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  1. steven2

    741, TL071, LF351, NE531, TL061, TL081 IC tester

    :) a testor like this dose help reduce the time in fault finding, and if your hevily into scroungeing second hand parts from old electronic junk. it is usefull to know what still works and what dosent work, especially ,if you have the sometimes messy job at removeing these from the board, if...
  2. steven2

    Capacitors Codes

    :) :) i hope this helps. ceramic capacitor marked 104k, 63, and under it, y5p 104=100,000pf=100nf=0.1uf k= +- 10% tollerance. 63 is for 63 volts. y= - 30 degrees celcious, p= +- 10% stability. ceramic capacitors, with non -linear tempiture coeficients, sometimes use a 3 digit code to...
  3. steven2

    Soldering in Space Station!

    ;) cool stuff mixos,
  4. steven2

    Electronic circuit box designs etc

    8) Part 2 :) continued : after you have made your pvc boxing, and filed the the edges down, then it is time to do the panel work. you will need to mark the positions for your switches, and potentiometers, once you have done that , use a potentiometer knob to gauge the correct...
  5. steven2

    Electronic component testers

    :) havent got the eqiupment yet to download or upload images but will try as soon as i get them. thankyou for your reply about my component testers. steven.
  6. steven2

    Locater

    :D hello there i hope this may be of use to you, i dont know how to insert a link but here is something that may be of use to you. http://www.geocities.com/picketfence/street/7775/schematics/trackingtransmitter/tx15trak.html hope this helps you. :D steven.
  7. steven2

    Diodes Diodes and more diodes!

    :D hello there, you are right . and i myself beleave that even junk parts can come in handy , ive had years expierience in dismantleing , electronic junk for parts theres allways something intresting to use, and even high voltage microwave oven diodes are usefull to . even the moter, and...
  8. steven2

    Generators

    :) for a good output generator , ive found microwave oven ,moters to be effective , although the shaft is tight to turn . but with a pair of pliers ,i tried it and little did i know at first that, i was gona get a big shock, so i tested it more ,this moter when rotated sure puts out a good...
  9. steven2

    Electronic circuit box designs etc

    :) hello mp i dont have a digital camera yet to take any photos to upload or download but will do that as soon as possible ,
  10. steven2

    Simple plasma tube experiments

    ;) this simple plasma tube exsperiment ive biult before consists of a few photo flash tubes from the old phased out pocket cameras in australia. now there is 4 tubes but only 2 are from pocket cameras, the other 2 are exenon flash tubes , these 2 were not from any camera ive autopsied, now one...
  11. steven2

    Homemade capacitor holders

    Home made capacitor holders can be made even for microwave oven capacitors useing the same ideas to the homemade circiut project boxes i posted before. first if you want a microwave , oven capacitor holder . Cut a short length of pvc pipe , thin but with a diamerter large enougth to cut down...
  12. steven2

    Electronic circuit box designs etc

    8) Part 1 To make your own circiut boxes, from pvc pipes,allso capacitor holders ,even microwace cap holders etc etc. first you will need to make the corect size base for the size of your circiut. you will need a meter length of thin pvc pipe, do not use thick as it will need to much heat and...
  13. steven2

    transistor replacements

    thanks for that info .steven
  14. steven2

    circuits/projects/experiments

    being only new to this .anyone intrested in my projects , circiuts, ideas and metalic discharge globes can email me [email protected] include your email address for reply. i dont have a digital camera yet so i cant upload anything yet for those who are intrested. unitl i get this camera . etc...
  15. steven2

    transistor replacements

    has anyone any information on the d975 and d965 transistor , and the b174 can type transistor, these were used in some photoflash units from cameras ive dismantled for studying . i know the d975 and 65 are japeneese made but i have no info on them niether can i find any. no one can help me as...
  16. steven2

    Homemade metalic discharge globes

    ;) These are simple to make for high voltage arcs from circiuts like high voltage ignition coil drivers . well the high voltage arcs from the coils, ive designed 2 so far and first, i cut 2 = lengths of pvc pipe with a diameter enougth to house the metal part of a house hold light globe. Then...
  17. steven2

    Transistor tester

    there is a simple transister tester i biult from a kit as handy as it is as a handy dandy peace of test gear , ive decided to biuld some myself , i have the decade counter tester, 4001 ic tester, 4011 ic tester, 555 and 556 ic tester and scr tester and reverse mode transformer tester . and...
  18. steven2

    Keithley Electrometer 610B

    could be handy as a ufo detector . :-\
  19. steven2

    Capacitane switch

    if you do like to try an alternative to the metal float of a feul system sender unit from a car feul tank modified to use as a water level indicater scratch the metal float and try plastic anything like but bigger than a ping pong ball would be a good replacrement for the metal float ...
  20. steven2

    Capacitane switch

    :) if your looking for a way to measure water levels you might want to try useing a small clean modified car feul level sender unit from a cars feul tank if it has an arm with float on it just varnish that tank and arm unit ., the rest you can use , just wire what ever circiut you have to...
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