Audio
Audio Electronic Parts
At Electronic Surplus, we distribute the best audio surplus products on the market. From speakers and cables to alarms and buzzers, our selection of audio electronic parts is almost endless—if you're looking to buy overstock electronics, you’ll be able to find exactly what you need. With equipment from trusted manufacturers like Bose and Hitachi, you can have confidence in the quality of our inventory.
Some of the audio electronic parts that we carry are brand-new, while others are slightly used. Upon arrival, all of our used audio surplus products are carefully inspected to ensure that they’re still working properly. You can also request an audio device if we don’t currently have it in stock.
Browse our selection below.
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PROJECTS UNLIMITED PUI - AT-121 - Audio, PZT. Miniature Piezo Audio Transducers. Package of 10.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
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ALCOKNOB - KNP-900B 1/8 - Equipment, knob. For 1/8" shaft, Stereos, Amplifiers, Instrumentation.Special Price $5.98 Regular Price $8.00IN STOCK - MORE THAN 100 READY TO SHIP!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
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ACME - 6-349 - Hardware, Knob. 1/4" Flattened D Shaft. Stereo , Control, Volume, HI-FI, Amplifier. Package of 2Special Price $6.98 Regular Price $8.50IN STOCK - MORE THAN 1,000 READY TO SHIP!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
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JENSEN - 25CV4 - Transformer, audio. 25VCT line transformer.Special Price $6.98 Regular Price $9.50IN STOCK - MORE THAN 100 READY TO SHIP!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.
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Unidentified MFG - 7-068 - Cable, audio. RCA male to male. Package of 10.$6.00Cable, audio. RCA male to male. Shielded cable. Length: 13". Color. black. Package of 10. Learn More -
ASTATIC - DM60 - Audio, Microphone Cartridge Element. 400 Ohm.READY TO SHIP - ONLY 98 LEFT IN STOCK!DM60 Audio. Microphone Cartridge.
400 Ohm Coil.
Material: Nylon Case.
Dimensions: 0.985" OD x 0.8" Length.
Color: Beige.
Purchased from Astatic Factory following Shutdown. Over 200 Sold.
Vintage New Old Stock
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CTI Audio - 05114 - Audio, Microphone Element, s.Special Price $6.98 Regular Price $9.50READY TO SHIP - ONLY 4 LEFT IN STOCK!CTI Audio 05114 Audio, Microphone Elements.
Approximate dimensions: 0.553" OD x 0.838" high.
No other information available.
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Belkin - 75-210B - Coiled 6.35mm (1/4") Male/Female Stereo Audio Headphone Shielded Extension Cord.Special Price $6.98 Regular Price $8.95READY TO SHIP - ONLY 12 LEFT IN STOCK!Belkin - 75-210B - Coiled 6.35mm (1/4") Male/Female Stereo Audio Headphone Extension Cord.
Cable: Quality TRS Male Stereo to Female Jack Extension, Shielded Stretch Cord.
Connectors: 6;35mm Male to 6.35mm FemaleMolded Strain Reliefs
Conductor Material: Copper
Length: 5 foot Coiled extends to approximately 14 Feet
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Applications: Headphone or ear bud extension and remore location for easier connectivity to other equipment. -
Unidentified MFG - 42705-0000 - Audio, microphone cartridge.$5.95READY TO SHIP - ONLY 1 LEFT IN STOCK! -
Mallory/Electrosonic - PT-1550W - Audio alarms and buzzers. Piezo speaker 4KHZ, 0.5%$6.95Audio alarms and buzzers. Piezo speaker 4KHZ, 0.5%. Plastic enclosed 16.7mm (0.657") D x 4.1mm (0.164") thick with 2-conductor 3-1/2" leads. Manufactures logo is a Capitol M with a horizontal line through it. Learn More -
CTI INDUSTRIES - 433920000 - Audio. 3.5mm Stereo Jack. Package of 10.CTI INDUSTRIES - 433920000 Audio, Connectors.
3.5mm stereo jack.
Dimensions: approximately 12mm wide x 14mm deep x 8.4mm high.
Package of 10.
Alternate: 35RAPC2BHN2
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AMPEREX - 114N4P - Transistor, Germanium NPN. Vintage Metal encased component.IN STOCK - MORE THAN 100 READY TO SHIP!AMPEREX - 114N4P Transistor, Germanium NPN.
Package: Metal encased
Dimenswions: 7mm sq x 15.5mm tall
3 wire leads.
Alternates/Cross: ECG103A, SK3835
Vintage Transistor Radio Component - New Old Stock
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ALCOKNOB - KNP-900A 1/8 - Hardware, knob. For 1/8" shaft.Special Price $5.98 Regular Price $8.00READY TO SHIP - ONLY 47 LEFT IN STOCK!ALCO KNOB - KNP-900A Series KPN Knob.
