AKG Blue Line System Microphone
Akustische u. Kino-Geraete Gesellschaft m.b.H.

AKG Model C 12 Multi-Directional Condenser Microphone
Included are photos and information on the ELA M 250

AKG Model C 12A Manual in German

AKG Model C 24 Manual in English

AKG Model C 60 Microphone with CK 28 Cardioid Capsule

AKG Model C 414 B-ULS Multi-Directional Condenser Microphone

AKG Model C 424 FET Quadraphonic Condenser Microphone

AKG Model C 426 B comb Remote-Controlled
Stereophonic Condenser Microphone

AKG Model C 451 B Studio Cardioid Condenser Microphone

AKG Model C 1000 S Cardioid Condenser Microphone

AKG Model C 2000 B Cardioid Condenser Microphone

AKG Model C 3000 B Cardioid Condenser Microphone

AKG Model C 4000 B Multi-Directional Condenser Microphone

AKG Model C 4500 B-BC Cardioid Condenser
Broadcast and Voice-Over Microphone

AKG Model C 5600 Cardioid Condenser Instrument Microphone

AKG Model CK 1 and CK 8 Condenser Microphone Capsules
Includes details of the CMS capsules and preamps, the C 414, and the CE 10

AKG Model D 12 E Cardioid Dynamic Microphone

AKG Model D 24 Cardioid Dynamic Microphone

AKG Model D 112 Cardioid Dynamic Microphone

AKG Model D 200 E Cardioid Dynamic Microphone

AKG Model D 202 and D 222 Cardioid
Pressure-Gradient Dynamic Microphones

AKG Model D 310 Cardioid
Pressure-Gradient Dynamic Microphone

AKG Model D 2000 E Supercardioid Dynamic Microphone

AKG Model DYN 60-K Dynamic Microphone
Dual-badged as Siemens

AKG SolidTube Cardioid Condenser Microphone

Altec Models 632C and 633A/C Dynamic Microphones

Altec Models 639A and 639B Dynamic and Ribbon Microphones

Altec Model 659A Cardioid Moving Coil Microphone

Altec Model 670A Multi-Directional Ribbon Microphone

Altec Model 684A Omni-Directional Dynamic Microphone

Altec Model 686A Omni-Directional Dynamic Lavalier Microphone

Altec Model 21B Condenser Microphone
A component of the Altec M11 Microphone System

Altec Model M-20 Microphone System (“Lipstik”)

Altec Model M-30 Microphone System (“Lipstik”)

Altec Model M53 and M54 Microphone System
with Altec 201A Base preamplifier

American Model D 8T Public Address Omni-Directional
Dynamic Microphone

American Model D-22 Omni-Directional Dynamic Microphone

American Models DR 330, R 331, and DR 332 Microphones

Amperite Model RBHG Bi-Directional Ribbon Microphone

Amperite Models SR-80 and RB Bi-Directional Ribbon Microphones
Includes specifications booklet and preamp schematics for the RA-I and RAE models

