SWAN SW-140 TRANSCEIVER
The Swan SW-140 monoband 40m HF rig shown here is one of the gold coloured units that were first produced when Herb Johnson began manufacturing amateur radios. Designed for mobile, portable or fixed station use. Introductory price, in 1962, was $275.00 US available from your dealer. TECHNICAL SPECIFICATIONS....
120 Watts PEP from a 6DQ5 PA tube.
TUBE COMPLIMENT
V16DQ5 P.A.
V212BY7 Driver
V312BE6 Trans. Mixer
V412AU6 VFO
V56BA6 Receiver Amplifier
V612BE6 Receiver Mixer
V76BZ6 1st IF
V86BA6 2nd IF
V97360 Balanced Modulator
V106V6GTA AF Output
V1112AU7 Microphone Amp
V1212AX7 Product Detecter
V136BA6 Carrier Osc.
V140D3 Voltage Regulator
V1512AV6 A.F. Osc.
SPECIFICATIONS.
Frequency Range: 7.2 to 7.35 Mhz
High Frequency crystal lattice filter, 3Kc nominal bandwidth. Unwanted sideband down approximatly 40 db. Carrier suppression approximately 50 db. Receiver selectivity also determined by crystal filter.
Receiver sensitivity less than 1 microvolt at 50 ohms input impedence for signal-plus-noise / noise ratio of 6 db.
Transmits automatically on receiving frequency.
Mechanical, electrical, and thermal stability exeptionally high. Oscillators are voltage regulated and temperature compensated.
Controls include: Main tuning, Volume, Carrier Balance, Mic. Gain, Exiter Tuning, P.A. Tune, P.A. Load, T-R Switch, Supply On-Off Switch, and Tune Switch.
Microphone Jack (1/4") provides for push-to-talk operation. Transmits on AM, (single sideband with carrier) with carrier power of approximatly 25 watts.
Audio response essentially flat from 300 to 3000 cycles on both receive and transmit.
Meter reads P.A. cathode current, 300 ma. full scale. Size: 13 1/4" wide, 5 5/8" high, 11" deep.
Weight: 11 pounds.
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