Leak stereo 30 brochure

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Stereo 3.131113

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Stereo Reproduction

Over the past ten years stereo sound reproduction
has become as much a part of our lives as the
motor car and jet travel. In view of the astonishing
sense of realism and the lack of listening fatigue it is
not surprising that stereo should have attained

such great popularity.

What may surprise many people is how long stereo
has been known to communications engineers.

H. J. Leak carried out his first stereo microphone
transmission (with D. W. Turpin) in 1931 and
subsequent experiments proved the feasibility of
stereo sound as we know it today.

What Is relatively new about stereo is its availability
to the general public by high-quality records and
the increasing use of stereo radio.

Old or new. H. J. Leak & Company has always been
acknowledged as the leader in the field. And our
products prove it.

Stereo 30 plus
When the Stereo 30 was introduced at the 1964
Audio Fair it established a record as the first
integrated transistor amplifier to be manufactured
in this country.
Five years later over 40.000 Stereo 30 amplifiers have
been built and it has established records, for
popularity. reliability. and outstanding
performance.
The new Stereo 30 Plus combines the long proven
circuitry of the Stereo 30 with a new range of
silicon transistors and facilities up-dated to meet
today's needs :-
The use of two turntables and pickups, selection
between the two being made by the input
switch on the front panel.
The use of stereo headphones for personal
listening as an alternative to loudspeakers.
This. backed by the famous LEAK craftsmanship and
reliability. makes the Stereo 30 Plus the most
technically advanced 15-watt amplifier available.
And it sounds it.
Ease of Installation
The compactness of the Stereo 30 Plus and its
availability in either chassis form or in a teak case
solve any problems about location. The chassis
model can be fitted into a panel of any thickness and
the special design makes this easier than with any
other amplifier. The case model can be used
freestanding on a shelf. on a table. or in a bookcase.
We have taken a great deal of care over the electrical
connections to the Stereo 30 Plus. All LEAK Tuners.
and Loudspeakers. and most auxiliary equipment
(pickups. etc.) are now supplied with standard
cables and plugs which are simply plu ged into the
Stereo 30 Plus. In this way it is possib e to set up a
complete stereo system and have music within
ten minutes.
Funcflon
The function of an ordinary mono amplifier is to
accept the tiny electrical signals from the input
device (pickup. tape amplifier. tuner or
microphone) and to build them up to a magnitude
capable of operating a loudspeaker system. and to
achieve this with negligible distortions.
The LEAK Stereo 30 Plus amplifier is simply two
identical mono amplifiers electronically separate.
but physically combined. This amplifier reproduces
stereophonically and monophonically from records.
tape, radio and microphone. using any pickup, any
tape amplifier, any tuner and any microphone
available in the world. This comprehensiveness
gives the important advantage of compatibility with
the finest pickups and microphones available in the
world: this is not the case with cheaper low-gain
amplifiers.
The Stereo 30 Plus functions electronically to the
highest standards obtainable by present techniques
- to the performance standards demanded by
communications engineers for broadcasting and
recording. There is nothing we can add to the
circuitry or the price to improve the fidelity of
reproduction obtainable from the Stereo 30 Plus.