Audio

PROJECTS UNLIMITED PUI - AT-121 - Audio, Miniature Piezo Audio Transducer.

PUI Audio, a Projects Unlimited Company, is a leading developer, manufacturer and supplier of quality audio devices and components including indicators, transducers, speakers, microphones and sirens.

Piezo Ceramic Audio Tranducer, 5kHz, 3-28Vp-p 8mA @ 12VDC 85dBA @ 12vp-p.

Resonant Frequency: 4500 HZ +/-500 Hz.

Operating Voltage: 3 - 28 Vp-p

Rated Current: 13 mA

Capacitance: 17,000 pF =/-30% 

Current Consumption at 12VDC (Typical): 8 mA

Sound Pressure Level (dBA) at 1" or 30cm:  95 at 12Vp-p.

Temperature Range: Operating -30 C to 85 C, Storage -40 C to 95C

Case: Enclosed 24mm Diameter, 34mm with feet. (3) 45mm-wire leads.

Note: Wire Lenghts are 45mm not  120 as listed on print.

Mount: Flange Mounting (See Attached Diagram)

Wire: 32 AWG Stranded

Wire Color Code: Red Positive (+), Black Negative (-), Blue (Feedback Connection)

Weight: 7.4 grams (0.106) oz

Case Material: ABS. Black

Package of 10.

Alternate: Mouser 490-CPE-121, CPE-121

Made in Taiwan

KNOBS INC - Berkeley - 144010-2 - Hardware, Knob Cap.

Slide-on Mixer/Fader Caps

Upgrade the cosmetics on Older Studio Graphic Equalizers.

For Slide Potentiometers having standard rectangular metal shaft measuring 0.155" x 0.047" (4mm X 1.2MM).

Material: Black Anodized Aluminum Shell, Silver Lined Cap with Nylon Insert

Overall Dimensions: 0.355" x 0.21" x 0.8" Long (9mm X 5.37mm X 20.35mm).

Rectangular / Oval Ends, Very Sharp.

New Old Stock

Applications: High End Audio Multimix and many other model Audio Equalizer Consoles, Instrumentation, Amplifiers or DJ Equipment.

Check shaft measurement, Used on some Moog, Rogue, Behringer, ALPs, Tascam, Akai, Mackie, Yamaha, Soundcraft, Pioneer equipment.

Proudly Made in USA

ALCO KNOB - KNP-900B  Series KPN Knob.

Status: Discontinued

Fits 1/8" shaft, with one set screw.

Heavy, Silver. - Stright Knurled

Matrial: Black Anodized Aluminum  with Vertical Pointer.

Dimensions: 0.931 OD x 0.54" high. (33.6 X 13.7 mm)

Applications: Stereos, Amplifiers, Instrumentation. Vintage - Newer Used - Genuine Alco - New Old Stock

ACME Hardware, knob.

For 1/4" flattened shaft.

Black Band 0.74" around it for gripping easily.

Material: Attractive Chromed Aluminum.

Dimensions: 0.62" D x 0.90" high.

Color: Silver.

Note: The orientation of the indicator line is straight up from the center of the 1/4" (D) circle.

Upgrade your Old System with High Quality New Old Stock Knobs.

Applications: Stereos, Amplifiers, Instrumentation.

Vintage - New Old Stock 

Package of 2

iSPY007 - SPY EAR - Ear Secret Sound Amplifier Device.

Almost Sold Out- "The Original Super Ear Spy Lisening Device"

What is this amazing device? This great little gadget is similar to the "disposable hearing aid" you've may have seen advertised on television. It is very small and inconspicuous, yet it can amplify sounds up to 40 or more decibels (that means you will be able to hear some things over 1000 times better!). It is a fun toy for kids, and a useful tool for adults!Just plug in the earphones and turn on the device, adjust the volume to your comfort level, and you are ready to go! You can wear it at your side and amplify all sounds around you, or you can aim the microphone at a source to amplify specific sounds! Batteries not included (Removed).

Description Item # SPM8757405026 Model # SPYEAR

"This device is a powerful secret sound amplifie with built-in high sensitive microphone.

"With this device :
You can listen clearly to people talking secretly.
You can listen to the far away sound of the animals while hunting.
You can spy on people in another room by listening to their conversation.

VSQ0055 - VFH Matching Box, Coaxial Transformer

Transformer, coaxial.

Input 75 Ohm to output 300 Ohm. 

VHF/UHF/FM & Any Video

Made in Japan

Quality Constructed Vintage - New Old Stock

BE-010 Microphone Windscreens

On stage or in a recording studio, a microphone is the most important device you need to capture vocals and instruments. Whether you're cutting your hit single or rocking out in front of a large crowd, your microphone projects everything you do, so having good quality mic accessories just makes sense. Windscreens and grilles are small, lightweight and portable components that can really impact the sound of your performance. Windscreen and grilles are covers that improve the sound quality of a microphone. Normally a windscreen is made from foam and a grille from metal. They act as a filter to prevent popping, breath sound, moisture and wind noise from reaching your mic.

