P C BOARD PROJECT INDEX
1/13/2015
NOTE THE PROJECTS ARE NOT IN THE SAME ORDER AS LISTED BELOW PROJECTS
FROM 73'S AMATEUR RADIO TODAY
ALL THE 73 ARTICLES ARE AT
https://archive.org/search.php?query=collection%3A73-magazine&sort=date&page=1
73 10_91 SUDDEN REC
73
SIMPLE 10M CW TRANSMITTER
73 1 4_90 TS940 MEMORY SELECTOR
73 1_93 CRYSTAL LADDER FILTER
73 1_93 SP-1 TRANSCEIVER
73 1_94 FREQUENCY STANDARD PARTS 1, 2, 3
73 1_94 MICRO IDER
73 1_94 QUAD CHARGER
73 10_90 DUAL VOLTAGE BENCH POWER SUPPLY
73 10_90 DUAL VOLTAGE SUPPLY
73 10_90 MOUSE FET 40 WATT CW RF AM-PLIFIER
73 10_90 VISUAL CW OFFSET INDICAT
73 10_91 10M SIDEBAND TRANSMITTER
73 10_94 AUDIO BANDPASS FILTER RECIEVERS
73 11_00 ADD ON 3 DIGIT VOLTMETER
73 5_92 QRP SIDE COMP73 11_02 BATTERY MONITOR
73 11_87 REPEATER CONTROLLER USING TWO HT’S
73 11_90 FIRE BALL QRP TX
73 11_90 GOOF PROOF REGEN REC
73 11_90 MOUSE FET 40 AMP
73 11_90 SMOKE DETECTOR RECEIVER73 4_91 UNIVERSAL TX
73 11_90 TTL 40M TRANSCEIVER
73 11_91 SIMPLE 10M SIDEBAND AMPIFIER
73 11_93 VOX MOBILE EXTENDER
73 11_93 SOLAR CONTROLLER
73 11_95 gernal purpose wide band preamp
73 12_ 91 Simple TX/TX
73 12_90 AUDIO POWERED TAPE RECO
73 12_91 INSPIRE RECEIVER
73 12_94 SINGLE BAND MAR-X PREAMPLIFIER
73 12_94 SINGLE BAND MAR-X PREAMPLIFIER
73 2_90 HEADSET AND MIKE OREAMP
73 2_90 NR5A 17 METER CONVERTER
73 2_90 SPECTRUM ANALYZER WITH A 555
73 2_91 RADIO DECT TO MICROWAVE RECEIVER
73 2_94 30 MHZ IF PREAMP
73 2_94 ASCII TO MORSE CODE INTERFACE
73 2_99 DUNCAN 40M RECEIVER
73 3_83 fun vac
73 3_94 FOXBOX
73 3_94 FOXBOX
73 4_90 ROBOT ID KEYER
73 4_92 sams1 1750m transverter
73 4_93 TWO_FER
73 4_95 WEATHER SATELITE RECEIVER
73 5_92 copperback keyer
73 5_93 BATTERY WATCHDOG
73 5_93 EXPERIMENTAL POWER SUPPLY
73 5_93 HF RF AMPLIFIER
73 5_94 CARR'S UNIVERSAL VFO
73 5_94 FAST NICD OR NIMH CHARGER
73 5_94 HYPER AUDIO FILTER
73 5_94 QRP KEYING CIRCUIT
73 5_95 CW ON PC
73 5_96 BIOELECTRIFIER
73 6_90 VLF TO 80M CONVERTER
73 6_93 BACK UP BATTERY MONITOR CHARHER ALARM
73 6_93 PORTABLE PACKET DIGIPEATER
73 6_94 MOBILE ON ALARM TIMER
73 6_94 MORSE MESSENGER
73 6_94 MRP4 SOLAR PANEL CONTROLLER
