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Evening all, does anybody perhaps know if one can get foam surround replacements for the woofers of Harmon/Kardon Go play 2 locally. I think some of the other models use the same size woofer. Think its a 3 inch woofer. Otherwise I will have to get some from Ebay. Regards Jan

This is what I am currently busy with keeping me out if mischief and trouble. ;D I have never heard a Quad current dumping amp but have read a lot of people loves them. There have been a few current dumping designs on DIY audio that I pondered about and when this one came around I pulled the...

Goodday all, It seems TRX Electronics has closed down. Does anybody knows anything about it. I need to order spares from Mouser for a new project. Regards Jan

Bad things happening under the bonnet ! ;D When somebody brings me an amp with some of the cover screws missing or are not the same then you know to expect ugly gremlins. https://liquidaudio.com.au/hall-of-shame/

Just advice that may be relevant. Winter is a better time to buy speakers than summer. If the surrounds are good in winter then they will be good in summer. Bad surrounds gets as stiff and hard as an old whore's heart when it is cold, then you get people that sells them knowing about it. Karma...

I cannot sit idle for long, so decided to build the Whammy HPA for one of the kids.Will see how it goes, but the spares are coming very slow from RS. It's the first time working with a PCB layout like this, buggered it up a bit but it is fixable. I MUST get better glasses and a thinner point for...

With all the stuff being sold, the comments of the seller usually is" this is the best and that is the best that I have heard." Why would you sell stuff that sounds so superbb to you ? :thinking:

Evening all. I am in need of a drive belt for a Sony PS-1150 turntable. Does anybody have one of them for sale ? Specs from the Manual: Diameter-195mm Thickness-0.7mm Width-5mm Periphery lenght-612mm Much appreciated ! Regards Jan

Bought a lot of stuff from an extremely angry divorced woman at a good price.How can one leave your sound when you move out ? It is oldish things, one of them a Sony PS 1150 turntable and a Kenwood KA1400 integrated amp. I don't even own a record to test the turntable. ;D Almost finished the the...

This is a great example of CRC and CLC filters on a power supply. https://www.youtube.com/watch?v=WzwaHO6WPCk

Almost finished building the VU meter drivers, it is ESP project 55 from Rod Eliot. Will test tomorrow, but now it is time for an icecold one ! I have build a much simpler one before using only two transistors, but i'll try this one. ;) ;D

Good day all, Do you guy's perhaps know TRX Electronics in Pretoria. I need a few transistors that has to be genuine. RS only sells them in big quantities. I do not want to buy fake stuff. Much appreciated ! Jan

Good day all, Plse help, what type of glue can one use to for the surround of a speaker to glue it to the basket and for the spider as well ? Much appreciated ! :)

Evening all, Has anyone perhaps build this Class AB amp from Pass, if so was it a happy build ? ;D

This is apparently an oldskool warm sounding contraption that has a pleasing warm sound for music at a social gathering since we can buy relaxing liquid again. It has a capacitor on the output, so if anything goes bad then the speakers would not get demolished. Building for a friend that is...

Good day all, does anybody perhaps have a spare mid for a Tannoy mx4. Will be highly appreciated ! ;)

Nice video explaining the problem of tweeters burning when driven into clipping. ;) https://www.youtube.com/watch?v=lAn4WGny-gE

Evening all, Just before all gets shut down, is there perhaps somebody in Bloem that has a base for a 9 pin noval valve/tube to sell ? RS might be closing too, I need to finish a preamp that I have build. Regards Jan :thinking:

For anybody having trouble with a Nad 3020 to adjust bias. Got a Nad 3020 blowing mains 4A input fuses. Turns out there were a driver on each channel blown. :o Do not know how that happens ! So I replaced all four. Had  2n6553/2n6556 were the originals and replaced them with BD139/140. The bias...

Morning all, I am looking for a 6es8/ecc189 valve, I need it for a preamp that I am building. Does anybody perhaps have one of these nippers that they wish to sell. :) Don't want to import if I can get locally. Regards