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G8MNY > TECH 14.04.06 13:30l 272 Lines 10724 Bytes #999 (0) @ WW
BID : 26173_GB7CIP
Read: DL1LCA GUEST
Subj: TECH by Subject Index Update
Path: DB0FHN<DB0FOR<DB0SIF<DB0FHK<DB0ACC<DB0GOS<DB0RES<ON0BEL<GB7CIP
Sent: 060414/1054Z @:GB7CIP.#32.GBR.EU #:26173 [Caterham] $:26173_GB7CIP
From: G8MNY@GB7CIP.#32.GBR.EU
To : TECH@WW
Hi Readers, (Updated Apr 06)
Here is the current list of the ever expanding collection of TECH buls.
Not all of the 191 buls (inc this 1) will be on your BBSs yet, but they will be
soon. At least 2 bulletins is sent each day, so the whole lot is repeated about
3 times a year. I no longer split files up so some of the files are large.
There are often updates to these files as I Rx feedback on them etc. The date
of the update is included in the 1st text line of each bulletin, so it can
easily be compared with your own files to see if you need an update. The file
set is not numbered as this would exclude new files in the subject set etc.
Most of the files use 8 Bit ASCII graphics code page 437 or 850.
(Note for BBS SYSOPS, please delete old versions if you have no default timeout
set up on your BBS!)
Subject Title By Last Update
AERIALS
13cms 2 Lambda Slot G6KIU
13cms Yagi from Prigles Can KN9MWR Mar 06
23cm Skeleton Alford Slot G8MNY Dec 03
23cms 65el loop Yagi details ?????
23cms 10el Yagis for ATV G3ZJO Feb 06
23cms 6el Yagi DG2GAJ Mar 05
23cms Flat Plate Aerial G8MNY Jan 03
2m & 6m Band "Neptune" Aerial G8AMG
2m 3el Yagi G0FTD Mar 06
2m 4el Quad you can build KI6DS
2m Fullwave Dipole G8MNY Dec 03
2m Slim Jim G0OEK
3 band VHF indoor aerial G0FTD
4m 5/8 Vertical G6OHM Nov 04
4m J Pole G6OHM Nov 04
6m 6el Yagis SP7QHP
6m 8el Yagi IK0ZIZ
6m Yagi from TV Antenna DG0OPK
70cm 19el Tonna Yagi info G0FTD
70cm 8el Yagi 2E1ESY
70cms & 2m Dual Band Aerial VK4XT
70cms 22el Yagi KE4IQQ
70cms Bowtie Beam G6OHM
70cms Collinear 2E1ESY Nov 05
70cms Bazooka Dipole PD2HFE May 04
A Nest of Dipoles for HF G8MNY Jun 05
Balloon & Kite Aerials G8MNY Mar 06
Bent Dipole with GAIN! SP5RH ?
Delta Loops G4WYW
Simple /P HF Dipoles G8MNY May 04
Understanding Trapped Antennas G8MNY Feb 06
AERIAL BITS
ATUs
HF ATU & SWR Bridge VC3000LP G8MNY Mar 06
VHF ATU Homebrew Design G8MNY Aug 05
BALUNS
1:6 HF balun(200,300,450,600ê) PD2HFE Dec 04
50-72ê Balun for HF freq's G8MNY Jun 04
Choke Balun for HF G8MNY Dec 04
Coiled Coax Choke Balun for VHF G8MNY Jun 04
Pawsley Stub Coax Balun G8MNY Jun 04
Coax Sleeve Balun G8MNY Aug 04
FILTERS
23cms Filter G8MNY Dec 03
2M Cavity Filter VK2DKW
6m Filter Design? G8MNY Apr 04
60m Lowpass filter G3YRH Aug 04
VHF/UHF TVI Filter G8MNY Jan 05
ROTATORS
Rotator Alenco Diagram G8MNY Nov 05
Rotator Kenpro KR400 info G8MNY Nov 05
Rotator Radio Shack info G8MNY Nov 05
Rotator Western WE115 info G8MNY Nov 05
Rotator Yaesu G250 info G8MNY Jan 06
Rotator Yamato YB101 info G8MNY Nov 05
OTHERS
144/432MHz Homebrew Duplexers G8MNY Jun 04
4x Power Splitter for 2M or 70cm G8MNY Jan 05
