- Page 1: How to Build Advanced Short Wave Re
- Page 5 and 6: CONTENTS Page CHAPTER ONE - ADVANCE
- Page 7 and 8: CHAPTER ONE ADVANCED S.W. RECEIVERS
- Page 10 and 11: A block diagram which illustrates t
- Page 12 and 13: It is when we come to the I.F. ampl
- Page 15 and 16: This set obviously has its limitati
- Page 17: The set has a frequency coverage of
- Page 21 and 22: is operating at 1MHZ and has a stan
- Page 23 and 24: A.G.C. Action Apart from the demodu
- Page 25 and 26: ootstrapping between the output and
- Page 27 and 28: Inductors T1 Denco Blue Aerial coil
- Page 29: In common with many R.F. transistor
- Page 32: mounting holes in the tuning drive
- Page 36 and 37: The panel is then used as a templat
- Page 39 and 40: B.F.O. Unit This is constructed on
- Page 41 and 42: The R.F. alignment is very simple,
- Page 43 and 44: CHAPTER TWO MODULAR SUPERHET In the
- Page 45 and 46: distortion inevItably results in an
- Page 47 and 48: odyned to a conventional 470kHZ I.F
- Page 49 and 50: usual emitter bypass capacitor. VR1
- Page 51 and 52: The gate terminal of Tr1 is bias by
- Page 53 and 54:
R2 and (2 are the source bias resis
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Mixer/Osc. Stages The mixer circuit
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ecause more component anchor points
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is not able to drain away the negat
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This device requires very little in
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Class A Circuit If the user is prim
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and D1. C1 is an R.F. supply decoup
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as a low value here would result in
- Page 71:
With the mixer trimmer control set
- Page 74 and 75:
pin 4, has a value of 960pf. When a
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Sets of this type do have advantage
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When this adjustment has been satis
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Note that shortness of wiring is mo
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with some form of I.F. filter rathe
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Adjustment When initially testing t
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I.F.T.1 is a Denco I.F.T.18/465kHZ
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switch is closed it short circuits
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Adjustment Before switching on the
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ut noise spikes which are very stro
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100
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would be necessary to have a three
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Product Detector Although quite goo
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Tr1 is used as a simple inductive f
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The only adjustment which needs to
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mica washer and plastic bush set. U
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In use it is best to use the 1MHZ o
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114
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eing any gaps in the frequency cove
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