDirector 19