Following on from Atari Punk Build here is a minimalistic but versatile design of a dual timer, pulse generator.
It has been derived from an even simpler APC design, which has the astable duplicated and provides outputs from both of the astables, as well as ramp outputs for each.
In addition it also has the ability to add CV inputs to both of the astables, or to use a jumper to link both CV inputs to their own 10 nF capacitor to ground.
Continue reading Dual Timer Build
Following on from Atari Punx…, here is a minimalistic but versatile design of the Atari Punk Console (APC).
It has been derived from an even simpler APC design, but has outputs from both the astable and the monostable, as well as ramp outputs for each.
In addition it also has the ability to add CV inputs to both the astable and monostable, or to use a jumper to link both CV inputs to their own 10 nF capacitor to ground.
Continue reading Atari Punk Build
Following on from Three Fives on veroboard… I thought that I’d try to make a Atari Punk Console, see Atari Punx…, using two of my hacked veroboard copies, just to see if it will work.
Continue reading APC vs ThreeFives
Following on from Ha Ha Ha… 555 fun, after watching Dave’s video on the Three Fives kits by Mad Scientist, EEVblog #555 – 555 Timer Kit, I set about making a veroboard design. After a few hours I’d finally come up with a design that fits perfectly on 24T x 37H veroboard (see Veroboard).
The transistors 2N3904 and 2N3906 are £0.99 for 100 pieces of each:
or for $0.99
Even cheaper on AliExpress…
Continue reading Three Fives on veroboard
Today I realised that I didn’t have any 555 timer ICs, which was a bit of an oversight, seeing as I need a couple for LFOs. So I ordered 100 for £2.40, 100PCS NE555P NE555 DIP-8 SINGLE BIPOLAR TIMERS IC factory price, what a bargain..! As I had over ordered, as usual, I thought that I had better find something to do with them…
Continue reading Ha Ha Ha… 555 fun
Following on from 555 Noisemusick kit, and Make two PDFs from Eagle two sided PCB, here’s how to make the PDF from the
.brd file. I used the version 3 EagleCAD files.
Continue reading Making a 555 NoiseMusick PCB
Just for the hell of it, I wondered if it was possible to substitute the 555 timers in an Atari Punk Console (APC) with some other component, or components.
After seeing some Schmitt-trigger inverters (CD40106) used in oscillator circuits, see Swingers, I thought that I would come up with an alternative design.
Continue reading Messrs. Schmitt, Trigger and APC (and other stories)