Amperite Microphone Circuit Instruction Booklet from 1937

audio-technica Model AT 849 Stereophonic
Boundary Condenser Microphone

audio-technica Model AT 895 Adaptive-array Microphone System

audio-technica Model AT 2020 Cardioid Condenser Microphone

audio-technica Model AT 4050/CM5 Multi-Directional
Condenser Microphone

audio-technica Model AT 4060 Cardioid Condenser
Tube Microphone

audio-technica Model AT 4071a Shotgun Condenser Microphone

Bang & Olufsen Microphones

Behringer Model ECM8000 Omni-Directional
Measurement Condenser Microphone

beyerdynamic Model M 201 Hypercardioid Dynamic Microphone

beyerdynamic Model M 500 N (C) Hypercardioid
Dynamic Ribbon Microphone

beyerdynamic Model MC 740 N (C) P48 Multi-Directional
Condenser Microphone

beyerdynamic Model MC 834 N (C) PV Cardioid
Condenser Microphone

BLUE Model Baby Bottle Cardioid Condenser Microphone

BLUE Model The Ball Cardioid Dynamic
Phantom-powered Microphone

BLUE Model 8-Ball Cardioid Pressure Gradient
Phantom-powered Microphone

BLUE Model Mouse Cardioid Pressure Gradient
Condenser Microphone

BLUE Model Snowball Multi-Directional USB Microphone

BLUE Model Dragonfly Cardioid Condenser Microphone

BLUE Model Kiwi Multi-Pattern Condenser Microphone

Brüel & Kjær (DPA) Type 4007 Omni-Directional
Condenser Microphone

Bruno Model VR HP Bi-Directional Velocity Microphone

CAD Model C400S Cardioid Condenser Microphone

CAD Model e300² Multi-Pattern Condenser Microphone

Coles Electroacoustics Models 4104, 4038, 4115 Microphones

Crown Models PCC-160 and PCC-160W Phase Coherent
Cardioid Condenser Microphones

Crown Model PZM-30D Pressure Zone Microphone

Crown Model SASS-P MK II Stereophonic
Pressure Zone Microphone

Electro-Voice Model 630 Omni-Directional Dynamic Microphone

Electro-Voice Model 631 Omni-Directional Dynamic Microphone

Electro-Voice Model 635A Omni-Directional Dynamic Microphone

Electro-Voice Model 636 Omni-Directional Dynamic Microphone

Electro-Voice Model 638 General Purpose Dynamic Microphone

Electro-Voice Model 643 Cardiline Cardioid-line Dynamic Microphone

Electro-Voice Model 644 Sound Spot Cardioid Dynamic Microphone

Electro-Voice Model 649B Lavalier Omni-Directional Dynamic Microphone

Electro-Voice Model 650 Omni-Directional Dynamic Microphone

Electro-Voice Models 652, 652A Omni- and Semi-Directional Dynamic Microphones

Electro-Voice Model 654 Omni-Directional Dynamic Microphone

Electro-Voice Model 654A Omni-Directional Dynamic Microphone

Electro-Voice Model 655-A Omni-Directional Dynamic Microphone

Electro-Voice Model 655C Slim-Trim Omni-Directional Dynamic Microphone

Electro-Voice Model 660 Supercardioid Dynamic Microphone

Electro-Voice Model 664 Cardioid Dynamic Microphone

Electro-Voice Model 664A Supercardioid Dynamic Microphone

Electro-Voice Model 665 Cardioid Dynamic Microphone

Electro-Voice Models 666 and 666R Cardioid Dynamic Microphones
Included on this page is the Electro-Voice Model 667 Preamplifier