Dimensions: 1-5/8" tall with a 7/16" Diameter Opening and an Inside Depth 1-1/3"

High Quality Multi Foam is ideal for reducing wind, sibilance and pop noise. 

Slides on Easily.

(Available in Black or Brown)

Eaton - Wire PRO - Amphenol - CDM Electronics - 91-PC4M Microphone Connector, Din Audio.

Chrome plated machined brass shells with threaded coupling and black phenolic dielectric. Panel receptacle mounting hole 27/32" diameter. Maximum chassis thickness 1/8". Cable Diameters: 3 contact 0.281 max. 4-6 contact 0.385" max. Rated for 600 volts. Male contacts rated for 5 amps. 

Series: 91

Housing Gender: Plug.

Contact Gender: Male.

Contact Rating: 5 Amps

Voltage Rating: 600 V (RMS)

Body: Chrome Plated Machined Brass Shell

Breakdown Between Terminals and Ground: 2000 v 

Circuit Count: 4 pin Microphone.

Mounting Type: Panel.

Connection: Solder.

Angle: Straight

Applications: CB Microphones.

Mates with 91-MC4F1. 

New Old Stock 

Mates with 91-MC4M

Connector with washer and Nut. 

Alternate P/Ns: Newark 39F1292, NSN 5935-00-615-3884

Made in USA 

Unidentified MFG - 7-108 - Audio, RF.

The RCA connector was invented in the 1940s and was first used to connect an amplifier to a phonograph. They are sometimes referred to as phono connectors due to this original purpose, even though they can be used to carry both audio and video from many different devices. 

Cable: RCA Male Straight to RCA Male, Right Angle.

Molded Ends

Braided Shield

Length: 8".

Applications: Perfect solution for applications having restrictive space requiring a Molded Right Angle RCA connector. Customer reported example: Heathkit SP2A Preamp Inputs

Hardware, Control /Instrumentation Knob with Pointer Indicator.

Fits Standard 1/4" (0.250") Splined ID Shaft.

Push-on Design for Convenient Secure Attachment

Bar Skirted with Indicator Pointer.

Material: ABS Black Plastic.

Dimensions: 0.98" OD x 0.60" high.

Applications: Control Devices (potentiometer, tuner, etc.) on a Radio, Amplifier, Testing Equipment or Musical Instruments, etc.

Vintage - New Old Stock

F20DP60-55F-D Speaker.

8 Ohm.

Light weight.

Depth: 2-1/4" maximum (2" max behind panel).

Some may have a 7 foot, 2 conductor cable with a male RCA plug on one end.

Speaker dimensions: 7-1/8" D, overall with frame is 8".

Cross: 1713-3010.

Note: Package of 2.

PRIMO - EM-47A Audio, Microphone.

From live concert sound to recording a movie, pro-audio microphones are critical to the clarity of the sound. Primo's products are use inside many major brands from vocal mics to shotgun camera mics, our quality is perfect for professional and amateurs alike.

Electric Condenser Microphone Cartridge.

Omni-directional.

Highest quality, very high output into 200Meg Ohm to 500Meg Ohm, using FET AMP with source follower.

Has no internal preamps.

Can withstand very high S.P.L. (sound pressure level over 90db?).

Dimensions: 0.828" (21mm) D x 10.5mm high.

Threaded.

QUORUM PAAL - PD-300 PAAL Sport - Personal Alarm Security, Loud.

PAAL Sport 107db Personal Alarm with Door Clip and Pull Pin.

The Sports PAAL is a high quality weatherproof (Waterproof) personal attack alarm, designed to withstand outdoor activities, repels moisture and offers the owner a true sense of protection.

Immediately activated by pulling the special pin/cord or by the included door / window N.O. switch opening up. Deactivate it by replacing the special pin to it's original position.

Battery 9V required, not included.

Waterproof

Approximate Dimensions: 2.75" x 2" x 1" (14.22mm X 11.69mm X 4.32mm).

Weight: 226.8 Grams

Color: Yellow.

Note: Without Battery

PANASONIC WM-034CY - WM-034 - Audio, Microphone Cartridge.

Omnidirectional Electret Condenser Cartridge.

Part Status : Discontinued

Electret Condenser, Omnidirectional 42db +/-3db.

Frequency Range: 20Hz to 16kHz.

Impedance: 2.2K Ohm. (2200 Ohms)

Sensitivity: -62+/- 3dB

Signal Noise Ratial: 60 dB

Voltage: 4.5VDC, Voltage Range: 4.5 to 10V  (Vs)

Current: 800uA.

Output Type: Analog.

Dimensions: Circular 9.7mm Diameter x 6.7mm thick. (0.382" X 0.264")

Through hole Radial PCB mount, 2.54mm (0.100") standard pin spacing.

Termination: Solder Pads.

Applications: Useful for almost any type telephone and other applications.

Alternates: P9992-ND, CTI 42059, YPM-CH022, V79CH

Made in Japan

Line Electric - MD-120VAC-5VA Audio, alarms and buzzers.

Electromechanical buzzer 120VAC, 5VA.

Shock hazard.

Dimensions: 0.9" D x 1.7" long x 1".

Mount: open frame.

Applications: toy train gate warning.

