Wireless World, July 1953: TL/12 amplifier and Radio Feeder Type VS
(Variable Selectivity) described at the APAE and BSRA 1953 Exhibitions.
"Audio" (USA) January 1960 Page42, Review of "Leak Stereo
60".
Hi Fi World, August & Sept 1994 "Restoring the Leak TL/12"
by Graham Tricker.
Hi Fi World, July 1992. A description of a stereo decoder (Paravicini)
for the Leak Troughline FM Tuner.
la nouvelle REVUE DU SON, No 139 Juillet/Aout 1996: "Les amplificateurs
Leak"
Wireless World, Sept 1950. "Pickup Design" - Letter by H.J.Leak
to the Editor of Wireless World.
"Radiotronics" (AWA Australia) September 1955; "Laboratory
Report on Leak TL/12 Main Amplifiers" by F.Langford-Smith and A.R.Chesterman.
"The Gramophone" May 1955; "Why Electrostatic Loudspeakers",
by H.J.Leak
"Radiotronics" (AWA Australia) September 1955; "Why
Electrostatic Loudspeakers", by H.J.Leak (a re-print of the article
in "The Gramophone".
"High Fidelity Loudspeakers: The Performance of Moving Coil and
Electrostatic Transducers" by H.J.Leak. British Institute of Radio
Engineers, December 1955.
"The Rigidity of Loudspeaker Diaghrams", by D.A. Barlow (later
engaged by Leak to develope the "Sandwich Loudspeaker"), Wireless
World, December 1958.
"Push-Pull Input Circuits: Part 5 - The Cathode Coupled Stage",
by W.T.Cocking, Wireless World, May 1948. (Not a direct reference to Leak,
but an excellent explaination and analysis of the phase splitter circuit
used in Leak valve amps.)
First "Point One" Advertisment by Leak, Journal of the British
Institute of Radio Engineers, September 1945.
"The Beginnings of Hi Fi - A History of H.J. Leak & Co.",
HiFi World, October 1996.
Troughline Tuner - letter by Ted Ashley (ex Leak Chief Engineer), HiFi
World, June 1996.
"Kaleidoscop", (notes on discovering the Leak history), HiFi
World, October 1996.
"The TL/10 Power Amplifier", Richard Kelly, HiFi World, June
1996.
"Vintage Virtues", Hayden Boardman, (discussion of the Leak
Sandwich), HiFi World, July 1997.
"Gateway to the Ether", N.Keywood and K.Bharadia, (discussion
and supply of a stereo decoder for the Troughline tuner), HiFi World, Sept
1997.
