Pulled from working Bosch Plena Paging Amplifier Equipment (Model: PLN-2AIO120)
Bosch Audio Output Impedance Transformer
Model: OT-120LB/B
Outputs are 8 Ohm and 2x 100V line (high impedance)
To reduce audio power degradation, these transformers change the amplifier output to high impedance (100V lines) capable of driving loudspeakers up to 100m distant from the equipment.
There is also a standard 8 Ohm impedance output
Dimensions: 100mm x 100mm height x 120mm
Four mounting holes in the base
Weight: 2.5Kg
I cannot locate a schematic for this equipment, Bosch seems to keep this information very much to themselves, which means I cannot easily identify winding parameters on both the primary and secondary of this transformer.
Testing performed as outlined in the description.
Used item, non returnable