73 6_95 TONE BURST ENCODE DECODE
73 6_97 NICD MAINTENANCE STSREM73
73 7_ 91 LM380 AUDIO AMPLIFIER
73 7_81 FUN XCEIVER
73 7_90 2 METER TRACKING TRANSMITTER
73 7_90 FOXHUNT RADIO DF
73 7_93 UNIVERSAL SPEECH PROCESSOR
73 7_93 DELUXE FUNCTION GENERATOR
73 7_93 EXPANDED DIRECT READING L METER
73 7_94 10 GHZ TRANSMITTER
73 7_94 AM BROADCAST FILTER
73 7_94 DELAY VIDEO TRIGGER FOR OSCILLOSCOPES
73 7_98 CW IDER
73 8_82 SMART SQUELCH FOR SSB
73 8_99 PSK THE MISSING LINK
73 9_90 AGC CIRCUIT
73 9_90 COIL TESTER
73 9_94 1750 transceiver by Curry
COMMUNICATIONS QUARTERLY
Com Qrty Spring 91 Gyrator 2
COM QRTY SPR 91 1296 CONVERTER
COM QRTY WRT 91 UPGRADE 1296 CONVERTER OSC
COM QRTY FALL 96 IF AND 80 db LOG AMP FOR SPECTURM ANALYZERS
COM QRTY WINTER’92 MC13135 TRANSMITTER
COM QRTY SPRING 91 HIGH PROFORMANCE 1296 MHZ CONVERTER
COM QRTY WINTER 92 LOGARITHMIC AUDIO SPEECH PROCESSOR
COM QRTY WINTER ’91 MC2388 TRANSMITTER
COM QRTY SUMMER 98 BASIC STAMP PROJECT FOR TENTEC SSB BOAR
COM QRTY WINTER ’98 7 DIGIT FREQ COUNTER BY CARVER
COM QRTY SPRING 98 TEENY TWOER BY LITTLEFIELD
COM QRTY winter 09 nor’easter 6 M AM TRANSCEIVER BY LITTLEFIELD
COM QRTY JULY 02 VARAIBLE OUTPUT/CURRENT LIMITTED REGULATOR
COM QRTY SUM 92 INPROVING THE DRAKETR-7
COM QRTY WIN 94 DELUX QEP STATION BY PERRER
COM QRTY FALL 94 AM SYNCHRONOUS DETECTOR BY PRATHER
COM QRTY TWOER TRX
COM QRTY CARR VLF RECEIVER
QRPp AND QRP QUARTERLY
QRP QUARTERY WINTER 2011 DAULTON SESE80 RECEIVER
QRP QRTY OCT 91 QSK DIRECT CONVERSION TRANSCEIVER 80M
3/95 VE7ZM 75 METER SSB QRP TRANSCEIVER
9/94 EPIPHYTE SIMPLE SSB TRANSCEIVER
3/96 EPIPHYTE 2 75M SSB TRANSCEIVER
9/94 KBE-3 EPIPHYTE
3/96 FORTY-9ER 40M TRANSCEIVER
9/95 DIRECTIONAL WATT METER BY J PEPER
5/96 EPIPHYTE 2 75 M SSB TRANSCEIVER
SUMMER 98 SWITCH CAPACITANCE AUDIO FILTER
6/96 DFD-5 SIMPLE DIGITAL FREQ DISPLAY
12/96 RAINBOW BRIDGE AND TUNNER
WINTER 97 2N2 NORCAL TRANSCEIVER BY KD1JV
SUMMER 97 MX-40 TRANSCEIVER TUNA TIN-2 BY DOUG HENFRICKS
NORCAL HERRING AID 5 RECEIVER
CB SLIDER BY W6TO
9/94 NW 8040 TRANSCEIVER
6/94 OPTIONAL FREQ COUNTER FOR NC40
MOTOROLA APPLICATION NOTES
AR347 COMPACT 1 KW 2-50 MHZ SOLID STATE LINEAR AMPLIFIER
