Vox AC80/100 no. 178
Produced by Westrex for Jennings in the autumn of 1964. The amp was in Japan during the 1990s and 2000s. It had probably lost its original mains and output transformers and been repaired before that time - most probably in the late 1970s.
Radiospares components were used to replace spent originals. The 32uf 450v capacitor in the preamp has the code C7631, which is likely to signify the 31st week of 1976. The 16uf cap has the code 7204 = 4th week of 1972. During the repair the plate resistors were removed and not replaced - they have since been reinstated. A Cannon LNE-11 now stands in place of the non-original XLR mains socket.
For related amps, see the main this page. The pictures below were taken in 2013. Click on the thumbnails for larger versions.