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1450-TB: Difference between revisions
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The '''General Radio 1450-TB''' is a decade attenuator introduced in 1949 Catalog L and remained available through Catalog 1978. | The '''General Radio 1450-TB''' is a decade attenuator introduced in 1949 Catalog L and remained available through Catalog 1978. | ||
The 1450-TB is part of a series of | The 1450-TB is part of a series of decade attenuators based on the Type [[829-TA]], [[829-TB]], [[829-TC]] "T"-type unbalanced attenuator units. | ||
It contains three of these units to obtain 111 dB of attenuation in 0.1 dB steps at 600 Ω. | It contains three of these units to obtain 111 dB of attenuation in 0.1 dB steps at 600 Ω. | ||
Using the supplied chart | |||
Using the supplied chart, corrections for mismatch of input and or output impedance can be calculated. See below for the rack mounted version 1450-TBR. | |||
==Specifications== | ==Specifications== | ||
* '''Attenuation:''' 111 dB in steps of 0.1 dB | * '''Attenuation:''' 111 dB in steps of 0.1 dB | ||
* '''Input Impedance:''' 600 Ω | * '''Input Impedance:''' 600 Ω | ||
* '''Output Impedance:''' 600 Ω | * '''Output Impedance:''' 600 Ω | ||
* '''Frequency Discrimination:'''Less than ±1% of the indicated value | * '''Frequency Discrimination:''' Less than ±1% of the indicated value at 1 MHz | ||
==Links== | ==Links== | ||
* [[Media:GRwiki Exp 1450-TB 12_1949.pdf|Experimenter describing 1450 Series December 1949]] | * [[Media:GRwiki Exp 1450-TB 12_1949.pdf|Experimenter describing 1450 Series December 1949]] | ||
==Photos== | ==Photos== | ||