AN-779 LOW DISTORATION 1.6 TO 30 MHZ SSB DRIVER DESIGNS
AN980 VHF FM RECEIVER USING MC3362/MC3363 DUAL CONVERSION RECEIVERS
MC13175/6 UHF FM/AM TRANSMITTER
AN762 LINEAR AMPLIFIERS FOR MOBILE OOERATION
ARS 11/D BIASING SOLID STATE AMPLIFIERS TO LINEAR OPERATION
2.1.8.4E 140 W 12V VHF BROAD AMPIFIER
ARRL HANDBOOK PROJECTS
CHP 25-39 two tone generator1 Same as in 1015 Handbook
CHP 27-5 SIMPLE SWITCHING 5 A POWER SUPPLY
CHP 14-1 100W Z MATCH READOUT
CHP 17-86 NN1G 20 TO 80 M TRANSCEIVER
CHP 24-21 icom/kenwood interfaces
CHP 22-28 SIMPLE 10 MINUTE TIMER USING 4017 AND 555
CHP 25-43 MOSFET DAUL GATE DIP METER2
CHP 28-18 EXPANDED HEADPHONE MIXIER
CHP 28-10 AUDIO AMPLIFIER WITH AGC USING LM386
CHP 30-2 QRP 3 BAND TRANSCEIVER
CHP 22-28 10 MINUTE TIMER
CHP 30-70,71 3Z500 CONTROL AND ACL CIRCUITS
CHP 27 18V 10A PS
CHP 4-18 DIODE TR SW
CHP 2-65 SIMPLE PIN DIODE TR SWITCH
CHP 30 progressive communication receiver
CHP 34-10 PEP READING RF METER
CHP 25-74 RX noise bridge
CHP 29-11 simple cmos keyer
CHP 17-88 HF AMP USING IFR510
CHP 30-26,27 160 M TRANSVERTER
CQ
CQ APR 2015 BROAD BAND COEFFICIENT BRIDGE
CQ JAN 2015 QRP TX/RX TRANSCEIVER
CQ SQPT 90 QRP-15 TRANSCEIVER
CQ MAR 97 60W 6 M AMP
CQ JAN 1996 W1FB 25 W HF AMP
CQ FEB'10 KITCHENS HIGH PERFORMANCE REGEN RECEIVER
CQ 6_03 pixie
CQ BEVERAGE AMP_SW
CQ 2_10 HIGH PROFORMANCE HF REGEN RECEIVER
CQ 8/04 THE SUPER MITE
CQ 4/09 MODERNIZE HM-102 WATTMETER
CQ VHF 8/97 25 AMP MOSFET POWER SUPPLY
CQ JAN1996 W1FB 25W HF AMPUSING MRF475-2CC2092
CQ May 1998 ICOM ANT SWITCH
HAMRADIO PROJECTS
HR MAR 90 SUPER CHARGER WITH 723
HR JULY 89 RF VOLTMETER
HR NOV 87 THUMBWHEEL FREQ SELECTOR FOR FT-757GX
HR OCT 89 DIGI-KEYER
HR JUN 79 AFC FOR VFO
HR MAR 87 TX RX CONVERTER FOR 902
HR JUN 90 PHASOMETER
HR OCT89 VARIAB;E GAIN 16OM PREAMP
HR FEB. 1985 1KW HF AMP
HR RADIO TR7 MODS
HR OCT'80 TRANSCEIVER
HR OCT 85 YAESU CONVERTER
HR APR'89 MULTIBAND SPEECH PROCESSOR
HR AUG'87 BETTER FREQ STABILITY FOR TR7
HR DEC 89 LOW POWER 4 DIGIT SEQUENCE DTMF DECODER
HR NOV_85 75M TRANSCEIVER BY K1BQT
HR JAN_87 COMP 20M TRX
HR JAN 89 NE602 QRP 20M CW TRANSCEIVER
HR JAN 90 QRP TLC KEYER
