The Mini-Bus is a compact, expandable and low noise power solution for Buchla systems. Available as a PCB you can build or, direct from toppobrillo, as an assembled board with all PCB mount parts installed. (Some assembly for installation required. see build guide)
- +/- 15V @ 1A; +5V @ up to 1A; +12V
- Supports 200e preset bus
- Noisy / Quiet ground-scheme implemented as per Buchla’s 200e cases
- Low Noise: <5mVpp (2mV RMS) r/n @ 75% load
- Can be used passive or active. Extendable to 8 connects with Bus Xtnder kit
- Easy to source standard footprint DC/DC converter available from several manufacturers
- Accepts Molex or Faston blade style headers
- 2oz copper , lead-free w matte-black mask
- Measures ~165mm x 76mm
- Fits existing hole pattern from various case makers
- Requires external 12V AC/DC brick (see BOM for recommended parts)
Full documentation is available from https://toppobrillo.com/collections/diy/products/buchla-mini-bus-pcb
Boards can be purchased here, or direct from toppobrillo here.
Front side of PCB –
Rear side of PCB –
Example of populated board –
Notes –
- PCBs are supplied bare (other components must be sourced)
- No warrenty is given nor implied