Welcome - Please Read

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.

I verify the layouts before I post them.

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Saturday, 31 May 2014

RIAA Phono Preamp Stripboard Layout

I'll start this off by saying I'm not that keen on record players but last night I dusted off my old Garrard turntable and promptly realized my amplifier doesn't have a phono input which meant no RIAA de-emphasis equalization. Or in other words my records would sound like shit.
So I opened up eBay to buy one - then I remembered that I know how to make things so that's what I did.

I didn't do it for the site specifically but I thought I should share it with you people in case you ever have this problem. I also used top quality parts such as the OPA2134 op-amp - this is the perfect type of application for this part - it is an op-amp designed for the full audio range.

as a side note - read the product reviews for this IC on the texas instruments page - some of them are hilarious - here is one quote "Replace those TLO72 with these and the difference is huge! (extended low end, smooth mid-range airy top end)"

people really like to talk a lot of shite about things that are not there! - this is a very low noise op-amp optimized for the audio frequency range. if it made things sound "extended, smooth and airy" then it would be a poorly designed product. 

Anyway - if you don't want to spend a load of money on a OPA2134 or you want to try it with a cheaper op-amp any audio dual op-amp will do. I tested mine with a RC4558 (cause it was nearer than the OPA2134)

it is powered by a 20 volt supply, though I'm sure it will work at lower voltages.

Thursday, 29 May 2014

1 of 4 Guitar / Instrument Selector Studio Aid Stripboard Veroboard Layout

I personally created this project because I have alot of guitars and I thought it would be nice to be able to select between a few of them in a recording session using a footswitch instead of plugging/unplugging over and over again however I'm sure people will find other uses for it.

What I will say is that it gave me alot of problems when I actually made it because I rushed and cocked up loads of stuff like IC orientations etc. so take your time and double check things!