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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Items 1-24 of 39

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  1. QUORUM PAAL  - PD-300 PAAL Sport - Personal Alarm 107db  Loud!
    QUORUM PAAL - PD-300 PAAL Sport - Personal Alarm 107db Loud!
    Special Price $12.98 Regular Price $16.95 As low as $9.98
    IN STOCK - MORE THAN 1,000 READY TO SHIP!

    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

    Learn More
  2. Peerless Audio Mfg. - KU45MR - 9514057 - Speakers. 8 Ohm. Size: 4-1/2" Square, 80 W RMS.
    Peerless Audio Mfg. - KU45MR - 9514057 - Speakers. 8 Ohm. Size: 4-1/2" Square, 80 W RMS.
    Special Price $14.98 Regular Price $32.50 As low as $4.98
    READY TO SHIP - ONLY 57 LEFT IN STOCK!

    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.

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  3. Schurter - SWM1 - 3-266 - Switch, Flush Rotary. Impedance Selector Switch, 1P3T (One pole 3 position) A-B-C. Panel Mount
    Schurter - SWM1 - 3-266 - Switch, Flush Rotary. Impedance Selector Switch, 1P3T (One pole 3 position) A-B-C. Panel Mount
    Special Price $12.98 Regular Price $18.50 As low as $10.98
    READY TO SHIP - ONLY 43 LEFT IN STOCK!

    Schurter SWM1 Rotary Impedeance Selectro Switch. 

    Contacts: 1P3T (One pole 3 position) A-B-C.

    Contact Ratings: 10Amp 250VAC/6.3Amp 250VAC. IP40

    Connection: Solder Terminals.

    Contact resistance <10 mOhm at 20 mV 

    Mount: Screw-on mounting

    Material: Thermosplastic, Black ULV-0

    Mech: Panel, single hole 0.777" (19.7mm) D, threaded.

    Panel hole: 24.5mm D x 2.1mm in front of panel.

    Note: Coin Operated, Flush.

    Approvals: VDE, UL, CE, IEC, CSAReach

    Alternates: P-H1701, CED-P-1701, 0033.40XX

    applications: Serieo equipment, Speakers, Voltage Selector, Impedeance Selector, 

    Replacement Impedance Selector Switch fits the following models: Deliverance One Twenty Head,

    Deliverance Sixty Head & Combo, Pittbull Ultra-Lead & One Hundred, Pittbull Hundred/CL, Hundred/CLX,

    Pittbull Classic Head & Combo, Pittbull Fifty/CL, Pittbull Fifty/ST Head & Fifty/Twelve Combo,

    Pittbull Forty-Five Head and Combo, Pittbull Super Thirty Combo, Two/Ninety/Two Power Amp,

    Two/Fifty/Two Power Amp, Twenty One Hundred and Classic Power Amp, 2150 Power Amp

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  4. ROGAN BROTHERS - 8-336 - Hardware, knob. For 1/4" shaft. Dual Bar, Guitar Audio  Amplifier
    ROGAN BROTHERS - 8-336 - Hardware, knob. For 1/4" shaft. Dual Bar, Guitar Audio Amplifier
    Special Price $12.98 Regular Price $14.50
    READY TO SHIP - ONLY 9 LEFT IN STOCK!

    ROGAN BROTHERS - 8-336 Hardware, knob. Guiart Audio Amplifier

    For 1/4" shaft,

    Bushing with two set screws.

    Metal Collett.

    Material: Heavy Plastic, Black. ABS

    Dimensions: 1-3/4" OD, 2 bars / ears that stick out 1/2" on each side.

    Inlay Silver top.

    Vintage New Old Stock 

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  5. INTERNATIONAL CO. - 95-1050 ABC VIDEO SELECTOR - ABC Video "F" conn. Selector
    INTERNATIONAL CO. - 95-1050 ABC VIDEO SELECTOR - ABC Video "F" conn. Selector
    Special Price $12.98 Regular Price $24.50
    READY TO SHIP - ONLY 8 LEFT IN STOCK!

    ABC VIDEO "F" Connector input and choice of A ..B ..OR C "F VIDEO" Output to TV

    75 Ohm Coax 

    for Easy Switching between three video sources.

    Use with VCR, TV antenna, Cable, TV Games or Video disc player.

