Completed a new amplifier project this week.  I found a few mini wedge speaker boxes in storage and thought they would make good enclosure for a portable amplifier. This is a 15 watt amp with tone controls, dual inputs, and it’s packaged in a extremely rugged and travel worthy box.

The mini wedge amp, ready to rock.

I’m currently building a couple more of these with the extra boxes I have.  If you’re interested in owning one of these drop me a line and let me know.

The control panel close up

More details about this amplifier

Found this Muson toy Synthesizer in the storage shed. Fired it up and it is in proper working order. Unfortunately it’s missing one of the sequencer plugs and currently only plays 9 of the 10 notes. This prompted me to open it up and try to determine the resistor value of the missing plug.

The 1978 Muson Synth toy. Perfect working condition, but missing one of the sequencer step plugs.

I poked around and found several interesting bends so I’ve decided to build a new custom case for this. I’m currently in process of removing all the control components that are mounted directly to the board and will move them to a new control panel.

Rewiring the controls and probing for bends.

More images here.
More to come…

Dragged these out of the attic a couple weeks ago and have just tested them. Unfortunately, they are DOA. I’ll see if I can bring them back. Anyone have schematics or any other info on these?

The electronics are complete and I’m finalizing the case construction and control panel layout. Hope to have it making noise within a week. It’s been on hold waiting for components to arrive so I’m looking forward to getting this one playable ASAP.  Check back soon.

Finally getting around to wrapping this up.  A four oscillator noise machine controlled with a joystick.  I had bigger plans for this one, but the control panel is getting out of hand. Looking forward to wrapping it up.  Details to come…