Just finished a brand new Mini Remin.

 Mini Remin Technical specifications:

• - 2 oscillators
  
• - Span: 2 and 1/2 octaves approx.
• - Output level (line): 1,8 Vpp approx.
• - Power: 9Vbattery
• - Output: line
• - Commands: zero beat, volume.
• - Raimbow Led indicator.

The two handles maybe add a gentle touch to the Ikea Foodbox...

Distorfrost box: an EF9-based distortion pedal

Many old tubes sleep in my country house, since the old times when my father used to build vacuum-tubes radios in his green days. There are also lots of miniature 7-pin EF95 pentodes, that were used in high-frequency amps.

Now people round the globe is using them for audio applications... so I decided to try out a low-anodic voltage circuit. With small signals you can't drive the valve into the distortion zone, therefore I added a FET stage. I've also inserted a pot that moves the pentode's operating point, but its effect can be noticed only at high distortion levels. 

It works sweet, it's really easy to build – and it does not sound bad at all!

On stage I'm using it with a 'burglar alarm' type lead battery not to have to plug one more "brick" PS.

Steampunk theremin, finished

Brass, iron, wood, and leather: The Steamy Remin ready for playing. Front:

Back:

Clockwork details...

Raimbow LEDs...

The Meter and the special Steampunk logo

A porthole-styled speaker is a great Steampunk addition!

 

Steampunk theremin: the making

Building a Steampunk theremin is a tough challenge, but I could count on some friends' help both for design and manual help. Thanks to Barbara for the styling and to Sergio for woodworking, wiring, plumbing...

We started from a base concept and a few parts:

 

Then we began the work by conditioning a Jeroboam wine bottle's wooden box:

Then uhm, you have to choose the parts's placement.

On the workbench, after drilling, before elctrical wirings...