Allen Avionics VAR640 Variable Video Delay, Composite

BH #ALVAR640 • MFR #VAR640
Allen Avionics
Allen Avionics VAR640 Variable Video Delay, Composite
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Allen Avionics VAR640 Overview

This "in line" video delay utilizes front mounted toggle switches and a fine trimmer to adjust video delay parameters; it is useful in matching video sources with varied cable runs. A video delay will take the place of the mound of coiled coax that some studios use to time equipment.

Toggle Switches

Toggle switches are used to adjust the main timing parameters.


A fine "trimmer" adjustment is available to make small adjustments to the delay signal.

Allen Avionics VAR640 Specs

InputComposite Video, @ 75 ohms, on a BNC connector
OutputComposite Video, @ 75 ohms, with delay, on a BNC connector
Pulse Distortion3%
Delay Range0 to 640 nano-seconds
ControlIncremental toggle switches with a variable trimmer
Power SourceNone
Dimensions2.0625 x 4.6875 x 3.6875"
5.24 x 11.9 x 9.37cm
WeightNot Specified by Manufacturer
Packaging Info
Package Weight1.3 lb
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This divice dont need power supply? Also will ...

This divice dont need power supply? Also will work with 3G-SDI?
Asked by: Otoniel
Thanks for the answer, any solution for 3G-sdi 1080p signal, i need delay 1 line of video coming from ursa mini sdi output to an atomos sumo 19” switcher, and because of the second camera has a wireless trasmiter has a strong delay aprox 6 frames(800ns).
Answered by: Otoniel
Date published: 2021-01-26
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