Dawg
28-09-2019, 16:17
Here are my LM3875 boards, fully built and ready to put in a chassis. I did build a big bad ass amp based on these but then I got offered some crazy good speakers which needed more power, more on them to follow as they are up for sale soon. So I never really got to hear these but those that have love them, to be fair I have a problem holding onto stuff and i dont even listen to music, but I do like to build....
All soldering done with Cardas silver solder purchased from hifi-collective, I clean all leads with IPA prior to stuffing and wash the PCB's with Safewash on completion, these are the best boards Peter sells, carefully selected high grade parts and I have upgraded the PS caps for the sale because I siliconed them to the case for reasons I cant explain. (aka OCD) Its worth reading a bit if you havnt seen these. https://audiosector.com/lm3875 I also purchased the add on rectifier kit to make my amp dual mono, here is a pic.
26748
2674926750
I should mention that Peter hasnt updated his site for a long time, those hand made gold plated PCB's where superseded by the much better versions I am selling. PCB's on their own with 2200uf instead of 1500uf £70. plus post.
Also for sale.....
2x 300VA transformers from my build, these are quite substantial and allow for a dual mono construction, £45 the pair plus post. https://www.ebay.co.uk/itm/Vigortronix-VTX-146-300-125-300VA-Toroidal-Transformer-230V-Primary-2-x-25V/123881480486?epid=15013254303&hash=item1cd7e96126:g:fQgAAOSwW7ldXSDX.
26751
Also for sale...
Totally against the very ethos of Peters design, a pair of speaker protection circuits, these are stereo but I used 2 to make it completely dual mono. I did a lot of research and I found a lot of posts saying these could not be detected in the signal, worth it if you have very expensive speakers! These are Velleman K4700, they come as a kit but you dont need to build em because I already have, and they have been tested! I will include the instruction book, these have been built for the gain clones. These just need 230v supply. £30 plus post.
26752
https://i.imgur.com/jZwioXub.jpg
alternatively buy the lot for £120 plus post.
All soldering done with Cardas silver solder purchased from hifi-collective, I clean all leads with IPA prior to stuffing and wash the PCB's with Safewash on completion, these are the best boards Peter sells, carefully selected high grade parts and I have upgraded the PS caps for the sale because I siliconed them to the case for reasons I cant explain. (aka OCD) Its worth reading a bit if you havnt seen these. https://audiosector.com/lm3875 I also purchased the add on rectifier kit to make my amp dual mono, here is a pic.
26748
2674926750
I should mention that Peter hasnt updated his site for a long time, those hand made gold plated PCB's where superseded by the much better versions I am selling. PCB's on their own with 2200uf instead of 1500uf £70. plus post.
Also for sale.....
2x 300VA transformers from my build, these are quite substantial and allow for a dual mono construction, £45 the pair plus post. https://www.ebay.co.uk/itm/Vigortronix-VTX-146-300-125-300VA-Toroidal-Transformer-230V-Primary-2-x-25V/123881480486?epid=15013254303&hash=item1cd7e96126:g:fQgAAOSwW7ldXSDX.
26751
Also for sale...
Totally against the very ethos of Peters design, a pair of speaker protection circuits, these are stereo but I used 2 to make it completely dual mono. I did a lot of research and I found a lot of posts saying these could not be detected in the signal, worth it if you have very expensive speakers! These are Velleman K4700, they come as a kit but you dont need to build em because I already have, and they have been tested! I will include the instruction book, these have been built for the gain clones. These just need 230v supply. £30 plus post.
26752
https://i.imgur.com/jZwioXub.jpg
alternatively buy the lot for £120 plus post.