~v
LIST OF SUB-GROUPS IN R.D. & C.E.
Codes marked "Restricted" can only be used where no other sub-group is
suitable. Codes in italics are not available for new designs~ suggested
alternatives are given where possible.
AMl/----
AM2/----
AM3/--
AM4/---
AMS/----
AM6/----
AM7/----
AM8/----
AM9/----
AMlO/---
AM11/---
AM12/ --
AM13/--
AMl4/---
AMlS/---
AMl6/---
AM1? /-
AMl8/---
AMl9/---
AM20/---
AM2l/---
AM22/---
AM23/---
AM24/--
AM25/---
AP1/--
ATl! ----
AT2/---
AT3/----
AT4/----
BA 1/---
BA2/--
BA 3/--
BA4/-
BA 5/---
BA 6/----
BA?/--
AM AMPLIFIERS
Miscellaneous (Restricted)
Carrier (use AM14)
Detector (use DM)
Distribution
Multi-Purpose
Limiting
Line
Loudspeaker
Microphone
Headphone (previously Monitoring)
Outside Broadcast (code by function)
Photo-Electric (code by function)
~e-Fade (never used)
Radio Frequency
Recording
Reproducing
Servo (code by function)
Stabilising
Non-Linear
Peak Programme
Intermediate Frequency
Response Selection (for audio tone controls)
Matrix
IJri ve (code by function)
Head (never used)
AP APPARATUS
Miscellaneous (code by function)
AT ATTENUATORS
Miscellaneous (Restricted)
Audio Frequency
Video Frequency
Radio Frequency
BA EQUIPPED BAYS
Miscellaneous (code by function)
Amplifier (use AM)
Communications (code by function)
Control (code by function)
Jackfield (never used)
Lines Termination (code by function)
Monitor (use MN)

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