HR JULY 89 50 MHZ BRIDGE
HR MAY 89 MICROFARAD COUNTER
HR NOV 85 75M TRANSCEIVER BY K1BQT
HR NOV 88 1296 LOW NOISE AMPLIFIER
MOTOROLA REPLACEMENT POWER SPEAKER BOARDS
REPLACE BOARD FOR SLN4244A0001
REPLACE BOARD FOR TLN2435A P1
NUTS AND VOLTS
JAN 1999 NE602 IF BREAD BOARD BY Carr
VHF RECEIVER
GUITAR TUNNER
POPULAR ELECTRONICS
7_67 METAL DETECTOR
1_95 WWV REC
12_71 AudioComp9_74 400W STEREO AMP
2_90 TOME BURST GENERATOR
1_01 IN CAP TESTER
1_95 STEP ATTENUATOR
2_02 CAP TESTER
3_94 9 BAND REGEN HF RECEIVER
4_94 PRESELECTOR FOR AM RADIOS
4_95 PRESELECTOR AM BROADCAST RADIO
4_98 DTMF AUTO REDAILER
4_98 POWER LINE MONITOR
5_98 PORTABLE CD STEREO AMP
7_97 DTMF WIRE TESTER\11_90 MAR-1 RF AMP BY J CARR
11_93 DVM ON PC
11_93 GAS DETECTOR
11_95 AUDIO FREQ RESPONSE TESRER
12_71 AUDIO COMPRESSOR
12_95 MMIC AMP USING MAR-6
12_98 ELECTRONIC WEATHER VANE
BREADBOARDS
IC DIP AND SOIC BREADBOARDS
tssop breadboard ALL KINDS IF BREAD BOARDS
HIGH VOLTAGE POWER SUPPLY BOARDS
10K VOLT DIODE BOARD
10KV CAP BD
K1SG 6 KV power supply, 2 board set
5400 V PS
2700 V PS
HEATHKIT BOARDS
heathkit audio hw101
HEATHKIT SB104 NOISE BLANKER
KR4HV STEPSTART AND KEYING for SB200
SB200 POWER SUPPLY BOARD
QEX
QEX Nov 2014 RECEIVING CONVERTER FOR 2 M RADIO ALLOWS COVERAGE FROM
18 TO 74 AND 222-225
QEX 9_13 ESR METER
QEX JAN/FEB 2004 200 WATT HF AMP
QEX NOV/DEC ‘1999 100 WATT HF AMP
QEX NOV/DEC 2010 AN RF PHASE METER
QEX 9_98 REMOTE BANDSWITCH FOR THE BUG CATCHER
QEX 10_96 SIMPLE TR SEPUENCER
QEX 11_01 two meter reflective sp4t pin diode sw
QEX 11_99 100 W MOSFET HF AMP
QEX 11_ 98 FAST DIGITAL OSCILLATOR STABILIZER
QEX 11_07 SAN2PC SPECTRUM ANALYZER TO PC
QEX 1_00 250 MHZ SYNTHESIZER SIGNAL SOURCE
QEX 1_00 SCANNER CONTROLLER FOR VARACTOR TUNED RECEIVERS
QEX 1_01 DATA ACQUISITION FOR COMPUTER
QEX 1_05 10 G WAVEGUIDE PREAMP
QEX 1_08 2256 PLL LOCAL OSCILLATOR
QEX 1_08 SQUELCH AMPLIFIER
QEX 1_99 PAIR 3CX800'S ON 6M
QEX 2_96 FREQUENCY STABILITY FOR LC OSCILLATORS
QEX 3_00 1691 MHZ DOWN CONVERTER FOR WEFAX 8877
QEX 3_04 1296 MHZ OSCILLATOR
QEX 3_93 NO TUNE DRIVER FOR 432 MHZ
QEX 3_99 POWER SUPPLY FOR MOSFET POWER AMPLIFIER
