rollz-5

Rollz-5 Modification – Added 3-Rolls

When I built the Meng Qi Rollz-5 PC board, among the many modifications I made was to simplify the rolls oscillators by making them all just two-transistor circuits, i.e. ‘2-rolls’.  … Read More

Rollz 5 patched running

Rollz-5 Completed

Here’s the assembled Rollz-5 project! The whole assembly can operate outside of its box.  Here it is being tested.  To the right you can see the power inlet, ground jack, … Read More

Rollz-5 Assembly Progress

The Meng Qi Rollz-5 PC board project in mid-assembly stage. The image above shows the PC board mounted behind a clear plexiglass panel that holds pots, jacks, switches, etc., sitting … Read More

Rollz-5 Schematics

This is the Rollz-5+ PC Board by Meng Qi.  The circuits follow fairly closely the original paper circuits, designed by Peter Blasser.  I am building it with modifications of my … Read More