Doppler DF Aerial Design G8MNY Dec 05
Making a Phasing Harness G8MNY Jan 05
Stacking, Baying or Boxing Ant G8MNY Dec 05
ATV/TV (Sent to ATV/TECH etc)
625 Line PAL Spec v Digital G8MNY Mar 06
10 Pin VCR Camera Connections G8MNY
A TV masthead Preamp G8MNY Dec 04
Black & Burst Sync Buffer G8MNY Feb 05
IR Remote control failures G8MNY Apr 06
Low Power Video Buffer G8MNY Feb 06
Radar clipper for 23cms G8MNY Feb 06
S-Video pin-out connections G8MNY
SCART Video Connections G8MNY Feb 06
VCR Triplexer to TV G8MNY Mar 06
VHF/UHF TVI Filter (As above) G8MNY Jan 05
Y Analoge SAT Rx bad for ATV G8MNY Feb 05
CONNECTORS (Sent to IBM/ATV etc)
25 Pin D-Type Parallel Port G8MNY May 04
Cables for Laplink, Fastlynx etc G8MNY
Diskette Drive Connector G8MNY
Gameport/Joystick Connections G8MNY
IBM Video Connections G8MNY
IBM XT/AT Keyboard connections G8MNY
ISA I/O card pin out M1BYT
Mouse Connections G8MNY Dec 05
Serial Interface Connections G8MNY Mar 05
CW
Passive CW headphone filter G8MNY Mar 04
CW K Pip Tone unit G8MNY Jan 05
FT290 CW KOX Circuit G8MNY Feb 06
TS700G CW KOX add on unit G8MNY Feb 06
MAINS CIRCUITS
Fluorescent Lamp Circuits G8MNY Apr 06
LED as a mains NEON G8MNY Dec 05
Mains Power protector G8MNY Dec 04
SCR Drill Speed Controller G8MNY Feb 05
Soldering Iron Economiser/Boost G8MNY Dec 04
TRAIC Light Dimmer G8MNY Feb 05
MICs
A Simple V.O.X. Circuit G8MNY Jun 05
Another Mic Preamp 2E1ESY
Mic DJ Preamp G8MNY Jan 06
Mic Preamps F5PBG Oct 05
Phantom Bal Mic Preamp+Gum Mic G8MNY Oct 04
MODIFICATIONS
FT290/690/790 DC power mod. G8MNY Feb 06
3 way supplies for radio etc. G8MNY May 05
PSK31 isolation interface G8MNY Feb 06
BHI Noise Eliminating DSP LS G8MNY Apr 06
PAs
4CX250B PA Regulated Supplies G8MNY Dec 03
4CX250B PA Timing & Control G8MNY Oct 05
DC/RF Sensing PA Switching G8MNY Dec 03
Non relay instant RF Switching G8MNY Oct 05
Transistor PA Biasing G8MNY Nov 03
/P & /M
12V Cow Fence for /P G8MNY Dec 03
12V Fluorescent Tube Inverters ZR6CPB & VK3EUB
12V RF immune AF Booster Amp G8MNY Dec 04
A light 17M /P Mast design G8MNY Apr 05
Gyn polling up large masts G8MNY Apr 06
Hands Free Mobile Mic G8MNY Sep 03
LED Lights DC0OS Apr 05
Vehicle Gutter /P Mast Support G8MNY Apr 05
Windup 8m Mast for /P G8MNY Nov 04
Windup Torch info G8MMY Dec 05
/P POWER
1A Float/charge Pb Acid Batt G8MNY Oct 05
2nd Car Battery for /M & /P G8MNY Nov 04
7AH "F" NiCad Battery Pack G8MNY Dec 03
A battery Zapper by ON4CBL ON4CBL Apr 04
Auto SCR charger for Car Batts G8MNY Jan 05
Cheaper Generators (EU only) G8MNY Mar 06
HONDA Generator EX500 info G8MNY Mar 06
Lead Acid Batteries G8MNY Jun 05
NISSAN Generator GL600 info G8MNY Mar 06
Recovering OLD NICAD/NMHI Cells G8MNY Feb 04
Simple SCR Regulated Charger G8MNY Mar 06
Car Alternators G8MNY Jun 04
Old Car Dynamos G8MNY Mar 06
Petrol Generators for /P SSB G8MNY Apr 06
Regulating 12v Genny Output G8MNY Jan 06
SIP2300 Gennerator info G8MNY Mar 06
PSUs
12V System Surge protection G8MNY Nov 03
