PAR 113

PAR 113

PAR 113 RF Preamplifier Summary

Overview

The PAR 113 is a type of RF preamplifier designed to amplify low-level radio-frequency signals. It is a crucial component in various RF applications, including telecommunications, radio broadcasting, and scientific research.

Key Features

• Digital Signal Processing: Not applicable; the PAR 113 is an analog device.
• Channel Selection: It does not have programmable channel locking like modern RF devices but is designed for general RF signal amplification.
• Signal Quality: It provides high-quality signal amplification, though specific signal-to-noise ratio (SNR) figures are not readily available in the provided sources.
• Power Supply: It uses batteries, which can cause damage if not properly maintained. There is an option to consider replacing the power supply with a low-noise, non-battery solution[2].
• Design and Repair: The amplifier’s design includes adjustable capacitors and uses older technology, which can be challenging to repair and maintain. It is recommended to thoroughly clean the PCB and replace common parts like electrolytic capacitors to restore functionality[2].

Applications

The PAR 113 is suitable for applications requiring the amplification of weak RF signals. It is not designed for high-power RF applications like driving transmitter antennas but is useful in laboratory settings, radio receivers, and other low-power RF systems.

Technical Specifications

Detailed technical specifications such as frequency range, gain, and input/output impedance are not provided in the sources. However, it is known to be a preamplifier, indicating it is used for initial signal amplification stages.

References

1. EEVblog Forum - “EG&G PARC Model 113 Preamplifier repair/restoration” - https://www.eevblog.com/forum/repair/egg-parc-model-113-preamplifier-repairrestoration/
2. Analog Devices - “Low Dropout Regulators” - http://www.analog.com/media/en/news-marketing-collateral/product-highlight/Low_Dropout_Regulators.pdf
3. MIT Web Archive - “PAR-113 Manual and Schematics” - http://web.mit.edu/8.13/8.13d/manuals/egg-par-ortec/par-113 (Note: This link is provided in the EEVblog forum but was not directly accessed for this summary.)

Other info

• Status: OK
• Last known location: Suporte superior da mesa óptica 3
• Serial: 17151
• Inventory ID: 08/1633
• Arrival Date: 01/01/1900
• Keywords: pré amplificador rf
• Old LCO ID: LCO430201
• Old LCO Category: RF - Amplificador