Tag Archives: stereo

Construction Starts

Construction of the first Bluetooth Portable HiFi has started.  I am working on the power supply build. The photos above show the banks of power supply capacitors, one for the positive rail and the other for the negative.  They are … Continue reading

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Descriptive Name for Boombox / Ghetto Blaster

I need to think of a name for this first unit I’m making.  Ghetto Blaster has racist connotations so I don’t want to go that route even though everyone knows what it is. I’ve trawled the internet to try and … Continue reading

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Amp Testing & Bias Setting

The amplifier is now being tested and the bias set from the driver stage.  I am using an LM4702B to drive the 2SK1058 / 2SJ162 MOSFET output stage.  These devices will have a bias of 115mA to take them just into … Continue reading

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HiFi Amplifier Earthing / Ground

Don’t let anyone ever tell you it’s easy. In laying out the Kicad component footprints I have started to look at this area again – the phono socket earth ring, how does that connect to the PCB? There are so … Continue reading

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