VOX SOUND EQUIPMENT LIMITED (VSEL) AC50s
Large box amps, solid state rectified - 1968-1970
"Vox Sound Equipment Limited" sprang from the ruin of Jennings Musical Instruments in the summer of 1968, taking over a good part of its predecessor's stock - some of it evidently produced in 1967. It seems likely that these were sold still with JMI serial number plates on the back panel.
The new serial plates (see below) were doubtless reserved for newly-made AC50s, which have "A VOX Product" on their control panels, rather than for older stock.
Surprisingly few AC50s seem to have had VSEL plates though - which is probably to say that relatively few were made. The company certainly struggled financially in the face of stiff competition from Marshall, Laney, Orange, Hiwatt, and growing numbers of overseas manufacturers.
For material on Vox Sound Equipment Limited, see this page, with further links there.
Production remained in the former JMI/Burndept factory at Erith - the "West Street" works - throughout the VSEL period.
A note from "Beat Instrumental" magazine, July 1969. Reg Clark was general sales manager of Vox Sound Equipment Limited. The "AC50 Amplifier Section" was often issued with the new-style Foundation Bass cabs.
Register of surviving amps
VSEL serial number 1045 - currently in the USA
VSEL serial number 1052 - currently in Ireland
Gigged for some years in Dublin, then to the RTE Studios in the city, from which it was acquired by the present owner. It had what are likely to have been its original Brimar and Mullard valves. Used on the road again in the early 2010s. Following a recording session in 2011, a transformer had to be replaced (with a unit from a Marshall). In full working order. Thanks to Gerard for pictures and info.
VSEL serial number 105x - currently in Scandinavia
Said to be valve rectified - perhaps an old chassis being used up?
VSEL serial number 1061 - currently in Sweden
Voltage selector removed (a condition of Swedish law). A nice amp, used on the album "Jetbone" - available on Spotify. Thanks to Viktor for the pictures.