Circuit Notebooks

An index of all Circuit Notebooks published are listed below. Numbers 1 to 75 inclusive are not in digital format but can be obtained....

CN No.CQ-TVDATEPAGETOPIC
168Nov 196910MIXED SYNCS
268Nov 196912A BISTABLE BEAM SHIFTER
369Feb 197011VIDICON BLANKING GENERATOR
470May 19709AN IC TIMING GENERATOR FOR SLOW-SCAN
571Aug 197014A LOW POWER TRANSMITTER (70CMS VISION)
672Nov 197011STEP WEDGE AND GRILLE GENERATOR
773Feb 197119ZENER DIODE APPLICATIONS (1)
874May 197112ZENER DIODE APPLICATIONS (2)
976Nov 197113VIDEO AMPLIFICATION
1078May 197230OP-AMP TIMEBASE GENERATOR
1179Aug 197217D-I-Y QUADRANT FADER-MIXER
1281Feb 19733CAMERA TUBE SCANNING CIRCUITS
1382May 19736TRANSISTOR FIELD SCAN CIRCUITS (1)
1483Sep 19736TRANSISTOR FIELD SCAN CIRCUITS (2)
1584Dec 197317CAMERA TUBES & POWER SUPPLIES
1685Feb 197412GREY SCALE & COLOUR BAR GENERATOR
1786May 197418OSCILLOSCOPE TV SYNC PULSE SEPARATOR
1887Jul 197436FITTING A FET TO THE PYE LYNX
1988Nov 197420LOW FREQUENCY OSC USING THE 7413 SCHMITT TRIGGER IC
2089Feb 197525CRYSTAL OSCILLATORS
2190May 197518MOTOR CONTROL CIRCUITS
2291Aug 197532A SIMPLE & VERSATILE SLOW SCAN & LODEF TV PULSE GEN
2392Nov 197526CATHODE RAY TUBE PHOSPHORS
2493Feb 19768OSCILLOSCOPE CALIBRATOR
2594May 197620VIDEO DISTRIBUTION
2696Nov 19764741 IC TESTER. CRT PHOSPHORS
2798May 19779ONE CHIP SPG TMS 3808 NC
28100Nov 197722ATV EQUIPMENT FOR THE 3CMS BAND
29114May 198110A 'PRETTY' COLOUR GENERATOR
30115Aug 19815SYNC SEPARATOR
31116Nov 198124THREE ICs FORM A 4-BIT BCD A/D CONVERTER
32117Feb 198225AN INTRIGUINGLY SIMPLE COLOUR SYNTHESISER
33118May 19828COLOUR SUB-CARRIER GENERATOR
34119Aug 198214SYNC SEPARATOR
35121Feb 198336COLOUR SUB-CARRIER PHASING DISPLAY GUIDE
36122May 198325BBC SOFTWARE TEST CARD
37123Aug 198320FIELD SYNC DETECTOR AND TIME DELAY CIRCUIT
38124Nov 198344MEASURING THE IMPEDANCE OF COAX CABLE
39125Feb 198431LINE DRIVE FROM THE ZNA234 PATTERN GENERATOR CHIP
40127Aug 198458PORTABLE 50HZ SUPPLY
41129Feb 198518A COLOUR GEN-LOCK BOARD FOR THE PROJECT 100 SPG
42130May 198513VIDEO D-A CONVERTER
43131Aug 198538VIDEO COMBINER
44137Feb 198768BLACK AND BURST GENERATOR
45157Feb 199268AN 'S' METER FOR THE WOOD & DOUGLAS VIDIF BOARD
46158May 199258COLOUR PATTERN FROM THE ZNA234 IC
47159Aug 199259BNC COAXIAL ATTENUATORS
48162May 199351VIDEO OP-AMPS
49163Aug 199336AUTO MORSE AUDIO KEYER
50164Nov 199349LATCHING RELAYS
51165Feb 199472AN A-B MIXER
52166May 199456COLOUR VIDEO TRAVELS ON TWISTED-PAIR CABLE
