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Linked Page(s)


Parent Page

Linked Page(s)

Aerials and Feeders

Front panel photo


PC Board Menu

PC Board Construction 1

Aerial Matching Unit

Front and Rear panel photos



PC Board Construction 2


Internal photo version 1



PC Board Layout 1


Internal photo version 2



Symbol Explanation

Aerials - VHF



Power Supply Menu

Power Supplies (HV)





Power Supplies (LV)

Amplitude Modulators



Permeability Tuned Osc’r


Cleaning Old Components



Progressive Rec’r Design

Crystal Set

Crystals and Filters Menu

Crystal Filters



RF Amplifier


Crystals for IF Filters



Power Supply


Crystal Measurements



AF Amplifier


Crystals Photo




Design Menu

Design Process



AF Filter


Historic Designs



DC Rec’r/Product Det’r


Kit Design



Tuned Circuit Data


Progressive Receiver Design



AM Detectors and AGC




Re-engineered Units


H-Mode Mixers

CDG2000 Transceiver


Reforming Electrolytics



PA3AKE site


Simple RF Detectors


Heathkit Information Menu

Aerial Matching Unit





IF Filters 1


Solid State Circuits Menu

Solid State Circuits 1 (U)


IF Filters 2



Solid State Circuits 2


PS-1V4 Power Supply



Solid State Circuits 3


PS-23 Power Supply



Solid State Circuits 4


PSU-25 Power Supply



Solid State Circuits 5


RF Switchbox



Solid State Circuits 6


SB-101 Modifications



Solid State Circuits 7


SB-101 Rebuild



Solid State Circuits 8


SB-101 Refurbishment



Solid State Circuits 9


SB-104 Modificationas



Solid State Circuits 10


SB301 Rebuild



Solid State Circuits 11 (N)


SB-401 Changes





SB-Line Inductors


Sources of Information/Parts

Suppliers


Spares and Repairs


Surge Limiter



Station Console


Switch Wafer Repairs



SWR Bridges


Test Equipment Menu

Absorption Wavemeter


Valve PSU



AF Distortion Meter


Valve Transverter



AF Oscillator


WARC and Other Bands



Crystal Activity Meter

Historic Designs

Break-in Circuits



Crystal Calibrator


T/R Switch



Dummy Load





Gate Dip Oscillator

Kit Design - One Approach

Direct Conversion Receiver



LC Bridge


Digital Receiver



Modulation Meter


Simple Transmitter



Return Loss Bridge


Basic Multimode Transmitter



Scope Probe Information


Transverter



Spectrum Analyser


Active Mixers



Valve Tester


Bidirectional Mixer


Typical Receiver Block Designs



12v Power Supply





Product Detectors


Useful Formulae



AF Amplifier





AF Filter


Useful Tools



AM Detector





Crystal Set


Vackar VFO

Download Calculator


RF/IF Amplifier




LC Filter Menu

Bandstop Filters


Valve Circuits Menu

Valve Circuits 1


HF Bandpass Filters



Valve Circuits 2


Transmitter Filters



Valve Circuits 3

Logarithmic Detector




Valve Circuits 4

Measurements Menu

FM Deviation Measurements



Valve Circuits 5


Rec’r Sensitivity Tests



Valve Circuits B1

Mechanics Menu

Indicator Dials



Valve Circuits B2


Metalwork



Valve Circuits B3

Vogad




Valve Circuits B4

Painting and Lettering




Valve Circuits B5

Mixer Terminations



VOGAD


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