About Bob's Devices
I have built hundreds of moving coil step-up transformers and tested more than a dozen of the most popular step up transformers and several step-up pre-amps (head amps) used to match moving coil (MC) Cartridges to phono stage preamps.
Since there are many different types of Moving Coil Cartridge, one size does not fit all. Wiring transformers for moving coil cartridges is a tricky process and my designs use tried and true techniques to eliminate hum and ground loops. I also use very sensitive test equipment to properly evaluate and test each device. Even with properly built devices, careful placement and proper interconnect cables and techniques are needed, but I have taken the guesswork out of wiring these devices yourself. There is more to this than just wiring the inputs and outputs of a transformer to the RCA jacks in a box.
Since there are many different types of Moving Coil Cartridge, one size does not fit all. Wiring transformers for moving coil cartridges is a tricky process and my designs use tried and true techniques to eliminate hum and ground loops. I also use very sensitive test equipment to properly evaluate and test each device. Even with properly built devices, careful placement and proper interconnect cables and techniques are needed, but I have taken the guesswork out of wiring these devices yourself. There is more to this than just wiring the inputs and outputs of a transformer to the RCA jacks in a box.
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