Welcome. I wanted to provide stripboard layouts I've made to help people new to electronics and even the more experienced get into different aspects of electronics.
quite a simple project, during the Covid-19 coronavirus outbreak, one of the pieces of advice we've been given is to wash our hands for 20 seconds. so here's a timer circuit to help you do that.
"sw" is a push-to-make momentary switch, once you press the button, the LED illuminates for about 25 seconds (I added a few seconds to the timer to allow time to put soap on your hands). then just wash your hands till the LED goes off.
pretty good way to make sure your kids are washing their hands for long enough.
I haven't done stripboard construction for a long time, truth is I've been busy with my engineering work, my bands and my mixing work to sit down and do stripboards but I've been doing PCB layouts for little projects and I thought I might aswell post them here
first of all is this little daughter-board for your guitar fx builds that will change a dual colour LED from red to green depending on the switch state; so you can use it as some kind of channel indicator or simply just have a LED to say whether the pedal is engaged or not
here is a link to the rar of the .PDF files (the only way I can seem to get boards to print at the right size) http://www.mediafire.com/file/aszhtwj0vd9xcc0/Stomp.rar/file
I went to the shop yesterday hoping to buy 2 Amptweaker Defizzerators for a recording session but of course; they only had 1, so I bought 1 and reverse engineered it. it's a passive circuit so you get a bit of loss and I may work on a buffered version at a later date but for now;
enjoy.
I used to make this pedal a lot and sell them on eBay so I thought I'd revisit it as it seems that I sold the one I made for myself too.
Anyway this is a pretty cool effect, it has a lot more drive than a standard treble booster and it layers up really nicely.
this is the 3rd guitar effect in the "wizard" collection.
As anyone who has followed this site for long enough will know, I always make my pedals very minimal when it comes to controls but if anyone does add to this circuit I'd love to see what you've done.
I came across this interesting little thing so I thought I would make a clone of it.
it's a maxon treble booster.
they also did one called the power booster and as far as I can see the only differences between that and this is that the power booster has 2 470n capacitors in place of the 2.2n capacitors.
when doing the admin part of this site,nothing infuriates me more than having a company trying to advertise their snakeoil products in the comments section.
I often get comments where someone has copied a bit of the text from my blog post and then shoved a link to some crappy product after it and usually I just delete it but given the fact that Batteriser has been so underhanded and dishonest about everything they do and claim - I thought I would call this one out.
Dave Jones from the EEVblog has debunked their product in just about every way imaginable and they've done some hilarious reply videos to him where some "engineer" is sat at a table with an oscilloscope hooked up to its own 1Khz reference/cal signal (with very badly compensated probes), some wires and boards and a suspiciously new and cheap looking soldering iron; explaining why Dave is wrong. then, when that failed they just paid people to downvote his videos.
so Batteriser, do not advertise your shitty, useless products on my site.
I thought this would be a good project to keep around to see if my digital multimeter has drifted out of calibration.
I power it from a normal bench power supply but it would probably be better if you used 2 9v batteries in series.
The LED on it displays when over 100mA is being drawn from it - basically if the LED is lit disconnect it or things will be getting very hot!
I tested it in free air with open windows over 2 hours and it was very stable so I can rely on it.
Linear Tech do a few different drop references for this IC
the 2 I've tried are the 10 volt reference and the 5 volt reference
the part numbers are
10 volt reference; LT1021BCN8-10
5 volt reference; LT1021CCN8-5
it stayed at 10.0006 for over 2 hours - the least significant digit moved around but that's 10's of uVolts!
I built this as a rough frequency meter to make sure a bunch of oscillators were oscillating in the right ballpark frequency.
it uses the lovely 555 timer IC.
it responds best to squarewave signals (maybe triangle too, I forgot to test it with triangle waves)
