Radio Design Labs is a manufacturer of electronic components, specializing in audio and video distribution, signal processing, and control systems.

AUDIO SWITCHER UNBALANCED 4X1
MUTING MONITOR AMPLIFIER TWO WATTS
RDL ST-EQ3 3 Band Equalizer - Line Level
RDL SIX-WATT UTILITY AMPLIFIER, FREQUENCY RESPONSE: 35 HZ-20 KHZ, THD: .35 %, INPUT: 10 KOHM, 400 MV (LINE LEVEL), POWER REQUIREMENTS: 24-33 VDC, 350 MA, GROUND REFERENCED, NUMBER OF CHANNELS: 1
CHIME GENERATOR
STEREO PHONO PREAMPLIFIER
DWO MIC DISTRIBUTION AMPLIFIERMIC LEVEL 1X3
GAIN CONTROL AMPLIFIER LINE LEVEL
MIC LEVEL CONTROLLED RELAY 0.5 - 5 SECOND DELAY
4 MIC OR LINE MIXER MIC AND LINE OUTPUT
RDL BALANCED TO UNBALANCED CONVERTER, FREQUENCY RESPONSE: 10 HZ-40 KHZ, THD: .005 %, POWER REQUIREMENTS: 24 VDC, 50 MA, FEATURES: TWO IDENTICAL ACTIVE CHANNELS, INDIVIDUAL GAIN TRIM ADJUSTMENT
HIGH GAIN MIC PREAMP 35-75DB GAIN
STEREO A/V DISTRIBUTOR 1X4 PHONO JACKS
LINE COMBINER UNBALANCED TO BALANCED
UNBALANCED INPUT TRANSFORMER
NOISE GENERATOR WHITE AND PINK NOISE
Power Supply
TX SERIES RACKING SYSTEM 5 MODULES 1U
Audio Divider/combiner Network, 600 Ohm; Product Range: stick-On Std Series; Plug Type: -
VOLTAGE CONTROLLED AMPLIFIER