SOLD: Bob's Devices SKY20 (1:10 / 1:20) Step Up Transformer $650

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kgturner

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Selling my Bob's Devices SKY20 (1:10 / 1:20) Step Up Transformer. I have XLR outputs on my VPI and no longer need this unit. MSRP on this unit is $1375.00.

From Bob's Devices Site:

"Hand Crafted, Moving Coil (MC) Cartridge Step-up Transformer (SUT) built with new CineMag SKY (Blue Version) Transformers and gold plated hardware in a hand polished black powder coated cast-aluminum enclosure. All lettering is laser etched. Included are 2 switches: high/low gain and ground/lift.

Includes premium construction with C&K Brand Silver contact toggle switches, and Deluxe Gold Plated RCA jacks.

The SKY 20 is switchable for 1:10 (20dB) or 1:20 (26dB).

All connections are Resistance soldered using the American Beauty system which avoids heat damage to the delicate insulation on the hair-like wires of the transformers.  Test equipment used by Bob usess very low current to avoid saturating the transformer cores.  This also reduces the burn-in time to about 8-10 hours. You can count on a premier product that is state-of-the-art.

This unit includes a grounding post that can be used to connect your turntable ground and your preamplifier ground.  It also includes a ground "lift" switch.  In all modes, the transformer cases and faraday shield internal to the transformers are connected to the ground screw.  In the "ground" mode, the phono system minus sides (negative sides) are connected to the grounding lug.  This configuration works well for those systems where the turntable ground is connected to the negative leads coming from the phono cartridge or where the negative inputs to the preamp are internally connected to ground.  In the "lift" mode, none of the conductors in the RCA jacks are connected to the case, ground, or shield and there is no electrical connection between channels.  This design allows you much flexibility to mitigate for ground loops regardless of the configuration of your other equipment."

I accept payment via PayPal (add 3% if not using F&F), CashApp, & Zelle.

Kevin T











« Last Edit: 24 Aug 2023, 06:44 pm by kgturner »