I’ve been putting together a little “lunchbox” case (actually an old DJ mixer flight case) and I needed a headphone amp for it. I had most of the bits needed to make one, so I started looking for schematics. I also knew that Forest Caver has designed a headphone amp, so reached out and he … Read moreHeadphone Amp
This was another PCB/panel from Forest Caver’s analogue voice range; a 3320 based low pass filter. I had to bust out the hot air station to solder the 3320 as it’s a QFN chip. That aside it was a pretty straightforward build – not too many parts. I quickly put it all together and tried … Read more“Bat” LPF
This vactrol low pass gate is another of Forest Caver’s prototypes. As usual I soldered the surface mount parts first. Then added the panel components. I had to kludge the resonance pot because it’s backwards – something to be fixed in a future revision. The vactrol had to be mounted upside down due to the … Read more“Bat” LPG
The boards for this pair of 3340 VCOs were given to me in a trade with the designer, Forest Caver. They’re part of a range he’s designing which I believe he’ll be releasing soon. I had a lot of the parts in stock already as it uses a lot of common components. I soldered all … Read more“Bat” VCOs