QEX 4_06 UNIVERSAL QRP TRANSMITTER UPDATES
QEX 5_04 100KHZ TO 2 GHZ PREAMP
QEX 5_99 300 W HF MOSFET AMP FOR 50 MHZ
QEX 7_04 DOUBLY BALANCED H-MODE MIXIER FOR HF
QEX 7_93 NO TUNE 222 MHZ TRANSVERTER
QEX 7_95 TERMINATION INSENSITIVE AMPLIFIER
QEX 7_97 DDS VFO
QEX 7_97 VOLTAGE BOOSTER
QEX 7_98 HIGH PERFORMANCE FRACTIONAL N SYNTHEZER
QEX 7_99 DIPLEXER FILTER FOR HF MOSFET RF AMP
QEX 9_00 NARROW BANDPASS FILTER FOR HF AMP
QEX 9_00 VHF REGEN RECEIVER
QEX 9_01 SIMPLE HIGH RESOLUTION DC VOLTMETER
QEX 9_07 DIFFERENTIAL LEVELING MICROPHONE
QST
QST Oct 92 Noise voter
QST SEPT '70 COLLINS QSK
QST JAN 81 Touch tone CONTROLLER for ARECS
QST 2-95 AGC Preamp
QST AUG 15 HEADSET PREAMP
QST 12_92 EXPANDED VOLT METER
QST FEB 2014 10 M BEACON
QST 6_04 DRAKE SYNTHESIZER PROJECT NOTES
QST 1 15 WSPR 30M TRANSMITTER
QST 8 15 audio notch clipper
QST 1 15 HYBRID HF TRANSMITTER
QST 1 15 fIVE WAY REMOTE ANTENNA SW
QST 1 15 15 1.5 KW AMP
QST 3_89 80 METER CONVERTER
QST 9_87 W1FB TUNING DIODE VVC 40M VFO
QST' 6_91 W1FB UNIVERSAL VFO
QST JULY 1_14 IMPROVE THE COLLINS S METER
QST 5_ 03 MODERN GDO GATE DIP OSCILLATOR
QST MAY 1999 RADIO DIRECTION FINDING PROJECT BY WA2EBY
QST 5_94 SABIN NOISE SOURCE
QST OCT 90 6 M BRICK AMP
ST Jan 2013 SDR CONVERTER
QST NOV. 2012 AUTOMATIC MOBILE POWER CONTROL
QST JAN 2011 WATTMETER PROJECT
QST FEB. 2012 RELAY BASED TR SWITCH FOR VINTAGE STATION
QST QST 1_12 BLOOM Transistor tester
QST NOV 09 ROCKLESS ROCKMITE
QST 08-08 Steve Weber MMR40_DB
QST MAR 1994 SPENCER LEAD ACID BATTERY CHARGER
QST 11_94 SPENCER 13V 5A PS
QST 12_94 1w AF AUDIO AMPLIFIER
QST SEPT 1994 SMART CHARGER FOR NICKEL CAD BATTERIES
QST NOV 11 FOUR TONE SSB TESTER
QST NOV 11 KEYING FOR ALS-600 AMPLIFIER
QST NOV.2000 FLEXIBLE DIGITAL MODEL BY MITRENGA
QST APR. 2002 LIGHTING DETECTOR PROJECT BT N2PWP
QST 1_74 TR7 MODS
QST APR_06 NOTES ON THE ARC DETECTOR PROJECT.
QST AUG 2008 _40 m transceiver by KD1JV
QST JUNE 2009 SOUND CARD
QST FEB AND APR 2011 40M TRANSCEIVER
QST 4/08 GEIGER COUNTER BY KITCHENS
QST July 1995
VARIABLE AUDIO FILTER
QST JUNE 2006 CW AUFIO FILTER
QST JUNE ’06 160 M LOOP RECEIVER PREAMP
QST JUNE 96 LED READ OUT FOR SWR POWER METER