53169Feb 199512A 4-INPUT, LATCHED KEY, VIDEO SWITCHING UNIT
54170May 199513AUTOMATIC VIDEO FADER-SWITCHER
55171Aug 199510CONTROL BY DTMF
56172Nov 199529A DTMF CONTROLLED VIDEO SWITCHER-FADER
57173Feb 199631VIDEO SYNC STRIPPER. AUDIO LEVEL METER
58175Aug 199647REMOTE UP-DATING OF THE NEWS PAGE AT GB3TM
59176Nov 199612ENGINEERING TALKBACK INTERCOMM
60178May 199757STEPPED FREQUENCY BURST GENERATOR FOR TV TESTING
61179Aug 199710NOT ANOTHER FADE TO BLACK CIRCUIT
62180Nov 199773OFF AIR FREQUENCY STANDARD
63182May 199834CRYSTAL OSCILLATORS, SELECTION
64183Aug 199875MODIFYING THE MASPRO SRE-90R FOR ATV PORTABLE USE
65184Nov 199857VIDEO OPTOCOUPLERS
66185Feb 199948AUTO SWITCH-ON CIRCUIT FOR MASPRO SRE-90R
67186May 199934DTMF CONTROLLED EIGHT INPUT VIDEO SWITCHER
68188Nov 199936INDICATORS, METERS AND MONITORING
69189Feb 20008AN ALTERNATIVE MOTORISED PANNING HEAD
70190May 200029SSD AND SMD (SURFACE MOUNT DEVICES AND STATIC)
71191Aug 20005ADDING AN AUDIO SUB-CARRIER INPUT
72192Nov 20007OSCILLOSCOPE CALIBRATOR
73193Feb 200138CURRENT LIMITER FOR LNBs
74194May 200137VISION'S FINE, SHAME ABOUT THE SOUND - MICROPHONES
75196Nov 200116RF BANDPASS FILTERS FOR 1.3 GHz
76197Feb 200223VARIABLE GAIN VIDEO AMPLIFIER
77198May 200217BLACK LEVEL CLAMPS
78199Aug 200243USING COAX RELAYS WITH HIGH VOLTAGE COILS
79200Nov 20028USING THE I²C BUS EXTENDER PHILIPS 82B715
80201Feb 200315SATELLITE RECEIVER CONTROL
81202May 200347A SIMPLE TRANSMIT-RECEIVE SEQUENCER FOR ATV
82203Aug 200330OSCILLOSCOPE CONVERTER FOR NARROW BAND TELEVISION
83204Nov 200339VALID VIDEO DETECTOR
84206May 200421A FIELD PULSE FOR 'THE SIMPLEST PATTERN GENERATOR'
85208Nov 200435USING STRIPBOARD (VEROBOARD) FOR VIDEO PROJECTS
86210May 2005423CMS INPUT SWITCHING FOR GB3TM (BATC I²C)
87212Nov 200524A FLASHING CURSOR FOR ATV
88213Feb 200627A BAR DISPLAY AUDIO LEVEL METER
89214May 200627EXPERIMENTAL AUDIO LEVEL ON-SCREEN DISPLAY
90215Aug 200613VEROBOARD VIDEO DISTRIBUTION AMPLIFIER
91216Nov 200611VIDEO SWITCH FOR PORTABLE OR SIMPLE SHACK USE
92217Feb 200711SIMPLE PEAK VIDEO DETECTOR
93218May 20076THE TEP IQ2 MICROCONTROLLER BOARD
94219Aug 20075AUDIO TEST BURST GENERATOR
95220Nov 20077AREA MEASUREMENT OF IRREGULAR SHAPES USING CCTV
96221Feb 20087A BATISM OF FIRE INTO THE DIGITAL AGE OF ATV
97222May 20087EARTH LOOPS
98223Aug 20087FREQUENCY MEASUREMENT IN THE 10GHz BAND
99224Nov 20087DATV PROGRESS ON 1280 MHz
100225Feb 2009CIRCUIT NOTEBOOK LOOKS BACK & EARTH LIFT BOX