H.J. Leak & Co. · Leak valve era

Stereo 50

Launched in 1958 alongside the Stereo 20 - the two chassis that started Leak's stereo generation.

Catalogue code: Stereo 50
Years: 1958
Type: power amplifier (stereo)
Valves & speakers: 25 W per channel stereo valve amplifier with EL34 output stage
Lifecycle: retired
Confidence: Medium

Specifications

Watts: 25
Channels: 2
Technology: tube
Tubes: 4x EL34

Safety

UK valve chassis: mains-derived HT rails stay charged after switch-off; original Hunts/TCC/Erie capacitors and the mains transformer are the two failure points. Value is set by untouched transformers and original cosmetics (silver/black livery), not by the valves fitted.

01 / Witnesses

What applies here

Marks that can be entered for this maker: Model / catalogue number, Model / catalogue number, British capacitor code (Hunts, Mullard), Japanese capacitor code (Nichicon, Chemi-Con, ELNA), EIA component code, Chassis / platter stamp.

02 / Bounds

The model year is a floor

Nothing predates 1958; components only push the date later.

03 / Value

What moves the price

Sold-price aggregates are not collected yet, so the archive gives no figure — condition, originality of the transformers and a documented recap move this model more than any list price.