Hacker Public Radio

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Sound quality, ease of use, comfort, battery life, price



https://themusicozy.com/products/headband/index.html
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HPR and Glasses





HPR community members are nerds



We know from movies that nerds wear glasses



We can conclude that HPR community members wear glasses





Cleaning Background





I have very oily skin and am constantly smudging my glasses



All lenses wipes are too small.



I accidentally touch the lenses with my fingers when I am trying to clean them And smudge them up again



I heard an eye doctor say, the best way to clean glasses is with dish soap and dry with a microfiber cloth



I tried this method It is a great solution because you wash glasses and fingers tips at the same time





Cleaning Method





Hand soap is OK to use on glasses.



get the soap on you fingertips



Then hold your glasses one of the lenses



Use your thumb and finger tips to clean the glasses



the soap removes the excess oil from your fingertips



no smudges when you dry with the microfiber cloth





Progressives





With regular progressives the top of the lenses is for distance vision and the bottom of the lenses is for up close vision



There is a zone in the middle for medium distance, but it is very narrow



Using a computer at work I kept having to move my head up and down to find the best position for working.



Computer Glasses have more space for intermediate distances



From
https://iotlenses.com/blog/eight-types-of-progressive-lenses.html






Computer progressive lenses, also known as occupational designs or enhanced readers, are optimized for intermediate and near vision, making them ideal for tasks like prolonged computer work or activities at mid-range distance




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Background



This episode describes the contents of an old fishing tackle box I got as a birthday present very many years ago. I used it over the years to gather a pile of mostly useless electronic components and junk.



I came across it recently when we were doing a clear out. Mrs X wanted to throw it out. I had a lot of sentimental value due to the long time I’ve had it. I am a bit of a hoarder and it took a bit of persuasion on my part to be able to keep it especially since I could not think of a single use for any of the contents!







I’ve not had time to add links against all the items. Hopefully I’ve managed to add links to most of the more unusual items. Apologies if I’ve missed any.









Contents of Box













Top row left to right, back to front







Compartment 1





Stereo Jack plug & socket




Double pole double throw (2-way) switch





12V dc relay from RS




3 legged semiconductor (voltage regulator?)







Compartment 2



Multiple fuses mostly for cars







Compartment 3



Small silica jelly pouch





Micro Switch






Reed switches (Not reed relays as I call them in my show)








Compartment 4



Potentiometers, Rheostat, variable resistors
https://en.wikipedia.org/wiki/Potentiometer




Control knobs







Compartment 5



Large selection of miniature panel mounted toggle switches
https://en.wikipedia.org/wiki/Switch#Toggle_switch








Compartment 6



Two crocodile clips
https://en.wikipedia.org/wiki/Crocodile_clip




Half of a Hi Fi speaker plug
https://en.wikipedia.org/wiki/File:Speaker_din_male_and_female.jpg




Washer







Compartment 7



Mostly chocolate block connectors
https://en.wikipedia.org/wiki/File:Leuchterklemme_75dpi.jpg




Small selection of glass cartridge Fuses



Single 13 Amp mains fuse for UK plug



Assortment of soldering iron tips



Crocodile clip



Air adapter for foot pump for blowing up an air bed or similar



Spare nozzle for a de-soldering tool. Made from PTFE
https://en.wikipedia.org/wiki/Desoldering#/media/File:Vacuum_plunge.jpg






https://en.wikipedia.org/wiki/Polytetrafluoroethylene




Ferrite ring
https://en.wikipedia.org/wiki/Ferrite_bead








Compartment 8



Rubber Grommets and a heatsink











Middle row left to right, back to front







Compartment 1



Large selection of glass cartridge fuses







Compartment 2



Another large selection of glass cartridge fuses



Small selection of diodes, some quite Large
https://en.wikipedia.org/wiki/Diode








Compartment 3



Two multi turn precision variable resistors
https://en.wikipedia.org/wiki/Potentiometer#/media/File:Beckman_Helipot_potentiometer_SA1400A_2007.075.002.jpg




Cheap variable resistor with in built switch







Compartment 4



Bag of multi coloured LED’s (Cheap for Pi add on board)