QST AUG ’88 160/80 METER RECEIVER PREAMP
QST 9_88 LOW COST MIC PERAMP
QST QST JAN 11 WATTERMETER
QST NOV 10 EXOANDED VOLTMETER FOR 120, OR 240 Vac
QST JUNE 1980 MODS FOR HEATH AND 75S3 NOISE BLANKER
QST 93 R2 RECEIVER and T2 Transmitter
QST 4-93 REMOTELY CONTROLLEDANTENNA SWITCH BY KG7SG
QST 11-93 SIMPLE TWO TONE AUDIO GENERATORQST 04-09 DSP
QST8_88 144_220 amp
QST 4_05 SMITH Ant Sw
QST 5_96 CARVER IF
QST 8-08 AUDIO COMO KEYER INTERFACE
QST 11_94 30_40 TRX
QST 12_94 A SIMPLE 1W AUDIO AMPLIFIER
QST 8_93 V AND F MONITOR
QST 94 30-4- TRX
QST 96 IF System
QST JUNE 80
QST 12_02 eq5+
QST june09 vocal Keyer
QST June 08 ARTICLE
QST Oct 82
QST ’92 ULGY WEEKENDER
QST NOV 1992 DAUL RADIO SPEAKERS
QST5_93 Handi-finder
QST 6/80 HEATHKIT/75S3 NOISE BLANKER
QST_Jun_1980 PEP Wattmeter Modification_H&K__p48-49
PEP Wattmeter-a la Heath_7612030
QST 99 kelley swr meter
QST0797 VOLTAGER BOOSTER
QST 4_79 HW8 QRP RF AMP
QST 6_09 MFJ425 PS FAN CONTROLLER
QST 40A PSU by Spencer G4YNM v2
QST 2’10 KITCHINS REGEN RECEIVER
QST 0508 TAK-40
QST MORE ON UNICOUNTER
QST_Dec05_SUPERPACKER
QST_Jul_1997_p40-43
QST SPECTRUM ANALYZER TO PCsan2pc112d
RADIO TELESCOPE BY DAVE EK
QST Spencer 40 ps
SAT DEC 1987 RX NOISE BRIDGE
QST_Feb_1986 Simple, Effective Receiving Aid, p15-19
QST AUG 73 WB4VVF ACCU-KEYER
SPENCER 40 A POWER SUPPLY
SUPERPACKER
QST UNICOUNTER
QST 11 ’02 N0GSG DSP RADIO DIRECTION FINDER
QST 9_01 VLF ACTIVE AMRAD ANTENNA
QST SEPT 1993 LONG HAUL BATTERY CHARGER
QST 11 .92 ACTIVE ATTENTUATO
QST 2_90 QRP WATTMETER
QST 4_89 W1FB RF FET AMPLIFIERS
QST 4/89 MICROPHONE BOOSTER
QST 5_89 TIME DOMAIN REFLECTOMETER
QST 7_94 aUDIO SWR ADAPTOR
QST 12/91 DESK TOP MICROPHONE
QST NOV 1987 PROGRESSIVE RECEIVER
QST SEPT 1970 COLLINS QSK
QRPp
3/95 VE7ZM 75 METER SSB QRP TRANSCEIVER
9/94 EPIPHYTE SIMPLE SSB TRANSCEIVER
3/96 EPIPHYTE 2 75M SSB TRANSCEIVER
9/94 KBE-3 EPIPHYTE
3/96 FORTY-9ER 40M TRANSCEIVER
9/95 DIRECTIONAL WATT METER BY J PEPER
5/96 EPIPHYTE 2 75 M SSB TRANSCEIVER
6/98 SWITCH CAPACITANCE AUDIO FILTER
6/96 DFD-5 SIMPLE DIGITAL FREQ DISPLAY
12/96 RAINBOW BRIDGE AND TUNNER
12/97 2N2 NORCAL TRANSCEIVER BY KD1JV
