From the immortal pen of Ben Duncan comes the penultimate part of this epic reference work.

Phil Walsh solves all your lead connection problems at once with his handy multi-way junction box. What a clever boy he is!

Switched, single rail

Designer Paul Williams discusses the construction of a simple breath controller for just about any electric or electronic instrument.

Valve Surgery — Repairing Tube Instrument Amplifiers

Valve Surgery explained

The importance of impedance matching at line levels is widely misunderstood. This article attempts to clarify the situation.

The Taming of the Juice

Mains Safety - the Taming of the Juice!

Part 4: Testing, Testing

Tim Orr on how to test your MIDI Controlled Sampler once you've put it together: tips and diagrams aplenty.

Transistor Power Amplifier Surgery

TLA Mini Amp

Control Room

Ben Duncan goes on at length...

how they work

A compact, well-specified amplifier suitable for studio monitoring and small PA applications.

Effectscheck

There is nothing like a Dane, as Dave Burrluck found

Ben Duncan dons his oil filled gumboots and stands on a pile of dry newspaper to give us an in depth report on this popular power amplifier.

Software writer Jim Grant and hardware designer Tim Orr begin our two-part coverage of a new interface that can connect an MCS1 to a BBC Micro using non-MIDI codes