[Simon] wrote in to tell us about a headphone tube amp that he just built. It is based on schematics at diyaudioprojects.com that were actually featured on Hackaday in the past. [Simon’s] design adds ...

There are great presents, and then there are truly awesome presents: this home-built vacuum tube iPod amplifier and speakers falls most definitely into the latter category. Given to Peter Redmer by ...

MAKE refers us to the best use of a Marlboro pack since, well, its intended one. For under $30, you can build your very own amp, complete with input and headphone jacks, right into your old box of ...

I'd like to monitor the amount of power (in watts) going into my speakers. I'm not concerned about over driving them or anything, I'm just curious how much power I'm actually using. I connected a volt ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. In this age of hand-made, boutique gear (not to mention the enforced confinement), many ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. Half a century ago, vacuum tubes were very common in audio ...

We don’t discriminate here. Obviously this amp was made for the use of an iPod but it could also be easily used with any type of audio player using the standard 1/4-inch audio jack. The total cost is ...

December 20, 2009 Add as a preferred source on Google Add as a preferred source on Google If you're looking for a super-cheap way to squeeze some extra performance out of your guitar amp, this simple ...