Status: Discontinued
Fits 1/8" shaft, with one set screw.
Heavy, Silver. - Stright Knurled
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
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PFANTONE - CH-14BP4WH - Dual gang with 4 binding posts.Special Price $5.98 Regular Price $7.50Audio/Video accessories. Dual gang wall plate with 4 binding posts. Color: white. Contacts: 24 karat gold plated. Learn More -
HITACHI - HA1392 - IC, Audio. Power amplifier.Special Price $6.98 Regular Price $8.50HITACHI - HA1392 - IC, Audio. Power Amplifier.
Voltage: 12V @ 4.3 watt or 15V @ 6.8 watt.
Resistance: to 4 Ohm.
Package: 12 Pin Single Inline SIP.
Dimensions: 30mm V 16mm X 5mm
New Old Stock
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TRW CINCH Jones - P-304-AB - Connector, Cinch. Industrial Plug, Male 4 Pin, AB.Out of stockTRW CINCH Jones - P-304-AB Connector, Cinch.
The 300 series P-304-AB plug is designed for light and medium duty. This rugged blade "Jones" type connector offers extremely high durability and reliability. Designed for applications that need high current capacity and require frequent mating and un-mating.
Housing gender: Plug.
Contact gender: Male.
Circuit Count: 4 Polarized
Contacts: Brass.
Rating 250V, 10 Amp
Mounting type: Panel, Mount, Flange. Cadmium
Dimensions: Length 0.71" Length by 0.69" Width, Height 1.1"
Termination: Solder Eyelets
Alternate: Newark 69H7650
Applications: Commonly used as the power connector on Bearcat, Heath, Kenwood, Realistic, Regency, Robyn, Sears, SBE, Yaesuother radios. Popular as power plug on 1960's & 1970's vintage Police Scanners, CB Radios, & Amateur Ham Radios
Industrial Ratings: UL Recognized-file E170218 (UL 1977), E130965 (UL1863); CSA-LR31996.
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CTI audio / Astatic - 46101-0000 - Microphone Element.Special Price $6.98 Regular Price $8.50CTI Audio / Astatic - 46101-0000 Microphone Element.
Approx Size: 1.148" OD x 2.431" H.
Made for CTI Audio Inc (Now Astatic).
Specifications not available.
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SWITCHCRAFT - 2504M - Connectors, 4 pin male.$6.95Out of stockAudio, microphones. Connectors, 4 pin male. Old microphone type. Learn More -
SANYO - LC7537N - IC, Electronic Volume Control, 42 Pin DIP.IN STOCK - MORE THAN 100 READY TO SHIP!SANYO - LC7537N IC. Electronic volume control system for audio equipment.
The LC7537N is an electronic control LSI capable of electronically controlling the volume, balance, loudness, fader, bass, and treble functions individually with fewer externally connected component parts.Case: 42 DIP, Bulk packaged
Genuine Vintage Sanyo New Old Stock
Alternate: EN2169C CMOS LSI LC7537, 7537AN, 7537NE
Additional Information: https://dtsheet.com/doc/309368/sanyo-lc7537n
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Philips - TDA7052N - IC, audio. Power amplifier. 1 Watt.$6.95IC, audio. Power amplifier. 1 Watt. Package: 8 Dip. Learn More -
Philips - TDA6103Q - IC, audio. Triple video output amplifier.READY TO SHIP - ONLY 44 LEFT IN STOCK!Philips - TDA6103Q IC, audio. Triple video output amplifier.
The TDA6103Q includes three video output amplifiers in one single in-line 9-pin medium power (SIL9MP) package SOT111BE, using high-voltage DMOS technology, intended to drive the three cathodes of a color CRT
Case: SIL9MP, 9 Sip.
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PFANTONE - CH-14F3WH - Single Gang White Wall Plate w/3F Type Jack, 24K Gold Plated$6.00
Single Gang white wall Plate with 3 F Type Jacks 24 karat gold plated (MANUF. PLANTONE)
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PFANTONE - CH-13BP4IV - Dual gang with 4 binding postsSpecial Price $5.98 Regular Price $7.50Dual gang with 4 binding posts nickel plated, ivory wall plate Learn More -
Mallory/Electrosonic - PT-1550W-100 - Audio alarms and buzzers. Piezo 4KHZ, 0.5%.$5.95Audio alarms and buzzers. Piezo speaker 4KHZ, 0.5%. Plastic enclosed 16.7mm (0.657") D x 4.1mm (0.164") thick with 2-conductor 3-1/2" leads. Learn More
