This combo amp is Hunter Amplifiers' "Vibro-Comrade". It is loosely based on the Fender Vibro-Champ Amp AB764. It is completely hand-built and point-to-point hand-wired. It's pretty true to the design as far the circuit goes. It deviates from the original circuit by its use of Loctal tubes, which are the electrical equivalents of the tubes in Leo's design but in a special rugedized design originally made for the U.S. military (they are still readily available), and the 6Н2П (6N2P) Soviet-military surplus duo-triode around which the tremolo is built. The tremolo is cool and can get amazingly "choppy". As far as the controls go there are volume, treble, and bass controls for the tone and speed and intensity for the tremolo. There are two inputs of varying impedance and a jack on the back for a footswitch to switch the tremolo on and off. It is fitted with a new Celestion Super-8 speaker. The cabinet is doweled 3/4" New Zealand pine with a comfortable stitched handle, and four little rubber feet. It measures 11.5" x 13.5" x 7.25" and weighs in at about 17 lbs. It's "only" 5-watts, but it's plenty loud enough for most small venues and perfect for practice or recording. It has a complement of 4 tubes: a 7F7 duo-triode preamp tube, a 7C5 power tube (equivalent to a 6V6), a 6Н2П (6N2P) tube for the tremolo, and an 7Y4 rectifier tube. Finally, it is wired with an IEC three-wire grounded power input plug so you don't have to be afraid you'll electrocute yourself every time you touch your strings. No transistors or semiconductors were used ensuring a completely authentic vintage tube-only sound. Hunter Amplifiers are 100% handmade in the US!