Tag Archives: signal

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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Expensive Digital Cables = Baloney, Bunk, Bollocks, Snake Oil…

I have often wondered why companies make very expensive cables for digital signal interconnections. A digital signal, put simply, is a 5V pulse for a ‘1’ digit and 0V for a ‘0’ digit. For modern computers, the data rates are … 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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Amp Unit Topography

I’ve probably said this before; everything I do on this project affects everything else. Something needs working out which can only be done if something else is worked out which can only be done when something else… And so it … Continue reading

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Earthing System for Hi-Fi

The earthing for a mains powered Hi-Fi system is pretty straight forward, so long as you keep the signal currents away from the heavy currents placed on the power supplies and don’t introduce any loops etc. The earthing for the … Continue reading

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