Electro-Voice Model 667A Dynamic Cardioid Broadcast Microphone

Electro-Voice Model 668 Dynamic Cardioid Broadcast Microphone

Electro-Voice Model 676 Dynamic Cardioid Microphone

Electro-Voice Model 911 Mercury General Purpose Crystal Microphone

Electro-Voice Model 951 Cardioid Crystal Microphone

Electro-Voice Model CH15S Condenser Hypercardioid System Microphone

Electro-Voice Model CS15 Cardioid Electret Condenser Microphone

Electro-Voice Model DL42 Dynamic Uni-Directional Microphone

Electro-Voice Models DO56/DO56L Omni-Directional Dynamic Microphones

Electro-Voice Model DS35 Cardioid Dynamic Microphone

Electro-Voice Model PL9 Omni-Directional Dynamic Microphone

Electro-Voice Model PL10 Cardioid Dynamic Microphone

Electro-Voice Model RE10 Supercardioid Dynamic Microphone

Electro-Voice Models RE11 and PL11 Supercardioid Dynamic Microphones

Electro-Voice Model RE15 Cardioid Dynamic Microphone

Electro-Voice Model RE16 Supercardioid Dynamic Microphone

Electro-Voice Model RE18 Supercardioid Dynamic Microphone

Electro-Voice Models RE20 and PL20 Cardioid Dynamic Microphones

Electro-Voice Model RE20-75SE Special Edition
Cardioid Dynamic Microphone

Electro-Voice Model RE27N/D Cardioid Dynamic Microphone

Electro-Voice Model RE34 Cardioid Line/Mic Level Condenser Microphone

Electro-Voice Model RE38N/D Cardioid Dynamic Microphone

Electro-Voice Model RE45N/D Cardiline Dynamic Shotgun Microphone

Electro-Voice Model RE50 Omni-Directional Dynamic Microphone

Electro-Voice Model RE55 Omni-Directional Dynamic Microphone

Electro-Voice Model RE85 Omni-Directional Lavalier Dynamic Microphone

Electro-Voice Model RE200 Cardioid Condenser Instrument Microphone

Electro-Voice Model RE410 Cardioid Condenser Microphone

Electro-Voice Model RE1000 Supercardioid Condenser Microphone

Electro-Voice Model RE2000 Supercardioid Condenser Microphone

Electro-Voice Models V-1, V-1A, V-2, V-2A, V-3, and V-4 Velocity Microphones

Elgin (American) D 44 Omni-Directional Dynamic Microphone

Fostex Model M11RP Cardioid Printed Ribbon Microphone

Fostex Model M20RP Stereophonic MS Printed Ribbon Microphone

Fostex Model M22RP Stereophonic MS Printed Ribbon Microphone

Fostex Model M77RP Cardioid Printed Ribbon Microphone

Fostex Model M80RP Bi-Directional Printed Ribbon Microphone

Fostex Model M85RP Hypercardioid Noise-Canceling
Printed Ribbon Microphone

Fostex Model M88RP Bi-Directional Printed Ribbon Microphone

Fostex Model M115/M115B Hypercardioid Moving Coil Microphone

Fostex Printed Ribbon Type Microphones Technical Report

HMV Model 2350 H Ribbon Microphone
from the UK

Lomo Models 19A9 and 19A19 Cardioid Condenser Microphones
from Russia

BBC-Marconi Type AX Ribbon Microphone
from the UK

BBC-Marconi Type B Ribbon Microphone
from the UK

BBC-Marconi Condenser Microphone
from the UK

BBC-PGS Ribbon Microphone, predecessor of the Coles 4038
from the UK

The Marconi-Sykes Magnetophone, from the UK

Melodium Type 42 B Velocity Microphone
from France

Milab Models VM-40 and VM-41 Condenser Microphones
from Sweden

Nakamichi Model CM-300 Electret Condenser System Microphone

Neumann Model BCM 104 High Resolution Broadcast Microphone

Neumann Model BCM 705 Dynamic Broadcast Microphone

Neumann Model KM 56c Multidirectional Condenser Microphone

Neumann Model KM 84 Cardioid Pencil Condenser Microphone
(Added to the site during February, 2023)

Neumann Model KM 86 Multidirectional Condenser Microphone

Neumann Model KU 100 Binaural Microphone

Neumann Models M 49, M 50, and M 249 Condenser Microphones

Neumann Model M 149 Tube Multi-Directional Condenser Microphone

Neumann Model QM 69 Quadro Condenser Microphone and
Neumann Model SM 69 Stereophonic Condenser Microphone

Neumann Model TLM 49 Cardioid Condenser Microphone

Neumann Model TLM 103 Cardioid Pressure Gradient Microphone

Neumann Model TLM 127 Dual Diaphragm Multi-Directional Condenser Microphone

Neumann Model TLM 170 R Remote Control Condenser Microphone

Neumann Model TLM 193 Cardioid Condenser Microphone

Neumann Model U 47 Multi-Directional Condenser Microphone
Includes the Telefunken 201M in the brochure at the bottom of the page

