• Altronic Research
Technical Manuals

• ATA Audio
Technical Manuals

• Audemat-Aztec
Equipment Manuals

• Audion Labs
Technical Manuals

• APT
Technical Manuals

• Belar
Technical Manuals

• Bird Electronic
Obsolete Technical Manuals
Tech Manuals Under Each Product

• Broadcast Electronics
Technical Manuals

• Broadcast Devices
Technical Manuals

• Broadcast Software
Technical Manuals

• Burk Technology
Technical Manuals

• CircuitWerkes
Technical Manuals

• Comrex
Technical Manuals

• CRL
Equipment Manuals

• Crown Broadcast
Technical Manuals

• D&M Professional
Denon & Marantz Manuals

• Harris
Equipment Manuals
Requires Log-In

• Henry Engineering
Technical Manuals

• Marti Electronics
Equipment Manuals

• Northland Radio
Transmitter Manuals
Manuals listed are for sale.

• Orban
Equipment Manuals

• Potomac Instruments
Technical Manuals

• Telos Systems
Technical Manuals

• Transcom Corporation
Transmitter Manuals
Exciter Manuals
Manuals listed are for sale.

• TransLanTech
Ariane Equipment Manuals

• Wheatstone
Wheatstone Technical Manuals
Audioarts Technical Manuals

• Hallikainen Manual Archive

• Purple Audio Schematic Library
Schematics/manuals for Altec, Ampex,
CBS, Datamix, Gates, Langevin, Pultec,
RCA, Spectra Sonics, Sony, Telefunken,
3M, UREI

• Technician's File Cabinet
Multiple links to service and technical
information for consumer audio, pro
audio, old radios, ham radio, test equip,
military electronics, and  transformers.

Equipment Reviews and User Reports
Published in Radio Guide Magazine

Telco & Codec
Portable & Remote Audio

Digital Audio
Automation & Logging

Transmitters & Exciters
Antennas & Transmission

STL & Remote Control
Test & Monitor & Power

Audio Processing
Mics & Monitors

Consoles/Mixers
Routers & Audio DA

Field Guide
User Reports
Comrex - ACCESS
Comrex - Matrix
Comrex - Mix-Minus

Field Guide
User Reports
BE - AudioVAULT

Field Guide
User Reports
BE - 4MX50
BE - FM25
Continental - 816HD
Nautel - V10

Field Guide
User Reports
Anritsu - MS2721A
Axia - IP-Audio System
Fanfare - FT-1AP
Henry - Power Clamp
Sencore - SPDATB Toolbox

Field Guide
User Reports
Broadcast Warehouse - DSP-X
Inovonics - Audio Processors
Omnia - 3fm Turbo

Field Guide
User Reports
Radio Systems - Millenium