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Welcome to Bob's Devices

Custom step-up transformers (SUT) for moving coil (MC) cartridges. 

Each SUT is hand-made, one at a time, using point to point wiring and individually tested. 

No circuit boards used.

BREAKING NEWS!  The Blues are Back!

 We have just been informed that David Geren is back at CineMag.  The Models 1131 and 3440AH (yes, the BLUE Logo) will again be produced.  We believe these are the best sounding step up transformers available today. 

  As reviewed in these links

Email your moving coil cartridge and phono preamp make/model and I will provide you, with no obligation, information on what would be the proper step-up for your system.  If you are interested in a custom step up transformer (SUT), I will provide you with a quote for doing so.