Short-wave Manual: A Treatise on the Design, Construction, Operation and Adjustment of Short- and Ultra-short-wave Receivers, Aerials and Equipment, with Designs for Eight Short-wave ReceiversFrederick James Camm |
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Page 64
... SCREEN . -INSULATING MATERIAL . -SECONDARY . FORMER . GRID WINDING SHOWN DOTTED UNDER COPPER SHIELD COPPER ΤΟ GRID PAXOUN OR CARD FORMER H.T. TO DOUBLET AERIAL ΤΟ EARTH AERIAL WINDING ON LARGER PAXOUN FORMER , CENTRE IS EARTHED DIRECT ...
... SCREEN . -INSULATING MATERIAL . -SECONDARY . FORMER . GRID WINDING SHOWN DOTTED UNDER COPPER SHIELD COPPER ΤΟ GRID PAXOUN OR CARD FORMER H.T. TO DOUBLET AERIAL ΤΟ EARTH AERIAL WINDING ON LARGER PAXOUN FORMER , CENTRE IS EARTHED DIRECT ...
Page 179
... screen potr . 15,000 ohms . [ 2,500 ohms . R9 Ist Detector anode filter . RIO I.F. grid filter . 100,000 ohms . RII H.F.-I.F. screen filter . 30,000 ohms . [ ohms . R12 H.F.-I.F. screen filter . 20,000 R13 I.F. auto bias . 300 ohms ...
... screen potr . 15,000 ohms . [ 2,500 ohms . R9 Ist Detector anode filter . RIO I.F. grid filter . 100,000 ohms . RII H.F.-I.F. screen filter . 30,000 ohms . [ ohms . R12 H.F.-I.F. screen filter . 20,000 R13 I.F. auto bias . 300 ohms ...
Page 186
... screen carrying the band - spread condenser in position and bolt this to the chassis , at the same time attaching the lower screen beneath it . The upper screen may then be locked to the I.F. dividing screen . Attach a flexible coupler ...
... screen carrying the band - spread condenser in position and bolt this to the chassis , at the same time attaching the lower screen beneath it . The upper screen may then be locked to the I.F. dividing screen . Attach a flexible coupler ...
Contents
AN INTRODUCTION TO THE SHORT WAVES | 9 |
OPERATING YOUR FIRST SHORTWAVER | 14 |
BANDSPREAD TUNING | 18 |
Copyright | |
26 other sections not shown
Common terms and phrases
adjustment aerial coil aerial system amateur amplification anode arrangement B'casting band band-spread Bandoeng baseboard Broadcasting House Bulgin by-pass calibration capacity chassis circuit coil components conductor connected construction coupling Cuba dah dah dah dit dah dit dah Daventry detector stage detector valve dial diameter dit dit dit down-lead Dubilier earth Eddystone efficiency EIAR electrical enamelled wire experimenter filter fixed condenser former frequency grid coil H.F. choke H.F. stage Habana India Radio insulated kc/s length maximum megohm meter method metres mmfd mounted obtained ohm 1 watt ohms operation oscillator output p.m. Addr p.m. Daily panel pentode position potentiometer quench reaction condenser reception reflector Relays resistance screen selectivity short waves short-wave short-wave receiver shown in Fig signal strength slow-motion socket stations suitable superhet switch tapped terminal Trans transformer tuning condenser tuning range turns two-valve ultra-short-wave valveholder variable condenser watt resistor waveband wavelength whilst winding wire WPIT