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  1. SparkyCal

    Wire

    Can anyone recommend what type of wire to use for wiring components using solder on a circuit board. As you know, some wiring is very tight and delicate, so I am looking for something that is very thin and easy to use. Thank you. I plan to order it from Amazon
  2. SparkyCal

    Transistors

    I have studied how transistors work as a switch or amplifier. Although I have not mastered it, I am getting here. I have a transistor related question. I bought two transistor assortment kits. One kit has 10 different types of transistors. They are: BC327 BC337 BC517. BC547. BC548. BC549...
  3. SparkyCal

    Why is this Happening to Me?

    This keeps on happening to me. I put together a circuit on a breadboard. I get it to work. I then try soldering it on a permanent board. Doesn't work. I am sure I screwed up along the way, and I know you can't help me as I have provided zero specifics, but my question is more general. Is...
  4. SparkyCal

    Picture to Circuit Board coding

    Sorry- I did not realize that providing a description and not a picture was causing so much angst. Here is the board I was referring to in this thread, https://www.electronicspoint.com/forums/threads/circuit-board-coding.292865/ Apologies if anyone got upset.
  5. SparkyCal

    Restore/Repair and old Radio

    I have a vintage radio that has really nice and rich sound. It had AM. FM SW and another band that I am not sure of. Its make is NordMende FTZ-PRUF-NR. U 106 The radio works, but there is a lot of noise coming from the sliders and buttons on the front. For example, if I increase the volume...
  6. SparkyCal

    Circuit Board coding

    I have just started using the green circuit boards (the ones with the holds and solder rings). I notice that there is lettering (the alphabet) printed alongside one edge of the board. When i flip the board, there is also the alphabet, but it is in reverse order from the other side of the board...
  7. SparkyCal

    Searching for Solder

    Based on an article that Bertus kindly referred me to, I am looking to buy SN 60 solder at .30 in size. I looked on Amazon but there are too many choices and it’s hard to understand the specs. Can someone recommend a roll? Preferably one that can be found on Amazon? thank you
  8. SparkyCal

    Basic Question

    This is the kind of board I am using. Can anyone tell me the purpose of the circled item (those connectors), and how I would go about using them in a circuit? Thank-you
  9. SparkyCal

    Technique Question

    Sorry for all the questions, but I am truly a newbie and am getting a lot out of this new hobby. The people here have been great! So here's another: I am working with the 555IC. The project requires me to connect pins 98 and 2. and pins 2 and 6. I have gone beyond the breadboard stage and...
  10. SparkyCal

    Frustrated

    I find this incredibly frustrating. I am building all these circuits from the internet, and they rarely work. I don't know what I am doing wrong. This is a good example. In this circuit, the guy explains it very thoroughly, and takes the time to show exactly how to make the connections. I did...
  11. SparkyCal

    555 Circuit

    Does anyone know of a simple 555timer ic circuit that will make a 12 volt led strip blink. Someone suggested I go this route, and now that my ic chip has arrived, I am looking for a circuit that will do the job. Any advice would be appreciated. Thank-you
  12. SparkyCal

    Understanding my mysterious power supply

    I am not sure how to even ask this question, but here it goes. I have a digital power supply. It's this one: https://www.amazon.ca/gp/product/B07K7DQZZW/ref=ppx_yo_dt_b_asin_image_o06_s00?ie=UTF8&psc=1 Dialong in the amount of voltage I want, is pretty styaright forward. However, i am not...
  13. SparkyCal

    Another Newbie question about Power supplies

    I have a power supply that regulates Voltage and Current. If I wanted it to emulate the current produced by a 9 Volt battery, can i use the Course and Fine current control knobs to achieve this? If so, what current would i dial in, to replicate the 9 volt battery? The power supply measures...
  14. SparkyCal

    Substituting a Capacitor

    I am building a circuit that requires a 470 nf capacitor. I don't have one. I do have a box of capacitors that has: 100 UF. 470UF 47UF 220UF 10UF 22UF with varying voltages. These are the cilinder type of capacitors that have a - and + polalrity. I alos have a small bag of mixed capacitors...
  15. SparkyCal

    Need help understanding this circuit

    I am hoping you can assist with my interpretation of the circuit I have linked to below. More specifically, I am building the circuit found at at 8:00 mark in the video (it is called the Sound Generator) Here are my questions. 1. It looks as though he is soldering the first 4 pins on the IC555...
  16. SparkyCal

    General Advice on How to Learn Best

    I am a newbie and have been roaming between trying projects as demonstrated on Youtube, using a breadboard, doing the odd Adriuno project and trying to code, getting tips from this forum, and reading some theory (Ohms law etc). What I am finding however, is that I can usually follow a circuit...
  17. SparkyCal

    Progress

    Well folks. Thanks to you and my blind determination, I managed to build the circuit below. The red and green LEDs alternate being lit, each second. I have provided pictures and a link to the schematic...
  18. SparkyCal

    Circuit Soldering question

    Today I began experimenting with taking my ideas off the breadboard and putting them on a regular circuit board. I am working with non printed boards, so my question is this. To connect components to one another underneath the board, how do you do that? Is it by running solder somehow? Is it...
  19. SparkyCal

    Parts needed?

    I have a friend whose son has this really bad habit of running his finger horizontally across his face just above the lip, where a moustache would sit. It is so bad, that area is always red raw. Are there a couple of components that can work together, one as a wrist band and other clipped to...
  20. SparkyCal

    Stupid question about Resistors

    When using a resistor, does it matter if the which direction you out it in. Does the band that shows the threshold, have to face a certain way?
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