2'70s Sparta broadcast input preamps channel strips withsensitivity switch

  
From the Centurion Mk I or Mk II consoles. Some of these used jumpers to change the input impedances, but this pair has the convenient slide-switch option. Each has a Bourns-type small-body 10k/10k ohm potentiometer mounted, but no wiring is connected.

Wiring leads from the circuit boards ARE present, as you can see. The Sparta type 1069/T-201 transformers are present on the boards.

These two could be considered "partially complete" projects. Steel frames are around 2-15/16" x 12-1/8". Each unit weighs about 1.3 lbs.

I do not have any circuit schematics on hand but it's possible I could track down a copy in the not-too-distant future. See our other listings for more radio, broadcast audio, music stuff. This item is in the category "Musical Instruments & Gear\Pro Audio Equipment\Preamps & Channel Strips".

The seller is "broadcast-vintage" and is located in this country: US. This item can be shipped worldwide.

1. Number of Outputs: 1
2. Preamp Type: Channel Strip
3. Number of Channels: 3
4. Model: Centurion
5. Brand: Sparta