1 Watt Mini Amp
Here’s a nice little solid state amp for headphone use or a small 4Ω speaker. Good candidate for a bench top amp for testing purposes. You can board mount the pot and it will fit in a 1590A just fine.
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Gem Toaster amp
Don’t know if you enjoy occasional story or not, but here one goes anyway. A friend at work was visiting his parents during easter holidays. His father is quite handy building stuff and while he had joined a local combo of fiddlers. He built himself a mandolin which was truly beautiful workmanship. Being handy as … Read more
Run Off Groove Ruby
Got a request for a headphone amp, “for those of us who hit their peak inspiration when everyone’s asleep.” Being guilty myself of waking up my 1 year old son with a Peavey Classic 50 with the volume only at 2, I thought this was an excellent idea. So here’s ROG’s Ruby–a 386-based amplifier that can … Read more
Ruby Tuby
Request. This is based around the Runoffgroove LM386 Ruby, but with an IC preamp, into a 12AX7 section, and then into the LM386-N3 power section. Sounds pretty good in the clips which you can hear at: http://www.sophtamps.ca/mambo/index.php?option=com_content&task=view&id=28&Itemid=39 This needs a 12VDC supply, so if you’re using an unregulated one like the one mentioned in the … Read more
Tiny Giant Amp
Requested by a few people on the forum, this is a mini amp circuit by Taylor Livingston with a bit more ooomph than the others on here, giving 20 watts into a 4 ohm speaker, or 12 watts into an 8 ohm. Designed to run off a laptop power supply which I’m sure we all … Read more
MXR Headphone Amp
Not a lot of info around, but this one is apparently simple little box that allows you to play at nighttime – without disturbing the missus. Seemed like a quick and painless schematic, but took me a few hours to finish… Sort-of-requested by PaulR. 🙂 I think i won’t be posting anything more today. 😀
Noisy Cricket MkII
Runoffgroove and Beavis Audio have been great resources for the DIY audio community for a long time now, offering projects and guidance which has helped many people over the years, me included. This is Dano’s take on a ROG project, a nifty little 0.5W amp that has a lot of fans out there, but with … Read more
