312B-4 ... 312B-3 ...
516F-2 ... DL-1 ...
180S-1 ... 302C-3 ...
312B-5 ... PM-2 ...
MP-1 ... 315D-2 ...
136B-2 ... TD-1 ...
399B ... 351E ...
351R ... Bandpass Filters ...
SM-1 ... SM-2/-3 ...
MM-1 ... MM-2 ...
CC-2 ... CC-3 ...
CT-1 ... CP-1 ...
312B-4 SPEAKER CONSOLE
The 312B-4 integrates the 75S-3B, 32S-3, 30S-1 and
accessories into an operating system. The KWM-2 and 30S-1
can also be integrated into an operating system by the 312B-4.
A speaker, RF directional wattmeter with 200 and 2000
watt scales, and a phone patch are included in the console.
Size: 10" W, 7-3/4" H, 12-1/4" D Weight: 8-1/2 lbs.
312B-4 in detail.
The 312B-3 contains a 5" x 7" speaker and connecting cable
and is styled to match the S/Line and KWM-2. Size: 10" W, 7-3/4"
H, 8" D. Weight: 4 lbs.
516F-2 AC POWER SUPPLY
The 516F-2 can be used with the 32S-3 and KWM-2, supplying
all voltages for them; 115 v, 50-60 cps, 400 cps with minor
change. Size: 10" W, 7-3/4" H, 12" D. Weight: 28 lbs.
516F-2 in detail.
DL-1 DUMMY LOAD
The DL-1 is a 100 watt resistive load which can be used for
various tuning functions without putting the transmitter on
the air. The DL-1 can be switched in and out of the circuit
by a front panel switch or can be remotely controlled by the
addition of another switch in the operating position. This
unit reduces tune-up and testing QRM and requires no
connecting or disconnecting of wires prior to operation.
Weight is 2 lbs. 14 oz.
180S-1 ANTENNA TUNER
The 180S-1 is basically a 1 kw pi network for matching
various antenna impedances to a 50 ohm coaxial transmission
line in the range of 3-30 mc. In most cases it is used as an
L network, but when the L network cannot match the desired
antenna, the complete pi circuit is used. The variable
vacuum capacitor employed in the output circuit can be
connected either in series or shunt with the antenna. The
180S-1 is useful for tuning trailing wires on large aircraft.
302C-3 DIRECTIONAL WATTMETER
The 302C-3 is valuable for checking the antenna system. It
measures forward and reflected RF power. Two scales are
provided: 0-200 watts and 0-2000 watts accommodating both
high and low power transmitters. The 302C-3 is contained in
two units: the coupler for connecting into a 50 ohm
transmission line and the meter panel which is styled to
match the S/Line.
312B-5 VFO CONSOLE
Designed for use with the KWM-2 in fixed station operation,
the 312B-5 provides limited separation of receive and
transmit frequencies, phone patching facilities and a
directional wattmeter. It includes a 5" x 7" permanent
magnetic speaker. The PTO control selector can be set as
follows: (1) Receive KWM-2, Transmit 312B-5; (2) Transceive
KWM-2; (3) Transceive 312B-5. Other control functions are
Voice Operated, Receive Only, Transmit Only, Phone Patch On-Off,
and Station Mute. Cables are furnished for connections
to the KWM-2. Size: 10" W, 7-3/4 " H, 12-1/4" D. Weight: 8-1/2
312B-5 in detail.
PM-2 PORTABLE POWER SUPPLY
The PM-2 is a lightweight, limited duty cycle power supply
providing voltages needed for the KWM-2. The PM-2 quickly
slides into place and connects to the rear of the KWM-2,
ready to operate in minutes from either 115 v ac or 220 v ac
at 50-400 cps as a complete portable SSB or CW station. Both
transceiver and power supply can be packed in the
lightweight CC-2 Carrying Case for portability. A small
auxiliary speaker is included in the PM-2 for emergency use.
Size: 14-3/4" W, 7-3/4" H, 4" D. Weight: 13.5 lbs.
MP-1 MOBILE POWER SUPPLY
The MP-1 converts a 12-volt automobile, aircraft or boat
battery to the voltages required for the Collins KWM-1,
KWM-2 or KWM-2A. The MP-1 includes a high voltage supply for
the transmitter PA, bias and a low voltage supply for the
amplifier. Size: 5-3/4" H, 3-3/4 " D, 11" W. Weight: 7-1/2 lbs.