6/97 MX-40 TRANSCEIVER TUNA TIN-2 BY DOUG HENFRICKS
NORCAL HERRING AID 5 RECEIVER
CB SLIDER BY W6TO
9/94 NW 8040 TRANSCEIVER
6/94 OPTIONAL FREQ COUNTER FOR NC40
RADIO FUN PROJECTS
RF 1_92 KEYER
RF 2_92 LIGHT TX RX PAIR
RF 4_92 10M AM TRANSMITTER
RF 8_91 CORNELL HF PREAMP
RF 10_91 10 MINUTE TIMER
RF 91 EL CHEEPO CPO
W1FB QRP CLASSIC PROJECTS
W1FB 24MHZ CONVERTER
W1FB HW-8 RF AMP
W1FB LITTLE JOE TRANSMITTER
W1FB NOEPHYTE RECEIVER
W1FB QRP CLASSICS 30 METER TRANSMITTER
W1FB DSSC GENERATOR
W1FB CLASS C 5W AMP
W1FB BREAK IN DELAY TR
W1FB QSK DIODE TR SWITCH
W1FB BFO
W1FB CHALLENGER 2
W1FB TX EXCITER FOR 30M
W1FB PEBBLE CRUSHER 2
W1FB UNIVERSAL VFO
W1FB SERIES TUNED VFO
W1FB S-METER
W1FB DIRECT CONVERSION RECEIVER
W1FB MMIC AMPLIFIER
W1FB BROADBAND AMPLIFIER
W1FB VARIABLE AUDIO FILTER
W1FB DELEX 5 W TRANSMITTER
W1FB 160 M RECEIVER
W1FB SUPERHET MAINFRAME RECEIVER
W1FB DIRECT CONVERSION RECEIVER
W1FB DIODE TWO BAND CONVERTER
TR-7 MODS
HR AUG 87 BETTER FREQUENCY STABILITY FOR TR7
COMM QUARTERLY TR7 MODS
DRAKE TR RENEWED PROJECT
EVERY THING ELSE, THE GOOD STUFF
K2_digital_interface_II
CROWBAR CIRCUIT
AM BROADCAST transmitter and synthesizer
zs2acp CB TO 6M TRANSVERTER
VK3EM SLA CHARGER V3
6 AND 10 METER SSB TRANSCEIVERFLEXABLE STEPPER MOTOR DRIVE
DDS GENERATOR AND VFO BOARDS USING THE AD8950 DDS MODULE FOR VK5TM
AND LU5DJV, INFORMATION ON DVD
DH8BQAAUDIO BREAK OUT BOX BY W2MY/5
BENSOM SW+RIT CIRCUIT
10XB OSC CIRCUITS
DIRECTIONAL COUPLERS/SWR DETECTORS FOR 145 TO 435 BY PA0NHC
RADIO ELECTRONICS 1_91 www.n5dux.com SHORT RECEIVER
PS-3A 723 POWER SUPPLY
SOWDEN HIGH POWER HARMPNIC FILTER
HARRIS RF382 CONTROLLER
HP141T to COMPUTER INTERFACE
STEVE WEBER SWBC RECEIVERD
TEKTRONICS HORIZAL DRIVE REPLACE BOARD
L7YHF DL4YHF freq_counter
W5USJ MRX-40 SMT RECEIVER
MINIMA-GENERAL COVERAGER
TRANSCEIVERYo4hhp.wordpress.com/2014/01/22/pcb-for-minima-general-coveragetransceiver/1 DER 40 POWER SUPPLY
1256 MHZ PLL_Kocsis
1296 POST AMPNO TUNE BY McINTIRE
136 KHZ BEACON TRANSMITTER
2304 MHZ IMFET AMPLIFIER
600 w MRF150 AMP AND HARMONIC FILTER BY SOWDER
75 W 432 LINEAR AMPLIFIER
78Lxx/ 78xx REGULATOR CIRCUITS.
