Hobby Projects - Insulation tester, LED Circuits, Meters.

Friday, October 12, 2018

Surgical Tools useful for Manufacturing

Small Boards, SMT circuits and hybrid electronics need special tools. The soldering and handling require some tools and custom jigs which can be custom designed. 

Some product are mass produced, some tools for managing and working on Tiny PCB's and parts may not be available in the market at an affordable price.

Electronic Product Production Manufacturing

So affordable solution can be created, the jigs are supplemented by surgical tools. These are the Clips and Tweezers that a doctor uses when he conducts an operation.

Surgical Tools useful for Manufacturing

Let use see one here an Hemostat Clamp and other tools at P J Tool and Supply

Call it Forceps, Tweezers or Pliers. These tools, both the bent/arched/curved one and straight are useful.

When you go to a Surgical Supplies Store, Buy some Filter Paper, capillary tubes and a spirit lamp as well. These can find a lot of good use in the ultimate quest for the God Particle. Beat the Swiss to it.

Wednesday, October 10, 2018

VK5JST Amateur Radio Ideas with Photos

The new Ham Project Pages are VHF/HF Aerial Analyser, A 600MHz Frequency Counter.  Then there is a an ESR Meter for Electrolytic Capacitors.

VK5JST Amateur Radio Ideas with Photos

With a two tone tester, a dummy load and an oscilloscope, a transmitter can be really put through its paces. Two tone testing consists of applying two clean non-harmonically related sine waves of approximately equal amplitude to the audio input of an SSB transmitter.

 A Simple Two Tone Oscillator

The sine waves are typically around 600 - 700Hz and 1800 - 2000Hz i.e. about 300Hz from either end of the audio pass band.

A Simple Two Tone Oscillator

This project was published in the September 2004 issue of the Australian magazine "Amateur Radio".

Other Readworthy Pages
  • Easy PCB's Made With Kitchen Appliances
  • How to Make a Q Meter
  • Making a High Current 13.8 VOLT Supply For SSB Transceivers
  • VK5MM's excellent amateur radio homepage
  • Transformer Construction Details
  • Shortform Method of Designing Power Transformers 
The photos at VK5JST Homepage are very educative and express the idea better than words. - delabs

Thursday, October 04, 2018

Hobby Circuits - Bill Bowden

Bill Bowden's Circuits is one of the oldest Web Reference, it was hosted by CompuServe homepages and later moved to his own domain website.

A small collection of electronic circuits for the hobbyist or student. Site includes over 100 circuit diagrams, links to related sites, commercial kits and projects, newsgroups and educational areas.

Hobby Circuits - Bill Bowden

Most of the circuits can be built with common components available from Radio Shack or salvaged from scrap electronic equipment.......

Hobby Circuits - Bill Bowden

Some of the Highlights in this website
  • 32.768 KHz Oscillator Using A Common Watch Crystal
  • 40 LED Bicycle Light (555 Timer - 6 volt)
  • Descrete LED fading circuit using 5 transistors
  • Mechanical Wall Clock Quartz Synchronizer
  • Neodymium Magnet Single Pole Motor
  • Variable Voltage and Current Power Supply
  • Micro Power AM Broadcast Transmitter

Interesting DIY Projects

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