Monthly Archives: May 2017

Tedious fault finding…

I tried “re-wiring” the outputs on the FreeDSP classic board, the board that worked well but for the total silence in the left channel mids/highs (passively x-overed). The output I thought might be bad works now, but I still don’t … Continue reading

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Main system…

…I got the idea to get the main system up and running today, sort of a test run with the FreeDSP classic. I hooked up the DSP with analog in and used the internal D/A-converters. To power the woofers I … Continue reading

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“main stereo system” slowly getting there

I’m slowly getting to the point where I can test the main system with the FreeDSP, new DAC (s) and two new amps. For now the BCL clone, I guess it’ll be mkIII, will be acting as a preamp. It’s … Continue reading

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DIY USB audio cable

I decided to make my own USB audio cable. The parts I used are: Aucharm 4 lead shielded cable 5u Gold plated connectors Parts(minus heatshrink and sleeve Finished cable As I had less sleeving of the correct dimension then I … Continue reading

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The weather is amazing

But I did manage to do some DIY, I drilled and tapped holes for the TDA7293, 2SC5200 & 2SA1943. So, the heatsinks are done. Waiting for another fan, fan-grilles and some mounting hardware.  Short post today, the sun is calling … Continue reading

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LM317 compatible TPS7A4700 regulator

I got the boards from oshpark today. They look quite nice, I only have bad cellphone pics…but here they are. /Mayday

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LM337 alternative using TPS7A3301

I threw this layout together quickly, maybe too quickly, as it needs to be mounted with the back of the PCB facing “forward” to match the pinout of the LM337. No big deal though, not for me anyway. GND pin … Continue reading

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