Tag Archives: circuit

Testing Begins

The printed circuit board I used for testing the preamp and power amps is now back on the test bench to be prepared for Frank’s Portable HiFi: Advertisements

Posted in Amplification, Circuit Tests, Construction, Ghetto Blaster / Portable Music Player, Power Amplifier, Power Supplies, Pre Amplifier, Testing | Tagged , , | Leave a comment

PCB Tested and Working

Amplifier PCB tested and working. Continue reading

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KiCad PCBNew Last Lines

I just have a few lines to do for the left hand channel and then I can compare it all to the circuit diagram as a last check and then start on the right channel. Easier said than done, especially … Continue reading

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White Lines to Green Lines

Slowly but surely I am converting all the white lines into green lines. White lines show where things need to be connected to each other, green lines show where they will be physically routed to make that connection. Much more … Continue reading

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The Ripple Effect Continues

The schematic for the Amplifier Board, using the application Kicad, is now finished. It’s a complicated collection of applications, one to layout the circuit, another to layout the PCB, another to create the Gerber files – whatever they are, I’m … Continue reading

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Lorlin Plastic Switches

I really do not like using metal switches for HiFi. Electric currents (including small signals) produce magnetic fields in surrounding metalwork. Even aluminium produces some bizzare effects when a magnetic field is introduced to it – look into this on … Continue reading

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KiCad EDA Software on a Mac using OS X

It is a very good piece of software. It has some strange quirks but once you get used to it, there is a lot of powerful stuff going on. Being totally new to it, I spent a while getting comfortable … Continue reading

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