 A.A.C. |
 A.B. |
 A.B. |
 A.B.C. |
 A.B.C. Radio |
 A.C. |
 A.C. |
 A.C. |
 A.C.E. (GB) |
 A.C.E. (GB) |
 A.C.E.B. |
 A.C.E.C. |
 A.C.E.C. |
 A.C.E.C. |
 A.C.E.R. |
 A.C.E.R. |
 A.C.R.M. |
 A.E.G. |
 A.I.R. |
 A.I.R. |
 A.J.C. |
 A.J.S. |
 A.L.T. |
 A.M.E. |
 A.M.F. |
 A.M.O. |
 A.M.O. |
 A.O.I.P |
 A.R.C. Radio - Radioflux |
 A.R.T. |
 A.S.I.A. |
 A.S.R. |
 AAA-Radio |
 Abbotwares |
 ABE |
 Academia |
 Academia |
 Academy |
 Academy |
 Accessoires et Spécialités |
 Accuphase |
 Aciko |
 Aciko |
 ACME |
 ACME |
 ACME |
 ACME (GB) |
 ACME Apparatus |
 Acora |
 Acora |
 ACR (Suisse) |
 Acréa |
 Acrem |
 Acron |
 Acron |
 Acustica |
 ADB |
 ADC |
 ADC |
 Addex |
 Addison |
 Admiral (USA) |
 Admiral (USA) |
 Adrelux |
 Adret |
 Adret |
 Adria |
 Adriphone Radio |
 Adriphone Radio |
 Advance |
 Adyson |
 AEESA |
 AEESA |
 AEL |
 Aera |
 Aeriola |
 Aerodyne |
 Aerovox |
 Aetherkruiser |
 Aetna |
 AFA |
 AFA |
 AFA |
 AGA-Baltic |
 AGA-Baltic |
 AGA-Baltic |
 Agris |
 Agris |
 Agris |
 Ahemo |
 Aiko |
 Aimor |
 Air Equipement |
 Air Equipement |
 Air-King |
 Air-King |
 Airelson |
 Airline |
 Airline |
 Airphone |
 AITC |
 Aïtron |
 Aiwa |
 Akaï |
 Akaï |
 Akaï |
 Akaï |
 Akaï |
 Akaï |
 Akaï |
 Akaï |
 Akaï |
 Akaï |
 Akaï |
 Akira Europe |
 Akkord |
 Al-ma |
 Alajouanine |
 Alba |
 Albertronic |
 Albis |
 Albrecht |
 Albrecht |
 Albrecht |
 Alco |
 Alcyon |
 Aldéto |
 Alf Ton |
 Alfa (BE) |
 Alfa (BE) |
 Alfa (BE) |
 Alfar |
 Alja |
 Allocchio, Bacchini |
 Allocchio, Bacchini |
 Allocchio, Bacchini |
 Allocchio, Bacchini |
 Allocchio, Bacchini |
 Alpage |
 Alpha |
 Alpha Elettronica |
 Alpine |
 Alta |
 Altar |
 Altec |
 Alternarex |
 Altex-Radio |
 Altona radio |
 Altona radio |
 Always |
 Ambassador |
 American Bosch |
 Americana |
 AMI (Corée) |
 Ampec |
 Ampex |
 Amplion |
 Amplium |
 Amplivision |
 Amplix |
 Amplix |
 Amplix |
 Amplix |
 Ampro |
 Amrad |
 Amroh |
 Amstrad |
 Amtron |
 Amtroncraft Kits |
 Ancel (E.) |
 Ancel (E.) |
 Ancel (Louis) |
 Andrea |
 Andrea |
 Aneng |
 Anglo |
 Angstrem |
 Angstrem |
 Answer |
 Antar |
 Antarion |
 Antena |
 Antena |
 Antena |
 Antena |
 Antena |
 Antennes Leclerc |
 Antinéa |
 Anto |
 Aomekie |
 AOR |
 Aoyue |
 Apel |
 Apex |
 Appareillage Général Radio-Electrique |
 Apsitis & Zhukovskis |
 Ara (Sefara) |
 Arador |
 Arako |
 Arako |
 Arayla |
 Arayla |
 Arborphone |
 Arc En Ciel |
 Archer |
 Arci |
 Arco |
 Arco |
 Arcorp |
 Aréga |
 Arel |
 Arena |
 Arena (DK) |
 Aréso |
 Aréso |
 Aréso |
 Aréso |
 Aréso |
 Argosy |
 Ariane |
 Aries |
 Aristona |
 Aristona |
 ARK Recording Devices |
 Armée Française |
 Armée Française |
 Armonograph |
 Armor |
 Armorial |
 Armstrong |
 Armstrong |
 Arphone |
 Arrow |
 Art et Acoustique Appliquée 3A |
 Art et Acoustique Appliquée 3A |
 Art et Technique |
 Art Luxe et Technique |
 Artech |
 Artés |
 Arvin |
 Arvin |
 Asa |
 Asa |
 Asa |
 Asa |
 Asaflex |
 ASEA |
 Askar |
 Askar |
 Askar |
 Aster |
 Aster Radio |
 Astor |
 Astor |
 Astoria |
 Astra |
 Astron Radio |
 Asuki |
 ATEI |
 Atelier Flesch Arad |
 Ateliers Bigot |
 Atlantic |
 Atlas |
 Ato |
 Atra |
 Atten |
 Atwater Kent |
 Atwater Kent |
 Audax |
 Audio Dynamics Corporation |
 Audio Electronic International |
 Audiola |
 Audiola (DK) |
 Audios |
 Audiosonic |
 Audiotecnic |
 Audiotecnic |
 Auditor |
 Auditor |
 Aurand-Wirth |
 Auriéma |
 Auritone |
 Aurore-Radio |
 Automatic radio |
 Automatic Radio MFG. Co. Inc. |
 Autophon |
 Autophon |
 Autovox |
 Autovox |
 Avialex |
 Avialex |
 AVO |
 AWA |
 AWA |
 AZ |
 Azur |