Neumann Model U 47 FET Cardioid Condenser Microphone

Neumann Model U 64 Miniature Cardioid Condenser Microphone

Neumann Model U 67 Multi-Directional Condenser Microphone

Neumann Models U 87 and U 87 Ai Multi-Directional Condenser Microphones

Paso Model M 401 U Cardioid Dynamic Microphone

Pearl Model CR-55 Cardioid Condenser Microphone
from Japan

International Philco Ribbon (Velocity) Microphone

Philips Model 9585 Dynamic Microphone
Please help us with this mic if you can

Philips Model B436 Hypercardioid Condenser Microphone

Philips Model EL 6037 Cardioid Dynamic Microphone

RCA Aeropressure Microphone

RCA Type 44-BX Bi-Directional Velocity Microphone

RCA Type 50-A Inductor Microphone

RCA Type 74-B Bi-Directional Junior Velocity Microphone

RCA Type 77-A Uni-Directional Velocity Microphone

RCA Type 77-B Uni-Directional Microphone

RCA Type 77-B1 Uni-Directional Microphone

RCA Type 77-C All-Purpose Microphone

RCA Type 77-C1 Combination Microphone

RCA Type 77-D Poly-Directional Microphone

RCA Type 77-DX Poly-Directional Microphone

RCA Type 88-A Pressure Microphone

RCA Type BK-1A Pressure Microphone

RCA Type BK-4A Ribbon-Pressure Microphone

RCA Type BK-5A and BK-5B Uniaxial Velocity Microphones

RCA Type BK-6B Miniature Dynamic Microphone

RCA Type BK-10A Uniaxial Velocity Microphone

RCA Type BK-11A Bi-Directional Velocity Microphone

RCA Type BK-12A Subminiature Dynamic Microphone

RCA Types KB-2A, B, C Bi-Directional Bantam Velocity Microphones

RCA Type KN-1B Pressure Microphone

RCA Type KU-2A Uni-Directional Velocity Microphone

RCA Type KU-3A Uni-Directional Velocity Microphone

RCA Types PB-31, PB-140, PB-144, 44-A, and
44-B Bi-Directional Velocity Microphones

RCA Type PB-46 Ribbon Transmitter
(MI-3017, prototype velocity microphone)

RCA Type PB-90 Bi-Directional Velocity Microphone

RCA Type SK-30 and SK-31 Dynamic Microphones

RCA Type SK-39A Aerodynamic Microphone

RCA Type SK-45B Omni-Directional Dynamic Microphone

RCA Type SK-46 Program Velocity Microphone

RCA Type MI-6203 and SK-50 Varacoustic Velocity Microphones

Reslo Ribbon Microphone

RØDE K2 Tube Multi-Pattern Microphone

Schoeps Model CMC5-U with MK41 Supercardioid Condenser Capsule

Sennheiser Model MD 409 U 3 Cardioid Dynamic Pressure Gradient Microphone

Sennheiser Model MD 416 U Cardioid Dynamic Microphone

Sennheiser Model MD 421 Cardioid Dynamic Microphone

Sennheiser Model MD 441 U Supercardioid Dynamic Microphone

Sennheiser Model MKE 2 P-C Lavalier Microphone

Sennheiser Model MKH 805 Shotgun Microphone
Includes a service manual for MKH 405 T, 805 T, 105 T
and one for MKH 415 T, 435 T, and 815 T (both are PDFs)

Shure Microflex Boundary Electret Condenser Microphone

Shure Models 55, 556A, 556B, and 55SH Series II
Cardioid and Supercardioid Dynamic Microphones
The Model 55 shown is the Stromberg-Carlson MC31 multi-impedance version