JENSEN - 25CV4 Transformer, Audio.

Professional Series "Constant Voltage" Transformer specially designed for "constant voltage" distribution system.

Input (Primary): 25 Volt balanced or unbalanced line

Output (Secondary): 8 - Ohm loudspeaker load

Power to Speaker: 4, 2, 1/2, 1/4, 1/8 watts

Frequency Response: +/- 1 dB, 50 - 10,000 Hz

Useful Frequency Response: 30 - 20,000 Hz

Total Harmonic Distortion: 1/2% Max. 100 - 15,000 Hz

efficiency: 80% on 4 watt setting

Nominal Core Size: 5/8" X 5/8"

Overall Dimensions: 2 7/8"Wide, 1 9/16" Heights, 1 3/4" Depth

Mounting Holes 1 3/16" diameter on 2 3/8" centers

Coil/Coil/Core Insulation: 500 volts RMS, 60 Hz

Net Weight: 9 Oz

Vintage Genuine Jensen New Old Stock

Cross: Z3631.

ECS INC - ZTA-3.58MG - Filter/Resonator.

Ceramic Resonator 3.58MHz,

Impedance: 30 Ohm. Tolerance: 0.5%.

Supply Voltage: 100V

Dimensions: 10mm wide x 5mm deep x 7.5mm High.

Package: 2 Pin Radial Leads.

Lead Spacing: 5mm.

Note: Extended Temperature Range.

Additional Information: https://ecsxtal.com/store/pdf/ZTAR.pdf

Package of 10.

Edwards Signaling Products - CS1088 - 876-N5 - Audible Alarm.

Security horns, 103dB loud,

120VAC 0.13A 14VA 150-ohm coil.

Case: 4.5" square.

Enclosures sold separately. Attached pictures show what is included.

Weight: 1.4 lbs.

UPC 093871220332

Custom Connector. RCA Phono Male to RCA Phono Male.

One straight Connector and One Right Angle on a White Shielded Teflon Cable.

Length: 12".

New Old Stock

Package of 3.

ASTATIC - T2M-914 Replacement Omnidirectional Audio, Microphone /Speaker.

Speaker / Microphone Matches Virtually any Transmitter.

Micro Switch with Positive Snap Action.

Rotable Spring Clip on Back.

Power Requirements: 3 to 12 VDC.  

Quality Electret Cartridge. 

Lightweight Durable Noryl Housing.

Dimensions: Approximately 2" wide x 3" high x 1.3" D.

Complete with 6 wire Neoprene coil cord, extends to 5-1/2 feet. 

Includes Hook-up Instructions. 

Electret microphones are a type of electrostatic capacitor-based microphone which eliminates the need for a polarizing power supply by using a permanently charged material.

Proudly Made in USA

Vintage RCA Panel Mount 2 Way Female Audio Coaxial Connector Socket TV Stereo

Horizontal Panel Mount 2 Way RCA Female Jack Connector Sockets for Various Electronic Connections.

Panel Mount used in various Electrical Appliances, such as TV, Monitor, DVD, Intercom, Computer, Speaker, etc.

Phenolic Chassis Mount Strip W/Solder Terminal and Ceramic Insulator

Overall Length:  1.50" (38.0 mm)

Overall Depth:  .845" (21.5 mm)

Mounted Height: 1.0" (25.5 mm)

Vintage New Old Stock

Note: Ceramic insulator can be removed to repair used equipment.

Proudly Made in USA

FV272/1740 - Audio, Microphone Element, Dynamic.

Element Miniature.

Dimensions: Approximately .764"X .50" X .36" (19.5 X 12.7 X 9.0 mm)

Strong on Higher Frequencies.

Researching this element to confirm if it is the Heil HC-5 that is in high in demand by Ham Radio Enthusiasts

Note: Purchased from Astatic following their plant closure.

Made in Taiwan

Peerless Audio Mfg. - KU45MR - 9514057 - Mid-Range Speaker, 4 1/2" Square, ALNiCo Magnet

Founded in Denmark in 1926, Peerless has been delivering high-quality audio solutions ever since, and we’ve used our decades of design and manufacturing expertise to create a line of premium professional drivers and amplifier modules that deliver truly superior sound. From our FEA-optimized motor design to our Kevlar-loaded, non-pressed paper cone, each component has been thoughtfully designed to withstand the rigors of professional applications.

Speakers made with ALNiCo magnets are often raved about as the vintage-certified choice of true tone hounds. The fact that the alloy used to make them is more expensive—thanks to some of the precious metals it includes. ALNiCo speakers are made with magnets containing aluminum, nickel and cobalt. 

Mid - Range Speakers.

8 Ohm Coil

Doped surround and 91.5 dB 1 Watt 1 Meter

Heavy ALNiCo Magnet

Kevlar Fiber-Reinforced Non-Pressed Paper Cone

High Temperatue Voice Coil

Size: 4 1/2" Square

Mount: 3 1/2"

Extremely rare and hard to find in any condition

Note: Similar in Characteristics to the well known KO 40 MRF Midrange

Vintage - New Old Stock  

Alternate: 95140679.