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 |
From inside the book
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Page 50
... by - pass condenser has been fitted ( Fig . 13a ) to lead away to earth any interference picked up by the speaker leads , it will nearly always be found that by far the most prolific " collector " of interference is the aerial lead - in ...
... by - pass condenser has been fitted ( Fig . 13a ) to lead away to earth any interference picked up by the speaker leads , it will nearly always be found that by far the most prolific " collector " of interference is the aerial lead - in ...
Page 157
... by - passing - an aspect of short - wave technique often sadly overlooked . If you will glance at the circuit , you will see that we have used the usual anode H.F. choke - actually it is a special short - wave one - but with it there ...
... by - passing - an aspect of short - wave technique often sadly overlooked . If you will glance at the circuit , you will see that we have used the usual anode H.F. choke - actually it is a special short - wave one - but with it there ...
Page 179
... by - pass . .0001 C25 1st L.F. bias by - pass . 25 mfd . C26 1st L.F. anode by - pass . 8 mfd . C27 2nd L.F. coupling . .or mfd . C28 2nd L.F. bias by - pass . 25 mfd . C29 2nd L.F. anode by - pass . I mfd . C30 Output L.F. coupling ...
... by - pass . .0001 C25 1st L.F. bias by - pass . 25 mfd . C26 1st L.F. anode by - pass . 8 mfd . C27 2nd L.F. coupling . .or mfd . C28 2nd L.F. bias by - pass . 25 mfd . C29 2nd L.F. anode by - pass . I mfd . C30 Output L.F. coupling ...
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