Hello forum members
This is my 1st chip amp construction thread ... LM1875, a little project that has been kicking about for a while. I don't really need to make one, but was attracted by the simple construction that could be achieved ... and for some reason really liked the PCB layout with noise cancelling ideas applied to the track layouts that seems to be a new skill amongst PCB designers .. so will allow the pictures to tell the story
I decided to make my own post instead of high-jacking another members post ...
This is my 1st chip amp construction thread ... LM1875, a little project that has been kicking about for a while. I don't really need to make one, but was attracted by the simple construction that could be achieved ... and for some reason really liked the PCB layout with noise cancelling ideas applied to the track layouts that seems to be a new skill amongst PCB designers .. so will allow the pictures to tell the story
I decided to make my own post instead of high-jacking another members post ...
Jamesfeline, I picked up a few LM 1875 some time ago. Your pcb layout looks good. What is the prototype size of the pcb? Regards,Bill
Hello "HeyBill" the PCB layout is from silicon chip magazine from Australia ... the PCB is out of production but I contacted the magazine Editor to make them again for me .. which they have done .. I ordered 10 boards
With your permission, I would like to scale the pcb attachment and have some made for my use only.
Now the PCBS .. these are made by myself ... these pictures show part assembly of the 2 power amp boards ..
Attachments
Last edited:
Don't you just love the UK and USA special friendship ... I do !!
(sorry politics no offence to others)
(sorry politics no offence to others)
I will post the Dimensions in a mo for you and a link to buy the PCBs if you wish ??
regards
Jamesfeline, dimensions and a link would be great. The special relationship is great. We will get through the current mess soon.
