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Folder 852 Division - (500-series Performance)

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pdf 852-220-100 i1 - 500-Series Sets - General Description Popular

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852-220-100_i1_500_Series_Sets_General_Desc_tci_ocr.pdf

852-220-100 i1 - 500-Series Sets - General Description

May 1952.  (Renumbered from AB22.066.1) 500 series design objectives, mechanical, electrical and transmission features, noise crosstalk and sidetone considerations in design and performance. Note: Section 3.01 is incomplete. See AB22.066.1 i1 for the complete text.

pdf 852-220-101 i1 - 500 Series Transmission, A, B, J, K Sets Popular

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852-220-101-i1-500_Series_Transmission_A_B_J_K_Sets_tl.pdf

852-220-101 i1 - 500 Series Transmission, A, B, J, K Sets

May 1952. (Renumbered from AB22.066.2) Electrical characteristics and transmission performance of the 500 and 501 A, B, J and K sets.  Crosstalk and sidetone considerations and effects of longitudinal noise and set unbalance.  (With and without 311A equalizer.)  Circuit description and diagram.

pdf 852-220-102 i2 - 500 Series Transmission C and D Sets - Small-File Popular

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852-220-102-i2-500_Series_Transmission_C_D_Sets_Small-File_tl.pdf

852-220-102 i2 - 500 Series Transmission C and D Sets - Small-File

October 1956.  (Renumbered from AB022.660.3) Electrical characteristics and transmission performance of the 500 and 501 C and D sets.  Crosstalk and sidetone considerations and effects of longitudinal noise and set unbalance.  (Using 425B network with varistors.)  Circuit description and diagram.

pdf 852-220-102 i2 - 500-Series Transmission C and D Sets Popular

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852-220-102-i2-500_Series_Transmission_C_D_sets_tl.pdf

852-220-102 i2 - 500-Series Transmission C and D Sets

October 1956. (Renumbered from AB22.066.3) Electrical characteristics and transmission performance of the 500 and 501 C and D sets.  Crosstalk and sidetone considerations and effects of longitudinal noise and set unbalance.  (Using 425B network with varistors.)  Circuit description and diagram.

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