Shure Model 300 Bi-Directional Ribbon Microphone

Shure Model 315 Bi-Directional Ribbon Microphone

Shure Model 330 Uni-Directional Supercardioid Ribbon Microphone

Shure Model 333 Concert Line Uni-Directional Ultracardioid Ribbon Microphone

Shure Model 525 Slendyne Omni-Directional Dynamic Microphone

Shure Model 535 Slendyne Omni-Directional Dynamic Microphone

Shure Model 545S Uni-Directional Dynamic Microphone

Shure Model 545SD Uni-Directional Dynamic Microphone

Shure Model 576 Omni-Directional Dynamic Microphone

Shure Model 578S Omnidyne Omni-Directional Dynamic Microphone

Shure Model 578 Omnidyne Probe Omni-Directional Dynamic Microphone

Shure Model 730B Uniplex Uni-Directional Crystal Microphone

Shure Model KSM9 Dual Pattern Microphone

Shure Model PG81 Cardioid Condenser Microphone

Shure Model SM3B Bi-Directional Ribbon Microphone

Shure Model SM5B Cardioid Dynamic Boom Microphone

Shure Model SM7 Uni-Directional Dynamic Microphone

Shure Model SM7B Cardioid Dynamic Microphone

Shure Model SM33 Cardioid Ribbon Microphone

Shure Model SM54 Cardioid Dynamic Microphone

Shure Model SM57 Cardioid Dynamic Microphone

Shure Model SM58 Cardioid Dynamic Microphone

Shure Model SM59 Cardioid Dynamic Microphone

Shure Model SM62 Cardioid Dynamic Microphone

Shure Model SM63L Omni-Directional Dynamic Microphone

Shure Model SM76 Omni-Directional Dynamic Microphone

Shure Model SM80 Omni-Directional Condenser Microphone

Shure Model SM81 Cardioid Condenser Microphone

Shure Model SM82 Line Level Uni-Directional Microphone

Shure Model SM85 Cardioid Condenser Microphone

Shure Model VP88 Stereophonic MS Condenser Microphone

Sony Model C-37 FET Multi-Directional Condenser Microphone

Sony Model C-37A Variable-Directional Condenser Microphone

Sony Model C-37P Variable-Directivity Condenser Studio Microphone

Sony Model C-38B Multi-Directional Condenser Microphone

Sony Models C-55FET and C-55P Cardioid Condenser Microphones

Sony Model C-350 Cardioid Condenser Microphone

Sony Model C-500 Cardioid Condenser Microphone

Sony Model C-800 Vacuum Tube Condenser Microphone

Sony Model ECM-22P Cardioid Electret Condenser Microphone

Sony Model ECM-33F Cardioid Electret Condenser Microphone

Sony Model ECM-56F Cardioid Condenser Microphone

Sony Model ECM-250 Electret Condenser Microphone

Sony Model ECM-377 Cardioid Condenser Studio Microphone

Sony Model ECM-737 Electret Condenser Stereophonic Microphone

Sony Model ECM-MS957 Electret Condenser MS Stereophonic Microphone

Sony Model ECM-990F Electret Condenser Stereophonic Microphone

Soundelux Model U195 Cardioid Condenser Microphone

STC Model 4017C Dynamic Microphone

STC Model 4021 Omni-Directional Dynamic Microphone

STC Model 4033-A Composite Cardioid Microphone

Syncron Model AU-7a FET Cardioid Condenser Microphone
Plus information on the Fairchild F/22 and the Syncron S-10

Turner Model 57 Omni-Directional Dynamic Microphone

Turner Model 77 Hybrid Ribbon/Moving Coil Cardioid Microphone

Turner Model 87 Bi-Directional Velocity Microphone

Turner No. 101C (Stromberg-Carlson Model 12) Cardioid Microphone

Turner Model 401 Omni-Directional Dynamic Microphone

Webster-Chicago Velotron Static Velocity Microphone

Western Electric No. 618A Moving Coil Microphone

Western Electric No. 630A Moving Coil Microphone

Western Electric No. 47 Amplifier (early microphone)

Western Electric 640AA condenser microphone
and RA-1095 amplifier twelve-page booklet

 Altec Specification Sheets

 Altec 361B Mixer/Power Amplifier specification booklet (PDF)

 Altec 632C and 633A/C microphone specification sheet (PDF)

 Altec 639A/B microphone specification sheet (PDF)

 Altec 650A and 651AH microphone specification sheet (PDF)

 Altec 659A microphone specification sheet (PDF)

 Altec 677B microphone specification sheet (PDF)

 Altec 674A, 675A, 678A, 679A microphone specification sheet (PDF)

 Altec 681A microphone specification sheet (PDF)

 Altec 682B microphone specification sheet (PDF)

 Altec 683B microphone specification sheet (PDF)

 Altec 684B microphone specification sheet (PDF)

 Altec 685B microphone specification sheet (PDF)

 Altec 688B microphone specification sheet (PDF)

 Altec 689B and 689BX microphone specification sheet (PDF)

 Altec 697A microphone/amplifier for handsets specification sheet (PDF)

 Altec M49, M50, M51, and M52 condenser microphone instructions (PDF)

 Altec Microphone Accessories brochure (four pages) (PDF)