AA10A090 25 w audio amp by John Keith
AN762 APP NOTE
ANDY MITZ ONE REANSISTOR RADIO
ARRL CODE PRACTICE OSC
ASTRON PS15D101 AND PS15D103 BOARDS, PS15C221 AND PS15C222,
MC-20A-1
AUTO SW REC BANDPASS FILTER
BIX14MHZ SSB 14 MHZ TRANSCEIVER
Boards from John Keith bwelectronics.com ,Astron rebuild board set PS15D122
BRADY 1 WIRE BAROMETER PROJECT
BRAY BAROMETER
CARL SHOEMAKE AK20 COR BOARD
CICCHINELLI SINGLE BOARD LOGIC ANALYZER
ComClone2 PROJECT
CORNELL VLFREGEN PERAMP
DAVE KELLY CCD ANTENNA
DENTRON GLA100O
DENTRON MLA-2500 CAP BOARD
DETRON TU-6B TUNED INPUT BOARD BY WD7S
DGPS RECEIVER
DIGITAL LED wattmeter
DOPPLER TO APRS INTERFACE BY K0OV
Drake TR-7 RENEWED PROJECTS
DYNACO SCA-35 CAP BOARD
EK CIRCLE SETTINGS PROJECTS
EL 40A1 400W ELECTRONIC LOAD
ELECTOR DIGITAL WATT METER WITH LCD DISPLAY, 1KHC TO 1GHZ,
INPUT SENSITIVITY 1 NANOW TO 1 WATT
ELECTRONICS AUSTRALIA NOISE AND DISTORTION METER
ELECTRONICS NOW FEB ’97 NE602 BREAD BOARD BY CARR
ELEKTOR LITHUM BATTERY CHARGER
FLEA_49M MINIMALIST TRANSCEIVER
FT707 POWER SUPPLY BOARD
FUNCUBE UPCONVERTER
G4CLT TRANSCEIVER
GLA 1000 TUNED INPUT
GREENE VLF RECEIVER
Gyrator III VLF RECEIVER BY STOKES
HAGEMAN AIRCRAFT RECEIVER PROJECT
HANSEN TRIODE AMP CONTROLLER PROJECT
HEATH KIT SB104 NOISE BLANKER
HEATHKIY HW101 REPLACEMENT AUDIO BOARD
HOME POWER 9_01 CONVERTING FLASHLIGHT TO LEDs
HRPT PDUS CHRPT DECODER
JOHN KEITH 25 WATT AUDIO AMP AA-10A-1
K0OV WIDE RANGE DOPPLER ANT SW
K6EIL IMPROVER NEOPHYTE RECEIVER
K6XX TUNING INDICATOR
K9AY 160 M LOOK ANTENNA SITCH AND AMPLIFIER
KA8PHO 3 DIGIT VOLT METER PROJECT
KD2BD ATV AM VIDEO MODULATOR
KI0AG MICRO DUPLEXED
KR5L CW ZERO BEAR DETECTOR
MODEL ROCKET ALTIM
ModMon - WB0SPM v1r6_Remote_Pick-Up
MOELL DF ANTENNA SWITCH
MOELL DOPPLER DF 3
MOELL OFFSET ATTENTUATOR
N&V AUG08 VHF RECEIVER
N0SS BROADBAND HF NOISE GENERATOR
NR4C- 6 POSITION POWER POLE
PAUL DAULTON SESE-80 80 METER SSB RECEIVER
PHILLIPS AN1996 DEMODULATING AT 17_7 WITH SA605
PRACTICAL WIRELESS FAX TUNING AID
QRP CLASSICS TWIN QRP-QRO
QRPp 15-20W LINEAR HF AMP
RANDY HENDERSON TRANSCEICER
Six Position Antenna Switch Control project
SM0VPO AUDIO AMPLIFIER
SM0VPO 10 HF AMPLIFIER
SPENCER SATELITE TRACKER USING PIC116F688
SPENCER SATELITE TRACKER USING PIC116F688
SSM2165 MIC PREAMP AND COMPRESSOR-1
STEVE WEBER FAIRLY SIMPLE 75M SSB RIG WITH PTT
Steve Weber PSK v2 transceiver
SUFFOLK 144 TRANSVERTER
SUFFOLK 144 TRANSVERTER
TDA AUDIO AMPLIFIERPROJECT
TED LEE GI7B UPDATES
TOMI ENGDAHI TIME DOMAIN REFLECTOMETER KIT
TS930 REPLACEMENT POWER SUPPLY BY VK4AMZ
TTT8-StepbyStep_PDF
ULTRA SIMPLE 6M RECEIVER
VE2EMM DF projects
VE2ZAZ 1269 TX CONVETER
VE3DNL CRYSTAL CALIBERATOR
VE3DNL CRYSTAL CALIBRATOR
VHF WEATHER SATELLITE RECEIVER
W1FB BC-BAND DX RECEIVER
W1FB THREE ANT SWITCH
W4TZ tuned input filter
WA2DJN UNIVERSAL POWER SUPPLY