This is a guide on the basics of how to make new parts in Eagle Layout Editor. Open or create a new library file. Click on Symbol (6th icon across from the top) and create a new symbol, giving it a name and clicking ok. You are then presented with a blank area to draw your new...

Some might remember quite a few months back I posted some pics of a DAC board I was working on and also that I had had lots of problems with it not working Well after bighting the bullet and replacing $80aus in DAC chips (for only 2!!!) I have it playing sound *cries of joy* So far I only...

Last night I was bored and thought of the idea of putting a Jung based regulator on something pin compatible that would fit right onto an existing LM78XX regulator, and loaded up Eagle layout editor and after playing around a bit found out that you can squeeze quite a lot onto something very...

I just bought some second-hand C-Pads for use with my MS-2's, from the looks of it i think they are the beta type but I am not 100% sure how to tell Putting them on they fit nice, though there is an uneven distribution of pressure with the top half pushing down a bit more but overall their...

A while back, I posted a thread about some weird problems I’d been having with a few mints I’ve been making, well after having more time to sit down and fiddle with them I’m still no closer to fixing them but I worked out what it happening. So I got a number of mint boards, using all standard...

I got a mint amp here, with your standard component values, ad8620, 2*9v batteries, 470uf 16v pana fc's, 1uf blocking caps, etc. It all works perfectly fine, 0 offset on both channels except for one little annoying thing... with the Panasonic pot between 2&3 o'clock positions and only at...

I been following all the headphone amp designs for the past year and a bit and a lot of people have done some nice work, well I decided that I should have a go at my own from scratch This is done with combinations of other ideas on what works and what doesn’t and putting in what I’ve though...

I’ve built 2 pimeta’s - standard resistors to the schematic, 1 buffer per channel, 24v regulated, all the standard parts basically Now they run happily with ad8620/8610 opamps in them with dc offset of about 2-3mV on each channel, then swapping to opa637/627 there is now about 270-330mV on...