351D-2 MOBILE MOUNT
The 351D-2 provides secure mounting for the KWM-2 in most
automobiles. Cantilever arms fold out of the way when the
KWM-2 is removed. The connector at the right end is the
power plug; the connector at the left end can be used for
control of antennas having band switching circuitry. Cables
20 feet in length are attached to each plug.
136B-2 NOISE BLANKER
The 136B-2 is designed for use with the KWM-2 under mobile
operating conditions. This noise blanker provides effective
reduction of impulse-type noise. It differs from simple
audio clipping circuits or series-type limiters by silencing
ahead of the selective sideband filters. All necessary
hardware and instructions are furnished for simple
installation into the KWM-2. The 136B-2 requires a 40 mc
antenna which can be used as a standard whip for the car
radio. Weight is 1-1/4 lbs.
TD-1 DIPOLE ANTENNA
The TD-1 is designed for use when portability and operation
on different frequencies are primary considerations. The
molded plastic housing holds two steel tapes calibrated in
meters, decimeters and centimeters. These tapes can be
extended to the required length for a given frequency and
locked in place. A permanent frequency-to-meters conversion
chart is attached to the antenna housing. Each end of the
tape is attached to a length of nylon line which acts as an
insulator and a means for securing the antenna to structures
of suitable height. A directional wattmeter should be used
for initial tune-up to insure the proper frequency setting.
399B NOVICE ADAPTER
The 399B-4 is a crystal-controlled oscillator which is used
for frequency control in place of the VFO in the 32S-3
Transmitter. Sockets are provided for four crystals which
are selectable by switch. The 399B-5 is used in place of the
VFO to control the transmit frequency in the KWM-2
Transceiver. The receiver remains PTO tuned. Crystals are
not provided with either adapter.
351E MOUNTING PLATES
The 351E can be used to secure the S/Line or KWM-2
equipments to bench or table in shipboard, airborne or
vehicular installations. The 351E-1 will accommodate either
the 75S-3B,-3C Receiver or the 32S-3 Transmitter; the 351E-2
will mount either the 516F-2 Power Supply or the 312B-4
Station Control; the 351E-3 will mount the 312B-3 Speaker.
The 351E-4 has two snap-in clamps for secure installation of
the KWM-2. The equipment can be easily un-clamped for
removal without the use of tools. The unit is removed by
pulling forward and lifting from the mounting plate.
351R RACK MOUNTING ADAPTERS
The 351R-1 is a matching gray rack panel for mounting the
75S-3B,-3C, 32S-3, KWM-2, 30L-1, 62S-1 or 51S-1. The 351R-2
Rack Adapter is a panel for mounting the S/Line and KWM-2
accessories. The 516F-2, 312B-4 and 312B-5 can be mounted in
the 351R-2. Both adapters are 8-3/4" H and 13-3/16" D behind
the front panel. A supporting shelf holds the unit securely.
Mounting hardware is furnished with each rack mount.
Details on separate page.
Plug-in filters are available for use in the 75S-3B Receiver
to effectively reduce background noise by restricting the
455 kc IF bandwidth to that necessary for communication. The
F455FA series of Mechanical Filters is available in 500 and
800 cps bandwidths for CW, 1500 cps bandwidth for teletype,
2.1 kc for SSB and 3.1, 4.0 or 6.0 kc for AM applications.
The X455KQ-200 Crystal Filter with a 200 cycle bandwidth can
be employed for maximum selectivity in CW.
SM-1 DESK TOP MICROPHONE
Collins SM-1 is a high impedance, nonmetallic dynamic mike
with a frequency response from 100-3500 cycles per second.
It has an output level of -53 db. Finished in brushed satin
chrome, this compact microphone is equipped with a rubber
isolated stand and a five-foot length of Koiled Kord. Like
the SM-2, it can be adjusted for various operating positions.
Collins SM-2/-3 is a slender, gray and chrome desk-top unit
which blends perfectly with Collins' other station equipment.
The SM-2 is omni-directional and provides excellent
transmission for the amateur operator. The frequency
response of the SM-2, 200-3,000 cycles, matches that of the
S/Line and KWM-2. The SM-2 has an output level of -53 db and
is equipped with a five-foot length of Koiled Kord and plug.
It is mounted on a rubber isolated stand. A swivel permits a
60ø swing for position adjustment. The SM-3 is identical to
the SM-2 except for the addition of an integrated PTT button.
