Leak
Leak is the main British maker in the archive. Harold Joseph Leak founded the company in London in 1934, and in 1945 its Type 15 "Point One" amplifier, 15 watts at 0.1% distortion, set a standard that British hi-fi measured itself against for years. The TL/12 and its successors, including the TL/25-Plus and Stereo 60, kept the formula going into the 1960s.
Buyers outside the UK should remember that Leak amplifiers were built for British mains and often for British valve types, though later models such as the Stereo 50 used the EL34, which is easy to find. Check the voltage selector and the condition of the output transformers, which are the expensive parts.
See the original Leak company page and the Leak maker page for the history up to the 1969 sale to the Rank Organisation.