 Additionally, here is the Lansing Heritage Library site map

 audio-technica data sheets courtesy of Mr. Jay Clugston

 audio-technica AT831b specification sheet (PDF)

 audio-technica AT857QMa–AT857QMLa specification sheet (PDF)

 audio-technica AT4033a specification sheet (PDF)

 audio-technica AT4041 specification sheet (PDF)

 audio-technica AT4049 specification sheet (PDF)

 audio-technica AT4050/CM5 marketing brochure (PDF)

 audio-technica AT4050/cm5 specification sheet (PDF)

 audio-technica AT4071a specification sheet (PDF)

 audio-technica AT4073a specification sheet (PDF)

 audio-technica ATM23HE specification sheet (PDF)

 audio-technica ATM25 specification sheet (PDF)

 audio-technica ATM41a specification sheet (PDF)

 audio-technica ATM73a specification sheet (PDF)

 audio-technica ATM75 specification sheet (PDF)

 audio-technica ATM87R specification sheet (PDF)

 audio-technica ATM89R specification sheet (PDF)

 audio-technica ATM450 specification sheet (PDF)

 audio-technica MB2000L specification sheet (PDF)

 audio-technica PRO 1a specification sheet (PDF)

 audio-technica PRO 2ax specification sheet (PDF)

 audio-technica PRO 7a specification sheet (PDF)

 audio-technica PRO 8HE specification sheet (PDF)

 audio-technica PRO 10HE specification sheet (PDF)

 audio-technica PRO 11 specification sheet (PDF)

 audio-technica PRO 25 specification sheet (PDF)

 audio-technica PRO 37R specification sheet (PDF)

 audio-technica PRO 42 specification sheet (PDF)

 audio-technica PRO 44 specification sheet (PDF)

 audio-technica PRO 47T and PRO 47TL specification sheet (PDF)

 audio-technica PRO 49Q and PRO 49QL specification sheet (PDF)

 audio-technica PRO 95 specification sheet (PDF)

 audio-technica PRO Series comparison brochure (PDF)

 audio-technica Studio Six-Pack brochure (PDF)

 Here is a comparison chart of the audio-technica AT801, AT802,
 AT803a, AT805S, AT811, AT812, AT813, AT813R, AT814a, AT815a,
 AT815R, AT831a, AT835, AT836, AT838G, 8100 Series windscreens,
 8200 Series line matching transformers, 8300 Series cable assemblies,
 8400 Series microphone mounts, 8500 Series power supplies, and
 8600 Series microphone stands (PDF)

 Beyer (beyerdynamic) Specification Sheets

 Here are specification sheets for the Beyer M 58, M 59, M 69 N (C),
 M 88 N (C), M 101, M 130, M 160, M 201, M 260, M 300, M 380,
 M 400, M 420, M 500, M 500 N (C) S, M 600, MC 734, MC 734 Pa,
 MC 736 PV, MC 737 PV, MC 740, MC 833, MCE 5, MCE 6, MCE 10,
 MA 5 T 12 N (CF), MA 5 P 48 N (CF), MCE 50/51, MCE 52, MCE 53,
 MCE 81, MCE 86, MPC 40, and SHM 20 series microphones (PDF)

 Bing Crosby—Les Paul—Jack Mullin collaboration with multi-track magnetic tape

 How it all came together during the mid-forties (PDF, 90KB)
 How it all came together during the mid-forties (Microsoft Word, 56KB)

 Fostex Technical Reports courtesy of Mr. Jay Clugston

 Fostex M51RP microphone technical report (PDF)

 Fostex M55RP microphone technical report (PDF)

 Fostex M115/M115B microphone technical report (PDF)

 Fostex M505/M505BL microphone technical report (PDF)

 Sony Specification Sheets

 Sony C-37P microphone instructions booklet (PDF)

 Sony C-38B and C-37P microphone specification sheet (PDF)

 Sony C-38B microphone service manual (PDF) Courtesy of Ms. Kimberly Stewart of Sony Electronic, Inc.

