Here is the schematic for an 8 watt audio power amplifier. This amp can be used as a simple booster, the heart of a more complicated amplifier or used as a guitar amp. It is very small and portable ...

[Blackcorvo] wrote in to tell us how he took a cheap “retro” guitar amplifier and rebuilt it with sub-miniature vacuum tubes. The end result is a tiny portable amplifier that not only looks the part, ...

This is a medium power guitar amplifier is recommended especially for portable amplifier. The amplifier is a combination between a simple integrated audio driver, LM391-80 and a stage of output power ...

If you're lucky, you may find one on eBay for $20,000 or more. However, a number of individuals have reversed engineered these amplifiers. Below is a set of schematics that will allow you you to build ...

In this age of hand-made, boutique gear (not to mention the enforced confinement), many guitarists have taken up soldering irons and built pedals and equipment of their own to scratch a particular ...