Cammate slip ring for crane/jib head, Stanton, Jimmy Jib or other

Description

For sale Campmate slip ring. I purchased it about two years ago with idea of retrofitting our crane head but that never materialized. I think someone else may find better use for slip ring.
Seller told me that slip ring is new, I cannot confirm that and listing it's as used. It's in excellent shape though, it may be brand new as well.
Dimensions are:
-Outside barrel diameter: 98.5mm
-Barrel height: 46mm
-Rotating (inner) barrel diameter: 52.4mm
-Rotating barrel height: 61.7mm
It's "dual stage" slip ring with two independent rotating barrels. Inner one consist thin wires routhed through the center of slip ring and 6 larger wires routed through outer barrel.
It's very high quality slip ring with real ball bearings, very light movements, no any parasitic drags.Must have for any serious crane head.
Local pick-up in Seattle (WA) is free. PayPal and all old good payment options are accepted.
Insured shipping in 48 states . International shipping around the world.
I'm not sit behind computer 24/7, but will try to answer questions in timely manner.
Thanks for bidding!
The SP-150 from Mirror Image Teleprompters is ideal for use at meetings, conferences, presentations when you want to project a professional speaking setting.
This is a Restock item that has had its box opened or has been repackaged. It may have minor cosmetic flaws and may have been sold to a customer and returned.
Mirror Image SP-150MP Includes:
2x LCD Monitors
2x Mirrors
2x Housings
2x Poles
2x Glass Beamsplitters
2x Glass Holders
EZ Prompt Software
Hand Controller
2x 25 ft VGA Cables
VGA Distribution Amp
Mirror Image SP-150MP Features:
12.75"x 10" True Beamsplitter mirrors with 60x40 anti-reflectant
Mirrors are vertically adjustable to a height of 6 feet
Monitors are placed on the floor and are protected by metal housing
Housings "nest together" for easy portability
All metal components with a durable powder coat finish
Mirror Image SP-150MP Specifications:
Brightness: 250 NTS
Viewable Size: 15"
Signal Input: XVGA
Scanning Frequency:
Horizontal: 31.5 - 61 KHz
Vertical: 55 - 76 Hz
Video Input Impedance: .7 Volts P-to-P
Input Voltage: 100-240 VAC
Resolution: 1024 x 768
Power Consumption: 21 watts
Input Connector: VGA 15-pin D-Type
Special Controls:
Horizontal/Vertical size
Vertical position
NOTE
: The included prompting software is used to reverse the text. Any third-party software being used must be able to do so as well.