levels from +4.8dB to -7.9dB. Power requirements +12V,
-12V. 4U unsupported card with 57 way edge connector.
Parent equipment ME3M/502. Sub-units FL1/532 and FL4/588.
DDMI 9.296(83). DD 1980.
CH1/64A. RD 1978.
CCITT De-emphasis Amplifier. Power requirements 24V, 25mA.
CH1/64A. RD 1978.
Audio Frequency Compander. Printed board containing audio
circuitry which can be externally programmed to either
compress or expand incoming programme. For use with F.M.
radio links. A,B, or C versions may be produced according
to audio bandwidth required, current consumption etc.
Power requirements +9V or :t12 V dc. Supersedes AM6/22.
Peak Programme Meter Amplifier, suitable for use with a
wide range of meters. PCB 80mm x 108mm. DD 1973. DDMI
3.571. DDHB 3.137. EDI.
Stereo PPM Amplifier, used to drive a twin pointer meter
containing circuitry to enable either "A" and "B" or "M"
and "S" signals to be displayed. Printed circuit board.
DD 1974. DDHB 3.154. DDTM 3.617(75). EDI.
Stereo Peak Programme Meter Amplifier. Stereo P.P.M.
amplifier, to drive a twin pointer meter. Displays either
"M" and "S" or "A" and "B" signals. Simplified alignment
and reduced drift. Printed Circuit fitting on meter
3.744(85). EDI 10525(1)OCT 85. DD 1984. DDHB 3.315(85).
LF. Amplifier and Discriminator for use in VHF Stereo
Receiver RC5M/6. As AM21/1 but with 75Q buffered 2nd I.F.
1.6MHz 2nd I.F. CH1/26A. DD 1977. DDMI 5.328(77).
LF. Amplifier used in RC4M/7, contains discriminator.
PCB 75mm x l45mm. DD 1977.
I.F. Amplifier. Contains 1st and 2nd I.F. amplifiers and
pulse counting discriminator used in RC4M/8. PCB
approximately 75mm x l45mm (fits across BMM chassis). DD
1977. DDMI 3.344(77).
IF Amplifier. Same as AM21/6 with a reduction in IF
bandwidth to 100kHz. Power requirements t12V. PCB 175mm x
IF Amplifier. Same as AM21/6 with
bandwidth to 50kHz. Power requirements
145mm. Parent equipment RC4M/8D.
reduction in IF
H2V. PCB 75mm x
10.7MHz LF. Amplifier and F.M. Demodulator for F.M.
Stereo Transmissions. Original use with RC5/9B and II