2 inch 8 ohm speaker







Compartment 5



Panel mounted heavy duty toggle switch, two pole one way







Compartment 6



Light Dependent Resistor (LDR)
https://en.wikipedia.org/wiki/Photoresistor




Large Tricolour LED







Compartment 7



Variable capacitors PCB (Printed Circuit board) mounted



Spare nozzle for de-soldering tool. Made from PTFE



Light Dependent Resistor (LDR)



Panel mounted heavy duty rotary switch, two pole one way



Bag of various fuses



Halogen 12V car headlight bulb



Variable resistor with long plastic spindle, panel mount



Heatsink possibly for heavy duty transistor







Compartment 8



Variable resistor PCB (Printed circuit board) mounted











Bottom row



This is just a big jumble of stuff, listed in no particular order



DC red and black power lead with inbuilt fuse



Small solder-less breadboard for prototyping





https://en.wikipedia.org/wiki/Breadboard




Bag of various plugs & connectors mostly Jack plugs and sockets



Bag of quartz crystals and a components receipt from 1985 I added crystals to an old PMR (Private mobile radio) boot mount radio. Possible a Pye Westminster Radio. I looked but couldn’t find picture of the radio



Several bits of Perfboard or strip board





https://en.wikipedia.org/wiki/Perfboard




1 Watt audio amplifier kit with instructions not built!



D-type serial port mounted to PCB with screw down connections



Bag of resistors
https://en.wikipedia.org/wiki/Resistor




Large bag of LED panel mount holders



Electronic Instruction guide XH79L (Maplin) price 25p



Chocolate block connecting block
https://en.wikipedia.org/wiki/File:Leuchterklemme_75dpi.jpg




Telephone pickup for recording phone calls. (Never worked)
https://www.amazon.co.uk/Black-Telephone-Pickup-Sensitive-Microphone/dp/B000L1OZG8




Multi coloured ribbon cable



Plastic trimming tool screwdriver set.
https://www.amazon.co.uk/C-K-T4857-Precision-Plastic-Trimmer/dp/B000WKIYTW




Panel mounted BNC socket (Baby Neill Constant)





https://en.wikipedia.org/wiki/BNC_connector








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Openreads is a privacy oriented and open source cross-platform app written in Flutter available for Android and iOS for keeping track of your books.

There are four lists provided so you won't get confused:

books you finished,

books you are currently reading,

books you want to read later,

books you didn't finish.

You can use custom tags and filter through them.

A book can be added by:

looking it up in the Open Library database,

scanning its barcode,

adding its details manually.

You can also view some cool statistics!

Links:

Battletech: Mercenary's Star by William H. Keith


Permaculture for the Rest of Us by Jenni Blackmore


Piranesi by Susanna Clarke


Battletech: The Price of Glory by William H. Keith


The Urban Homestead by Kelly Coyne


Battletech: The Sword and the Dagger by Ardath Mayhar


Battletch: Warrior En Garde by Michal A. Stackpole


Sisterhood of Dune by Brian Herbert and Kevin J. Anderson

Fundamentals of the Wudang Sword Method by Scott M. Rodell


Battletech: Warrior Riposte by Michal A. Stackpole


The Cardio Code by Kenneth Jay


Mentats of Dune by Brian Herbert and Kevin J. Anderson


How to Grow More Vegtables by John Jeavons

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From https://en.wikipedia.org/wiki/Simon_(game)




Simon is an electronic game of short-term memory skill invented by Ralph H. Baer and Howard J. Morrison, working for toy design firm Marvin Glass and Associates, with software programming by Lenny Cope. The device creates a series of tones and lights and requires a user to repeat the sequence. If the user succeeds, the series becomes progressively longer and more complex. Once the user fails or the time limit runs out, the game is over. The original version was manufactured and distributed by Milton Bradley and later by Hasbro after it took over Milton Bradley. Much of the assembly language code was written by Charles Kapps, who taught computer science at Temple University and also wrote one of the first books on the theory of computer programming. Simon was launched in 1978 at Studio 54 in New York City and was an immediate success, becoming a pop culture symbol of the 1970s and 1980s












































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