Search results

  1. SparkyCal

    Back...sort of...

    Well, I'm back...sort of... I am still not pursuing electronic projects and circuits for the time being. However, I probably will have household type electronics questions along the way, and what better place to ask, than here. I have a very old Phillips antique radio that my dad passed down...
  2. SparkyCal

    Farewell

    I thought I would let you know that I have shelved electronics for now, and have taken down my lab. It's not that I have lost interest. It's more that I am finding that I don't have the time it takes to succeed at it. Also, there is no escaping the fact that not having a formal education in...
  3. SparkyCal

    New Stompbox Project

    So, I have decided to try another guitar pedal project, but first. I have a few questions: I decided I will use the attached schematic as my template. What I mean is that I will use this schematic as my starting point, but I will be making changes to it- hence my questions: I recognize that...
  4. SparkyCal

    The Theremin Stretch

    I decided to try to build this and have it all breadboarded up. https://www.youtube.com/watch?time_continue=819&v=oRhO0MJIl58&feature=emb_logo . The schematic for it is at 6:50 of the video. It is a Theramin- which is a musical gadget of sorts. It makes zany noises when your hand moves toward...
  5. SparkyCal

    Why is it so hard to find ceramic capacitor kits that have a 3.3pF in it?

    Why is it so hard to find ceramic capacitor kits that have a 3.3pF in it
  6. SparkyCal

    Part Replacement in Circuit

    I am trying to build this circuit and gathering all the parts: . The schematic for it is at 6:50 of the video. It is a Theramin- which is a musical gadget of sorts. It makes zany noises when your hand moves toward it. To see Lez Zeppelin use, one, see 6:15 of this...
  7. SparkyCal

    Weird Voltage divider issue

    So, I have been building this same circuit, a number of ways (see circuit here:https://www.electronicspoint.com/forums/threads/a-stretch.293212/ I used a LM741 op amp and it worked. Did the same circuit, this time incorporating an additional resistor as suggested by AudioGuru- and it worked...
  8. SparkyCal

    Recommendation for side cutters

    Can anyone recommend a decent pair of side cutters? Mine is a cheap one and it's already busted. What I mean is the pliers that flush up against a connection, to snip it off. Preferably something I can find on Amazon. Thank-you
  9. SparkyCal

    Can I stack effects

    As many of you know, i have recently built a distortion pedal. The details of that build are here: https://www.electronicspoint.com/forums/threads/a-stretch.293212/ Here is my question: Is it possible to build a delay circuit and add it to the distortion pedal. In other words, a second stage...
  10. SparkyCal

    Taking Requests

    I successfully rebuilt the distortion pedal ala AudioGuru’s revised design and will post samples of how it sounds later. In the interim, I’m taking requests. Do you have a favourite rock riff you want to hear me play? Post it here and I’ll do me best.
  11. SparkyCal

    Unveiling of the pedal

    Finally...thanks to all your help, i have finalized my pedal build and have recorded a sample of wjhat the pedal sounds like. I have the volume down, but the gain up, and the tone control at around 1 o clock. It's not perfect, but it's good for my first attempt. The nexyt time I build this, i...
  12. SparkyCal

    Mistakes You Can Avoid

    Well, in the process of learning electronics, I have made a lot of mistakes. This post is intended for those who are beginners. I am still a beginner myself. I'm not offering any advice on electronics design or circuits, as I am not there yet. But reading these do's and don'ts may save you...
  13. SparkyCal

    Lessons Learned and When the Chips Are Down

    Some of you may know that with the help of this forum, I have finally succeeded in building a guitar overdrive stompbox circuit that was beyond me. That thread is here:https://www.electronicspoint.com/forums/threads/a-stretch.293212/ Here's some of the things that I think I learned, and also a...
  14. SparkyCal

    LED and Switch for circuit

    As some of you know, I have finally suceeded in building a guitar effects box, thanks to all the help I received here :) This is the schematic I used. https://www.electronicspoint.com/forums/attachments/screen-shot-2020-06-22-at-10-21-12-pm-jpg.48602/ I am now in the process of putting it...
  15. SparkyCal

    Need help interpreting something on a schematic

    I wonder if you could help me with a few things on the attached schematic: 1. There is the word "Drive" right below the 150k text. Is he simply saying that a 150K resistor needs to be placed there? I am confused because having that arrow pointing down makes it look like a potentiometer. Can...
  16. SparkyCal

    25 PF Capacitor sub

    A circuit I am building calls for a 25 pF capacitor. There is no polarity shown, so I assume it is a film capacitor. It is a guitar pedal distortion circuit. I don't have 25 pF capacitiors . You'd think with all these kits I bought I'd be able to cobble one up, but I am not sure I can. Does...
  17. SparkyCal

    tinning

    Is it advisesble to tin every connection before you solder? Or is it just an unnecessary step. If there is an advantage, what product would you recommend
  18. SparkyCal

    Your Problem Solving Method

    I am working on circuit that I have built successfully on a breadboard (it's the one in the thread "A Stretch" that you all helped me with. https://www.electronicspoint.com/forums/threads/a-stretch.293212/page-10#post-1801439 I have put it on a PCB but it's not working. However, my question...
  19. SparkyCal

    Resistor codes

    I understand how to decipher resistor codes online or through a chart, but how do you know which end is the first color? In other words, how can you identify color band 1 as opposed to color band 5? Thank-you
  20. SparkyCal

    Reverse Day/Night

    As you know, there are plenty of devices that will turn on lights when it is dark out, and turn them off in the morning. I have a pond however, whose pump I want on in the day, but automatically off at night. Is there a circuit that can do this? Bear in mind that the pump plugs into 120v Thank-you
Top