Raymer 801-35A Operating Instructions

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RAYMER
OPERATING INSTRUCTIONS
MODEL 801-35A AMPLIFIER
WARNING — TO PREVENT FIRE OR SHOCK HAZARD, DO NOT EXPOSE THIS AMPLIFIER TO RAIN OR MOISTURE
DESCRIPTION:
The Raymer Model 801-35A is a multipurpose
monaural 35 Watt RMS, all silicon solid state amplifier. It
is designed for dependable continuous operation in
background music, public address, paging and sound
reinforcement sytems. The amplifier has provisions for
mixing two inputs: one microphone and one music. A
selector switch is provided to match the microphone
input for either high or low impedance. The music input
is high impedance and will match a ceramic or crystal
phono cartridge, a tuner or other auxiliary equipment.
The amplifier has a variable tone control which affects
both inputs.
The amplifier also features an electronic Music Mute
(Precedence) circuit in place of a relay to quickly fade out
the music while paging; after the page, the music is
smoothly restored.
The speaker outputs of the amplifier are for 4 or 8
ohms; or 25 or 70 volt, balanced or unbalanced lines. A
preamp input/output jack is provided for connecting two
or more amplifiers or receivers together so that they may
be operated simultaneously to deliver a total power in
multiples of 35 watts to a single speaker line. This feature
applies only to units with "-35A" model identification.
The amplifier is protected by a circuit breaker which
prevents possible damage that might be caused by acci¬
dental shorts or overloads.
UNPACKING
The unit is to be removed carefully from the carton
and inspected for any possible damage in transit. If
there is any evidence of any damage which might have
occurred in shipment, immediately notify your supplier,
or the transportation company which delivered it.
Claims for damage sustained in transit must be made
upon the carrier. Save all packing material for in¬
spection by the claim agent who will furnish you with
the proper forms and will also give you the necessary
instructions for filing a claim.
INSTALLATION
The Raymer Model 801-35A has ample vents for normal
ventilation; however it should be placed so as to permit
free air flow around the unit. DO NOT PLACE ANY
OBJECT ON TOP OF THE COVER OR IN ANY WAY
BLOCK THE AIR FLOW OF THE VENTS. DO NOT
STORE OR OPERATE THE AMPLIFIER IN AREAS
WHERE THE TEMPERATURE EXCEEDS 140 degrees F.
The amplifier may be mounted in a 5%" vertical space
in a rack, using the Raymer Model RPK-2 rack mounting
kit.
This unit has an AC line cord with a 3 prong plug.
The line cord should be plugged into a 3 wire grounded
105 to 120 volt 60Hz AC outlet. This will also ground
the amplifier
The AC receptacle on the rear panel is a 3 wire
grounded outlet which can supply power to accessory
or auxiliary equipment. Any auxiliary equipment con¬
nected to this AC receptacle is controlled by the
POWER on-off switch so that turning off the power on
the unit turns off all equipment.
CONNECTIONS
All connections are made on the rear panel of the
unit.
INPUT CONNECTIONS
All patch cords and input leads other than Music
Mute must be shielded cables. The Music Mute leads
do not have to be shielded. When output leads are run
near an unshielded microphone input plug, or when run
together with the microphone precedence leads, a
supersonic oscillation may occur. When this does
occur, it will appear as a distortion in the amplifier
output, and oftentimes will cause the circuit breaker to
"trip."
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