 Sony C-48 microphone specification sheet (PDF)

 Sony C-74 and C-76 microphone specification sheet (PDF)

 Sony ECM-16 and ECM-31M microphone specification sheet (PDF)

 Sony ECM-23F microphone specification sheet (PDF)

 Sony ECM-30 microphone specification sheet (PDF)

 Sony ECM-33F microphone specification sheet (PDF)

 Sony ECM-50PS microphone specification sheet (PDF)

 Sony ECM-53FP and ECM-41 microphone specification sheet (PDF)

 Sony ECM-56F microphone specification sheet (PDF)

 Sony ECM-65F and ECM-64P microphone specification sheet (PDF)

 Sony ECM-150 microphone specification sheet (PDF)

 Sony ECM-170A microphone specification sheet (PDF)

 Sony ECM-260F, ECM-210M, and ECM-210S microphone specification sheet (PDF)

 Sony ECM-990F mic specs and AC-148F power supply specs (PDF)

 Sony F-99M, F-500, and F-500/S microphone specification sheet (PDF)

 Sony F-115 microphone specification sheet (PDF)

 Sony F-420 microphone specification sheet (PDF)

 Sony F-520 microphone specification sheet (PDF)

 Sony F-660 and F-560 microphone specification sheet (PDF)

 Sony PBR-330 parabolic microphone specification sheet (PDF)

 Sony microphone applications sheet (PDF)

 Sony microphone summary sheet (PDF)

 Sony ECM (Electret Condenser Microphone) Service Manuals Courtesy of Mr. Torben Larsen

 Sony ECM-011 Service Manual (PDF)

 Sony ECM-221 Service Manual (PDF)

 Sony ECM-717 Service Manual (PDF)

 Sony ECM-727P Service Manual (PDF)

 Sony ECM-909A Service Manual (PDF)

 Sony ECM-999/999PR Service Manual (PDF)

 Sony ECM-CQP1 Service Manual, Version 1 (PDF)

 Sony ECM-DM5P Service Manual, Version 1.1 (PDF)

 Sony ECM-DS30P Service Manual (PDF)

 Sony ECM-DS70P Service Manual, Version 1.1 (PDF)

 Sony ECM-F8-T6 Service Manual (PDF)

 Sony ECM-F9-T7 Service Manual (PDF)

 Sony ECM-HS1 Service Manual (PDF)

 Sony ECM-HW1 Service Manual (PDF)

 Sony ECM-MS907 Service Manual, Version 1.2 (PDF)

 Sony ECM-S80 Service Manual, Version 1.0 (PDF)

 Sony ECM-S200 Service Manual (PDF)

 Sony ECM-T110 Service Manual (PDF)

 Sony ECM-T115/T145 Service Manual (PDF)

 Sony ECM-T140/T150 Service Manual (PDF)

 Sony ECM-Z70 Service Manual (PDF)

 Standard Telephones and Cables Ltd (later STC plc)

 STC marketing brochures for the 4021, 4032, 4033-A,
 4035, 4037, 4038, 4104, 4105, 4106, and 4108,
 as well as accessories and a 1963 price list

AKG full line catalog for 2001.

AKG dealer price comparison list for January, 1974.

Altec 438A Compressor Amplifier Operating Instructions.

Bell Labs condenser microphone.

Beyer microphone specifications and price list from 1965.

Beyer microphone price list from 1979.

Beyer microphone catalog from 1988.

Cannon P-type audio connectors.
(Predecessor of the UA-3-11/UA-3-12 and XLR types).

Cannon audio connector history.
Courtesy of Ray A. Rayburn.

The Corey Brunish Collection.

Electro-Voice Microphone Accessories Specification Sheet.

Electro-Voice Microphone Engineering Data Sheets.

FCC Eliminates Morse Code Requirement
for Ham (Amateur Radio) Exams.

How Radio Grew Up.
From the December, 1925 edition of Radio Broadcast.

Kenwood TS-140S/680S High Frequency Transceiver
Instruction Manual and six-page marketing brochure.

Kenwood PS-50 DC Power Supply Instruction Manual.

Kenwood AT-250 Automatic Antenna Tuner Instruction Manual.

Kenwood SM-220 Station Monitor Instruction Manual.

Tokyo Hy-Power HC-2000 User Guide.

Antenna tuning and related equipment.

McMartin Industries Specification Sheets for the
P-9D, 44, 58A, 250, 500, and 585 microphones.

