VOX Pacemaker tube amp 1965

And the odd one out is my Vox Pacemaker with tubes.
The story behind the Vox Pacemaker "made in USA":

It is therefore not a British Vox, but a Vox Pacemaker made in California by Thomas Organ. After signing a distribution agreement with Vox manufacturer JMI in 1964, Thomas Organ found that, following The Beatles' huge success, it was unable to meet the demand for British JMI-made Vox amplifiers. To speed up availability, in the early 65s JMI started shipping only parts (chassis and speakers instead of full amplifiers) to Thomas Organ. Even then, however, the California company was unable to meet the demand and began purchasing parts to assemble its own versions.

This was followed by a hostile takeover bid for Vox JMI by the American Thomas Organ. Subsequently, JMI founder Tom Jennings sold his controlling stake in the company to meet the need for expansion. When Thomas Organ asked for the rights to use the Vox name in North America, Jennings was unable to stop the deal despite his vehement objections. The result was a series of amplifiers such as this 1965 Pacemaker.

The pacemaker has gone through several variants from its introduction in 1965 to 1971. The tube version was only produced in '65 until early '66. The first version was equipped with 10 inch Celestion speakers, initially sold to Thomas Organ by JMI, who bought them from Celestion. As soon as the Californians found out that it would be cheaper to arrange this yourself, the amplifier was equipped with a Bulldog 10-inch speaker. It was produced by Oxford in Chicago, which also supplied Fender and several other manufacturers.

It's a smaller amp than the UK-built AC15. A 1 × 10 inch speaker combo. The amplifier has three inputs, but only one channel, powered by half an ECC83 (12AX7). The Pacemaker benefits from a circuit that is in fact no different from the AC30's Top Boost circuit, with Treble and Bass controls, powered by a second ECC83. Another ECC83 powers the tremolo circuit. The whole sounds really good, even if it is not AC15. Perhaps the Pacemaker would sound even better by connecting an (external) 12-inch speaker. A recognizable clear Vox tone and crunch.

So don't confuse this version with the transistor version that continued the Pacemaker line in 1966.