Radio Design Lab, RDL, Circuit Modules

The ST-SSR1 is part of a group of products in the STICK-ON series from Radio Design Labs. The durable bottom adhesive permits quick, permanent mounting nearly anywhere, or use it with RDL's racking accessories. The ST-SSR1 offers the ...

Radio Design Labs' FP-PA35A is the ideal choice in many applications where multiple 25 V, 70 V or 100 V speakers in a zone need to be powered from a single audio power amplifier.The FP-PA35A features a balanced line level input that may be ...

The TX-LC2 is part of the group of versatile TX series products from Radio Design Labs. The TX series feature the advanced circuitry for which RDL products are known, combined with durable, quality connectors. The ultra-compact TX series ...

The ST-VCA2 is part of the group of versatile STICK-ON products from Radio Design Labs. STICK-ONs feature the advanced circuitry for which RDL products are known, combined with unequalled versatility in mounting possibilities. The durable ...

Anywhere you need: 20 Watts RMS Audio Power Amplifier Output for 8 Ohm Speaker Maximized Audio Level for Output Power Audio Quality Superior to Standard Amplifiers Input/Output Terminal Block Connections Line Level Balanced or ...

The ST-NG1 is the ideal choice where random white or pink noise is needed. It is suitable either as a reference noise source for audio measurements or as a masking noise source in engineered sound or counter-intelligence ...

The STM-2X is the ideal choice in many installations where a microphone preamplifier is required, and is the ideal choice where either a toggle-type switch or push-to-talk switch is to be provided for microphone control, particularly if ...

The RU-VCA2 or RU-VCA2D make an ideal choice for mono or stereo installations where either local and/or remote audio level control is desired. Single or multiple control points are possible using optional RDL level controllers.Features: ...

The STA-1M allows bridging any audio line, adjusting the gain, and driving a balanced or unbalanced line. The circuit design allows the input to accept either balanced or unbalanced signals, of either high or low impedance. This is an ...

Each of the ST-ACR products is an Audio Controlled Relay in the group of STICK-ON series products by Radio Design Labs. These products are designed for quick, convenient installation, and reliable operation in a variety of control ...

The STM-1 is part of the group of STICK-ON products from Radio Design Labs. The STM-1 is a quality microphone preamplifier designed for use in commercial sound, broadcast, and recording applications. Its compact size makes it ideally ...

The ST-PA6 is a utility power amplifier in the convenient line of STICK-ON products from Radio Design Labs. The durable permanent or detatchable bottom adhesive provided with the ST-PA6 permits quick, permanent mounting nearly anywhere, or ...

The RU-DA4D is part of the group of RACK-UP products from Radio Design Labs. RACK-UPs feature the advanced circuitry for which RDL products are known, combined with accessible user-friendly controls and displays. The ultra compact design ...

Repack/Box OpenThe TX-LM2 is part of the group of versatile TX series products from Radio Design Labs. The TX series feature the advanced circuitry for which RDL products are known, combined with durable, quality connectors. The ...

Repack/Box OpenThe STM-2X is the ideal choice in many installations where a microphone preamplifier is required, and is the ideal choice where either a toggle-type switch or push-to-talk switch is to be provided for microphone control, ...

The ST-PA18 features a balanced line level input that may be connected unbalanced. The gain control range will accommodate standard unbalanced levels as well as professional balanced levels. The module bridges the input signal. LOOP OUT ...

The ST-PD5U is the ideal choice where power distribution from a current-limited switching power supply is needed. It is suitable for powering up to five modules from a single power supply. The current limiting circuitry in many switching ...

The RU-UDA4 is part of the group of RACK-UP products from Radio Design Labs. RACK- UPS feature the advanced circuitry for which RDL products are known, combined with accessible user-friendly controls and displays. The ultra compact design ...

The STD series of products is part of the STICK-ON line of products from Radio Design Labs. It is a resistive branching network with RF filtering on each of the four channels. Any channel, A through D, may be either an input or an output. ...

The ST-PA2 is a utility power amplifier in the convenient line of STICK-ON products from Radio Design Labs. The durable bottom adhesive permits quick, permanent mounting nearly anywhere, or use it with RDL's racking accessories. The ST-PA2 ...