Radio Home-Makers is a broadcast-related newspaper from 1930.

RCA Catalog. 144 pages. Viewable here;
downloadable as a 17-megabyte PDF.

RCA Type 70-D Transcription Turntable manual.

RCA Type BA-2C Vacuum Tube Booster Amplifier.

RCA Type BA-4C Vacuum Tube Monitor Amplifier.

RCA Type BA-25A AGC Program Amplifier Instructions.

RCA Type BN-10A Microphone-Amplifier.

RCA Type BTA-5F AM Transmitter.

RCA Type KS-3B Microphone Boom Stand.

RCA Type LS-1 Speakers and the
RCA MI-9358-A power amplifier.

RCA Radiotron Broadcast Station Directory
and vacuum tube catalog for 1929.

RCA Broadcast News for October, 1931.

RCA Broadcast Equipment Catalog for 1941.

RCA microphone price list for January 2, 1969.

RCA microphone specification comparison.

RCA microphone stands and accessories.

RCA Radiola magazine advertisements from 1928, 1929, 1930.

RCA Velocity Microphone Bulletin No. 35 for 1933.

Shure Model A47 Quick Disconnect Stand Adapter.

Shure Model S37A Desk Stand.

Shure Technical Specification Sheets.

Sontronics Apollo stereophonic (Blumlein) ribbon microphone.

Sony Condenser Microphone Brochure.

Sony Mics and Mixers Quick Reference Guide.

Sony Professional Audio Catalog 1999-2000.

Twelve Microphones that Made History by Jim Webb.
with permission of its author.

United States Navy mystery microphone.
Please help us to identify this mic.

Western Electric 633A microphone booklets.

Western Electric 1900s Magazine and Catalog Advertisements.

Western Electric RA-330 and RA-331 Sound Level Meters Instruction Bulletin No. 1069.

Western Radio catalog for 1929.

Yamaha MC Series Operating Manual for MC802, MC1202, MC1602.

Uniden Model HR2600 President 10-Meter
Amateur Radio Transceiver User Guide.

Pop Stopper (Microphone P-pop Screen).

KBIG-KOST studio tour.

KBIG, KIIS, Mount Wilson transmitter site tour.

KFI historical tour
(Courtesy of Barry Mishkind).

KMPC transmitter tour.

KOGA antenna tower blown down by wind.

Another windstorm, this one in Virginia.

Hot-air balloon encounters KKOB antenna.

KPCS historical tour.

KRLA broadcast history
(Courtesy of Barry Mishkind).

WHO station tour
(Courtesy of Barry Mishkind).

WLW super station tour
(Courtesy of Barry Mishkind).

Care and Feeding of Power Grid Tubes.

Matching transformers.

Paquette Microphone Museum tour.

Souvenir program from the Standard School Broadcast.
Included is an audio recording of the broadcast’s theme and introduction.

More broadcasting history.

More old-time radio.

Pro Tools evolution: 1991–2008.

Mercury Electronic Labs Ultra-Mike.
If you are able, please help us with information about this mic.

Deanna Durbin.

Russian ML-15 microphone.

The Beach Boys Pet Sounds sessions.

Edward, David, and Alexander.

Orson Welles and War of the Worlds.

Perry Como and a fine old AFRS RCA Type 44.

The Harvey Hetland Memorial Microphone.

Mike Sakellarides visits Pasadena City College.

Celebrities with mics, part one
(Linked to parts two through six).

Comparison of an on-camera mic’s audio quality
to that of a properly placed professional mic.

NBC Radio ad from a 1955 issue of The Saturday Evening Post.

Hear a sequence of the sounds of microphones on this site.

Colophon.

Other links.

TERMINOLOGY: Some visitors may prefer the term “capacitor mic” to “condenser mic.” This is fine. Since most manufacturers use the older term, and because many micro­phones seen here are from years past, a decision was made to stick with “condenser.” RCA refers to its mics by “type,” while most current microphone makers use the term “model.” This trend is fol­lowed here. Finally, Altec, American, and Shure use the phrase “ribbon mic,” while Electro-Voice and RCA chose the term “velocity mic.” That custom is kept here as well. Thank you for visiting. Enjoy your stay.