Delta Electronics Model OIB-1 Operating Impedance Bridge. For Sale

Delta Electronics Model OIB-1 Operating Impedance Bridge.


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Delta Electronics Model OIB-1 Operating Impedance Bridge. :
$1,170


I am only shipping this to the lower 48 states.
The Model OIB-1 Operating Impedance Bridge measures the operating impedance of antennas, networks, transmission line sections, and the common point of directional antenna systems while they are functioning at operating power levels. Both bridges operate with a through power of up to 5,000 Watts, and thus, provide an impedance measurement of the load while operating in its normal environment with RF power applied. This "operating impedance" cannot be measured by classical impedance bridge methods because the system characteristics are disrupted when the bridge is inserted in the circuit. Since classical design bridges are incapable of handling large amounts of power, they measure the low level impedance which may be different at operating power levels due to coupled impedances or impedance variations with power. The Operating Impedance Bridge applies almost all of the source power to the load thereby minimizing interfering effects from adjacent antennas or from strong signals on nearby frequencies. The OIB-1 Operating Impedance Bridge thus satisfy a critical test equipment requirement of consulting and broadcast station engineers.

Delta Electronics OIB-1 Operating Impedance Bridge

This item came from an estate. The son I bought it from said his dad built radio stations and worked as a radio engineer. It has been stored in an original box that this fits inside. I believe it is the original box it was shipped in. The box however in not in very good condition. The unit itself has very little evidence of use on it. It is missing a black knob on one of the switches. It some how must have been removed or fell off because it was not in the box. It is just cosmetic and can easily be replaced.This unit will probably need to be calibrated.The OIB-1 is still in production and a new unit will cost slightly over $5,000.



Serial:842
Frequency: 0.5-5 MHZ
Model: OIB-1
Tested:12-26-73

I know littleabout this item or how it is used in it's working environment. Due to the age of the item I am starting the sale at $900.00

I will pack this well and insure it as part of the flat rate shipping. I am only shipping this to lower 48 states



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