A Common High Current PSU G8MNY Feb 05
Adjusting 78xx/79xx Regulators G8MNY Feb 05
Chopper Regulators G8MNY Oct 05
High AMP Crowbar Protected PSU G8MNY Jun 04
Lab PSU ZR6CPB
Reforming Caps G8MNY Nov 05
Stopping HF Tx/Rx SMPSU QRM G8MNY Mar 06
Switch mode PS Principles G8MNY Mar 06
TEACHING
80m VFO G8MNY Nov 04
AC Theory G8MNY Dec 04
AC 3 Phase Power G8MNY Dec 05
A Quality Crystal Set G8MNY Aug 04
Actual Antenna SWR LZ1LEN
An AF amplifier stage G8MNY Dec 04
Calibrating Frequency G8MNY Mar 06
Coded Othogonal Freq Div Mux G8MNY Mar 06
Comms Noise Squelch IC G8MNY Jun 05
Darlington & Quasi Darlington G8MNY Dec 04
DC current sources for coax/AF G8MNY Dec 05
dBW & dB Levels G8MNY Oct 04
Dual phase AF AMP explained G8MNY Nov 05
FM Deviation Calibration G8MNY Dec 05
FM Stereo Radio Principles G8MNY Feb 06
HiFi Dynamic Noise Limiter G8MNY Dec 05
Laptop Fluorescent Tube Circuit G8MNY Jan 06
Light Levels G8MNY Mar 04
LM380/TDA2003 IC Audio Amps VE2ACT/G8MNYMar 06
Making ASCII Diagrams G8MNY Jan 06
MW Radio 1st stage G8MNY Dec 03
Odd Resistance Finder G8MNY Jan 06
Reducing Electronic RF QRM G8MNY Mar 05
RF Modules List G8MNY
RF Signal Calculations G8MNY Oct 04
Simple 80m VFO G8MNY Nov 04
Sound Levels, dBA dBB & dBC G8MNY Jan 06
Spectrum Harmonics Demo circuit G8MNY Mar 05
SSB Demo Circuit G8MNY Dec 04
Transistors, SCRs & TRIACs G8MNY Oct 03
Understanding Multipath G8MNY Feb 06
Unijunction Transistor Circuit G8MNY Nov 05
Unit Madness G8MNY FEb 06
Wire Conversion table HB9ABX Dec 05
Xerox Principles G8MNY Dec 04
Yet More IF Filters G3YRH Dec 02
Y Extended ASCII Graphics G8MNY Feb 06
TESTGEAR
A 2 Tone AF Test Osc Design G8MNY Jun 04
AKD's VHF/UHF Wavemeter WA1 G8MNY May 05
A Versatile Pulse Tester G8MNY Feb 05
Coax Tester G3YRH Dec 02
Logic Probe G8MNY Nov 04
Mains Peak/RMS/Mean Meter G8MNY Dec 04
Measuring 1 of 3 Rs G8MNY Mar 06
Meter Damping & Speed Up Circuit G8MNY Jan 06
Off air lock for ref osc. G8MNY Jun 04
Piston Absorption Wavemeter G8MNY Mar 06
Portable Appliance Testing G8MNY Aug 05
QRO Dummy Loads G8MNY Apr 05
QRP Power Meter & Dummy Load G8MNY Dec 03
QRP SWR Bridge G8MNY Jan 06
Reaction Timer G8MNY Jun 05
RF Noise Bridge for LF, MF, & HF G8MNY Dec 04
Scope & DMM Calibrator G8MNY Feb 05
Spectrum Analyser Mods 88/89 G8MNY Jan 06
Voltage Indicator Screwdriver G8MNY Sep 04
Watson 'Hunter' Counter Mods G8MNY Apr 06
If you like reading these buls please reply, any comments/updates welcome.
Copyright waved for all my buls, as they are for the benifit for all, please
leave my callsign on the work.
Many of these buls are repeated on club websites eg. www.theskywaves.net or
search on "G8MNY".
Try writing your own buls, make packet radio more interesting! See "Making
ASCII diagrams bul" on how to do it.
If you have problems viewing or printing ASCII Graphics see my "Y Extended
ASCII Graphics bul" for some solutions.
Why Don't U send an interesting bul?
73 de John G8MNY @ GB7CIP
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