MM-1 MOBILE MICROPHONE
The Collins MM-1 is a pressure-operated dynamic microphone
designed to fit your hand comfortably. This mike is
engineered for maximum voice response, and its die-cast case
is finished in brushed satin chrome. With its mounting
button on the front, the MM-1 slips easily into a dashboard
bracket supplied with the mike. When the MM-1 is removed
from the dashboard bracket, the microphone is in position
for instant transmission. A five-foot length of Koiled Kord
with mike plug is supplied with the 22-ounce microphone.
The MM-1 has a frequency response from 200-10,000 cycles per
second and has an output level of -48 db.
The Collins MM-2 includes a high impedance reluctance
microphone and single earphone which can be used in either a
fixed station installation or with a mobile unit. The MM-2
has a frequency response from 100-7,000 cycles per second
and an output level of -50 db. In mobile use, the earpiece
and microphone unit permit the driver to operate his car
with both hands while carrying out radio voice communication.
Although it weighs only 3-1/2 ounces, the Collins MM-2 is
built to withstand the strenuous demands of daily mobile
operation. Its microphone boom has a 360ø adjustment making
it possible to angle the mike to the best pickup position.
The MM-2 Microphone has a magnetic stray field shield to
exclude unwanted noises. For optimum reception of signals,
an adjustable tone arm in the MM-2 pipes sound directly into
the operator's right or left ear, but does not cover the ear
as conventional earphones do. The MM-2 is equipped with both
mike and phone plugs.
CC-2 CARRYING CASE
The CC-2 is designed to hold the components of a portable
Collins SSB or CW station. The KWM-2 plus the PM-2 Power
Supply, the KWM-2 alone, the 30L-1, or the 51S-1 can be
transported in the case. The CC-2 is adapted from the
Samsonite Silhouette and includes a shock-resistant interior
for the equipment. Weight: 9.5 lbs. empty.
CC-3 CARRYING CASE
The CC-3 is a specially built case for accessory components
of a portable Collins SSB or CW station. The CC-3 has the
same styling features as the CC-2. A molded interior allows
the CC-3 to accommodate a 312B-5 (or 312B-4) Station Control
Console, a 516E-2 (or MP-1) Power Supply, a TD-1 Dipole
Antenna, as well as a supply of spare tubes and fuses.
Weight: 10 lbs. empty.
CT-1 CABLE DUCT
Neutral gray, fire-resistant plastic cable ducts add to the
trim appearance of the ham shack and enclose all of the
connecting cables needed for Collins S/Line or KWM-2 single
sideband station. Available in lengths of two feet, the
ducts are equipped with fittings for easy and quick mounting
on the side or top of the operating desk. Duct covers slide
off to allow adding, rearranging or removing cables. 440E-1
The 440E-1 is similar to the cable which is supplied with
the Collins 351D-2 Mobile Mount. This cable can be used to
connect the KWM-2 with the MP-1 or 516E-2 Power Supply when
the mobile mount is not used. 440F-1 CABLE
The 440F-1 is five feet in length and can be used to connect
either the S/Line or the KWM-2 to the 516F-2 Power Supply,
allowing the 30S-1 to be placed a greater distance from
other units of the S/Line and permitting greater flexibility
of fixed station installations.
Details on separate page.
CP-1 CRYSTAL PACKET
The CP-1 contains a set of crystal grippers and all the
crystals for operation of the S/Line receiver, the S/Line
transmitter or the KWM-2,-2A throughout the complete
operating range. The crystals not supplied are those for the
range of 5.0 to 6.6 mc and those which are already provided
with the equipment. The packet is of a waterproof plastic
material containing a pouch for each crystal and one for the
grippers. The complete packet can be fastened into the CC-2
55G-1 LOW FREQUENCY TUNER/SPEAKER
The 55G-1/LF Low-Frequency Tuner is a manually operated tuner
that is an accessory unit for the 51S-1 Receiver. It improves
the sensitivity and input selectivity of the 51S-1 between 200
and 2000 kHz, and greatly reduces cross modulation and spurious
responses caused by strong broadcast station signals. Besides
the tuner, the 55G-1 cabinet also contains a 4-ohm loudspeaker
for the 51S-1. Size: 10" W, 7-3/4" H, 8" D.
55G-1 in detail.
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Copyright © 1996-WA3KEY & 1964-Collins Radio Company
This Home Page was created by wa3key, Saturday, April 20, 1996
Most recent revision Tuesday, May 6, 1999