Electronics as a Hobby portal

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This is the approved revision of this page, as well as being the most recent.

Life Goal – Make it so that “Electronics as a Hobby” is recognized as a valid term, gets wellknown, and becomes the most popular hobby. How the hell can it not be in the modern tech world where everything is run by electronics? Another as useful hobby or type of guy – hands-on mechanic or “golden hands” kind of guy. Life Goal – provide services for both

electronics as a hobby, robotics, amateur and ham radio

electronics textbooks

For electronics:

  • make a website for hobby (small quantity solder, flux, novelty items, tools, and pcb manufacturing) products to solve all problems that I encountered.
  • missing content: make a page on analog multimeters
  • free ebook on required information for electronics hobbyists and technicians (stuff like where to buy stuff, soldering, measuring equipment, software, reference info, cross database for devices/semiconductors, how to read labels lk IC, super clear transistor book, RF design, no math theory, etc)
  • my task consolidate absolutely all knowledge on amateur electronics into a single reference
  • doc diff bw flip flop and latch
  • doc since i have never heard it mentioned: looks like none of profs and book authors ever had destroyed a resistor pot by rotating it to a low value and exceeding power limit. also, they have never burned finders from a hot component, solder heated component, or soldering iron.
  • wtf my circuits do not work, components fail, etc. how do engineers and companies do it. also extremely difficult to select among clones a single part
  • document phototransistor photointerrupter stupidities (no markings for easy reverse damage, no application note, wtf transistor load resistor is extremely low, amplifier and comparator required)
  • e electronics broken down into generic building blocks (fe parallel resistor block, emitter resistor, voltage divider, voltage drop, etc)
  • single buck/boost regulator, database of ones suitable for hobby prototype rework etc devices, as well as single devices easy enough for hobbyists to implement.
  • length of probes: Pomona small is too short, Pomona bigger one is OK or a bit too long
  • solve stupidity of wire ampacity lack of information
  • educational level open source electronics development tools
  • single buck/boost regulator, database of ones suitable for hobby prototype rework etc devices, as well as single devices easy enough for hobbyists to implement.
  • Programmable logic lab on a board. For hobby or educational use. Must have a website, extensive support info, and an active community, must be extremely cheap.
  • length of probes: Pomona small is too short, Pomona bigger one is OK or a bit too long
  • WTF idiotic documentation of digikey optical interrupters
  • doc diff bw flip flop and latch
  • Develop and market the tiniest embedded microprocessor. Count on about 4 (!!!) inputs and a 100kHz operation. for things like patching, hard logic replacement, hobby use, and human interface solutions (replaces things like 555, Toggle logic, etc)
  • my task consolidate absolutely all knowledge on amateur electronics into a single reference

A website on how to connect real world inputs and outputs to digital circuits and microcontrollers

  • “generalize” every sensor category, and include information for people to learn to distinguish between different as well as same electronics.
  • fe, this will allow people to easily substitute or use another parts for microprocessor electronics.
  • an e-book/wiki on every piece of information to be able to interface to all types of electronics and sensors

electronics for hobbyists: what is there to do for a hands-on electronics boys in the era of surface-mount and total integration?

  1. new students/hobby/prototype service
  2. get yourself with PI International for real projects for the third world
  3. real colleges
  4. competitions
  5. home/local manufacturing technology
  6. mod/create projects
  7. great info sharing on products mods and feedback

hobby fpga use:

  • make an online resource for hobby fpga use
  • hobby, low volume, prototyping, product replacement, education
  • open source non-project based software without arcane settings, tools, or options.
  • simplest, cheapest, smallest fpgas used
  • drag and drop and gui compilation only. absolutely no hand coding or compilation options specification
  • open source software, specifications, features, and tools. for example, automatically generate math acceleration for any c program.


  • No product reviews
  • moves all of the different sites to one site
  • software
  • circuits by various authors
  • paid EEs to answer questions
  • grade 8-12, student, beginning EE oriented
  • "complete electronics lab" -- software package + boards + IO

EEs of USA club

  • publishing
  • info
  • force colleges to remove shit courses
  • tells what to do
  • resources
  • ads
  • wanted
  • services

about electronics repairs

  • most common problem for beginners is overthinking the process like digging into the boards without looking at the power supply, or blaming the relatively rugged electronics when a simple switch or mechanical problem is the likely cause, or a case on which the electronics depends on for operation.
  • write online about the actual easy steps to fix computers, electronics, as well as operating systems.

digitizer i need: if not found, make and sell it myself

  • digital io
  • analog io
  • signal generator
  • spectrum analyzer
  • waveform generator
  • dmm (the most important option. if it does not replace a handheld dmm but is yet another instrument, then it is crap)
  • 1/2 channels max. anything more is too expensive and must be a separate module.
  • full open source full feature software suite
  • bandwidth is by application only. fe audio apps should have 200 kHz, etc. other ones like logging (10 kHz), embedded/robotics (100 MHz), etc
  • $200 maximum price. hobbyists and education will never pay something in the $500-2000 range.

problems i encountered with electronics parts suppliers:

  • absolutely no pics in electronics catalogs. as always, when i do not know what i am looking for, it is impossible to find on the Internet
  • absolutely no flux suppliers
  • absolutely no water soluble information, suppliers, and pictures
  • no universally accessible part cross reference databases

PI task: electronics

  • reparse all electronics books, circuits, etc and reorganize them into block circuits instead with comments on specific implementations for that particular function.
  • fe, a self-made metal detector would show a block circuit for one, and then the readers would use a computer or their brain to convert the blocks into discrete components.
  • preserve all old circuits for "how it was/could be done" information, while noting why it is no longer done that way anymore (fe, an almost fully digital metal detector instead of one with 4 transistors)
  • archive all circuits and books.
  • explain why things are not done some particular way any more.
  • maintain groups of people who actively build old circuits and parse old information with things such as tube and few-transistors based circuits.
  • move electronics to block-level thinking with few tweaks to standard blocks to suite a particular application.
  • show evolution of circuits for each minimal task.

practical transistor knowledge ebook (hobby/technician)

  • No math, theory, bloated schematics, pencil/paper, etc
  • how to recognize circuit type at a glance
  • Minimum devices for switching application, amplifier, isolator, generator, etc
  • when to use bijunction and when to use mosfet
  • the only transistor part number you will need
  • software tools
  • simplify all circuits based on transistors by their type + supporting devices, and show how to do that yourself
  • review books (most are a mile wide and an inch deep). But the fail as references if a concept cannot be found in a single mile wide book
  • no emphasis on physical construction or the fact that devices fail, or how to repair electronics
  • how it operates, esp required conditions
  • the only possible uses schematics by type
  • wird uses in circuit explained (lk base tied to emmiter thru a resistor for a two-wire device)
  • RL gotchas and examples from users
  • useable schematics books
  • how to buy transistors
  • explain negative polarity. Also how PNP can be used w neg ground
  • required forward bias

wtf none of the circuits work?

  • Mosfet failed
  • photointerrupter failed
  • 5V regulator failed
  • basic stamp module failed
  • several logic ics failed
  • SR latch equivalent does not toggle LED (defective ic)
  • buffer did not work
  • SR latch toggled LEDs, but fails with mosfet or buffer (because logic high is only 4.5V)


Q: What things can be asked on an interview to an electronics-related position (technician, assembly, etc)?


  • component identification
  • final inspection
  • esd standard
  • certificates
  • blueprint reading – steps, components, diagram
  • term for blueprint steps

External links