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Welcome to Bob's Devices, Inc.

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 are used. Hand Crafted in the USA.

Special Offers

Ortofon Cadenza Bronze

New old stock. Last one!

Ortofon Cadenza Bronze

Regular Price$2,689.00Sale Price$2,295.00

Hana Umami Blue MC Phono Cartridge - Show Demo

Hana Umami Blue MC Phono Cartridge - Show Demo

Regular Price$2,500.00Sale Price$1,995.00

Cardas Myrtle Heart MC Cartridge

New old stock. Last one!

Cardas Myrtle Heart MC Cartridge

Regular Price$3,450.00Sale Price$2,195.00

VPI Prime 21 Turntable - Show Demo

VPI Prime 21 Turntable - Show Demo

Regular Price$5,500.00Sale Price$3,995.00

ADS Speed Controller - Show Demo

ADS Speed Controller - Show Demo

Regular Price$1,265.00Sale Price$995.00

Koetsu Rosewood Standard Phono Cartridge

Koetsu Rosewood Standard Phono Cartridge

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