KW Electronics KW-201 Automatic Numbering Machine User Manual
- June 9, 2024
- KW Electronics
Table of Contents
KW Electronics KW-201 Automatic Numbering Machine
INTRODUCTION
The KW 201 is an Amateur Band Receiver specifically designed for optimum performance on Single Sidebandit Eleven ranges give coverage in the amateur bands from 1.8 me/s to 30 me/s. C tAi
The KW 201 incorporates a mechanical filter to give an I.F. selectivity of 3.1 kc/s at 6 d.b., and 6 kc/s at 60 d.b. For the keen C.W. man a ‘Q’ MULTIPLIER is available as an optional extra, giving a variable range of 3.1 kc/s to 200 cycles selectivity.
For S.S.B. reception at its best the KW 201 features a crystal controlled first mixer, crystal con-trolled B.F.O. (both upper and lower sideband). The V.F.O. is of similar design to that used in the KW 2000 and KW 2000A Transceivers which have, over the past years, gained a very high reputation for extremely stable performance. (Measured drift 30 minutes after ‘switch-on’ only 30 cycles) a Slide Rule Vernier type dial is employed with discreet green illumination. Frequencies to the accuracy of 1 Kilocycle can be read off this novel means of calibration.
The KW 201 is light and robust and employs printed circuit fibre-glass board — the whole unit being, housed in the ‘G’ line cabinet. This unit makes an admirable match for the KW Vespa Transmitter, KW 2000 and 2000A Transceivers and the KW 600 Linear Amplifier. The appearance is enhanced by the new style ‘S’ meter and the LSB/USB indicator motifs.
KW 201 RECEIVER SPECIFICATIONS
FREQUENCY RANGE: 1-8 – 2.0, 3.5 – 3.7, 3.7 – 3.9, 7.0-7.2, 14.0-14.2,
14-2-14.4, 21.0-21.2, 21-3 –
21.5, 28.0- 28.2, 28.4-
BANDS: Eleven.
VALVE LINE-UP: 28.6, 28.6 – 28.8 me/s. R.F. Amp EF.183 2nd IF. 6BA6 1st
Mixer 6BE6 Prod. Det. 12AX7 Band Osc. 6AM6 AVC/REC 3xBAY31 2nd Mix. 68E6 ‘S’
Meter Amp. 12AT7 VFO/ISOL AMP. 6U8 BFO 12AT7 1st IF AMP. 6BA6 AF AMP. 0/P
ECL82
POWER SUPPLY: 7xBY130 MODES• Selectable side-band, CW, AM (exalted
carrier).
INPUT IMPEDANCE: Coaxial 50/75 Ohms.
SENSITIVITY: Better than 1 uv for 500 mw. SIGNAL/NOISE: Better than 1 uv
for 20 d.b. S/N. I.F.
SELECTIVITY: 3.1 kc/s at 6 d.b. 6 kc/s at 60 d.b. (3.1 kc/s to 200 cycles
with ‘Q’ multiplier). `S’ METER: Calibrated for 50 uv input to antenna socket
equal to S9.
CONTROLS:
Function (Off — LSB/USB)
AF Gain Cal — On/off
RF Gain Band switch
Pre-selector Tuning
DIAL DRIVE: Reduction ratio 1:10.
POWER SUPPLY: 200-240v AC 60 Watts (11 Sv also available).
AUDIO OUTPUT: 1.7 watts. Built in 3 ohm elliptical speaker.
DIAL: Slide rule Vernier scale 8 inches. Effective scale length 12.5 inches.
MUTING: Receiver muted by internal bias (Applied by external Break Switch
from associated Tx.)
CONSTRUCTION: ‘0’ Line lift-up’ lid cabinet.
DIMENSIONS: 131″ x 5r x 121″ deep.
Weight: 19 lbs. PRICE: £105.0.0 (complete with 13 crystals).
OPTIONAL EXTRAS: 100 kc/s Crystal Calibrator £6.0.0. ‘Q’ Multiplier
£8.10.0.
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