     

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  6. ASTATIC - ASC650 - Audio, microphone. Head/Cover/Windscreen.
    ASTATIC - ASC650 - Audio, microphone. Head/Cover/Windscreen.
    $14.95
    Audio, microphone. Head/Cover only with windscreen. Dimensions: overall 1.419" D x 2.374" high. Lower 1/2 is actually 1.288" long, windscreen is actually 1.120" long. Threaded ID 0.782" (22.1mm) diameter at base. Learn More
  7. SONETRONICS - M80C/U - Microphone, dynamic. 24VDC 150 Ohm. Used.
    SONETRONICS - M80C/U - Microphone, dynamic. 24VDC 150 Ohm. Used.
    $9.98
    Microphone, dynamic. Military. 150 Ohm 300-3500Hz, 10 Dynes per square cm. With coiled stretch cord and 5 Pin circular connector. Used with Military radios and pa systems. A microphone which depends for its operation upon the generation of an electromotive force by the motion of a moving coil within a magnetic field. Water resistant. Note: Military NSN 5965-00-179-7762. Used/Removed from equipment. Learn More
  8. RCA - CBL-102 - Cable, audio. Flexible patch cable.
    RCA - CBL-102 - Cable, audio. Flexible patch cable.
    $10.00
    Cable, audio. Flexible patch cable. Length: 6 foot. RCA. Learn More
  9. Western Electric - 31N82  - Telephone Handset Element.
    Western Electric - 31N82 - Telephone Handset Element.
    Special Price $12.98 Regular Price $14.50

    Western Electric - 31N82 Telephone Handset Element.

    For Telephones.

    Dimensions: 1.642" D x 0.180" high.

    Overall 0.670" deep.

    Rare Vintage New Old Stock

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  10. Western Electric - 242CM - Connector, Audio. Antique / Vintage, Phone-jack 1/4".
    Western Electric - 242CM - Connector, Audio. Antique / Vintage, Phone-jack 1/4".
    Special Price $14.98 Regular Price $18.95 As low as $9.98

    Western Electric - 242CM - Connector, Audio.

    Heavily Insulated, Singly-Mounted Jacks. Solder-type terminals are arranged to accommodate two No. 19 B & S gauge wires. Arranged for use with a No. 310 or similar type plug.

    1/4-inch phone jack with integral mounting tab.

    Mates with a tip-collar-ring type (stereo) plug.

    There are 7 wirewrap connections on the rear.

    There are three normally closed contacts when no plug is inserted.

    All three open when the plug is inserted.

    One contact is isolated, one is connected to the tip and one to the collar.

    The jack mounts in a 0.450" clearance hole and is held in place by a screw through a nearby 0.156" hole.

    The jack extends approximately 3-1/4" behind the mounting panel.

    Western Electric Specification Sheet atttached.

    Vintage Genuine Western Electric Antique Phone Jack - New Old Stock.

    Proudly Made in USA

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  11. Western Electric - 328D - Connector. 600 Ohm, Dual Male 1/4 Plug Terminator.
    Western Electric - 328D - Connector. 600 Ohm, Dual Male 1/4 Plug Terminator.
    Special Price $12.98 Regular Price $14.50 As low as $8.98

    Western Electric - 328D - Connector.

    600 Ohm

    Material: Bakelite

    Genuine Vintage Western Electric - New Old Stock - Rare

    Dual Male 1/4 Plug Terminator.

    Learn More
  12. CUI Devices - GF1004X - Speaker. 8 Ohm 6-10 Watt, 145 Hz ~ 17 kHz, Package of 2.
    CUI Devices - GF1004X - Speaker. 8 Ohm 6-10 Watt, 145 Hz ~ 17 kHz, Package of 2.
    Special Price $14.98 Regular Price $16.50 As low as $12.98

    CUI Devices - GF1004X -  Speaker.

    Frequency Response: 145 Hz ~ 17 kHz

    S.P. Level: 93 (1W/0.5m) dB

    Housing Material: Metal

    Shape: Round, Square

    Weight: 73.7 g

    Impedance: 8 Ω

    Max Power Dissipation: 10 W

    Power Rating: 6 W

    Magnet Material: Ferrite

    Resistance: 8 Ω

    Termination: Solder Eyelets

    Beautiful 4" round speaker in a square mount.

    Dimensions: 4-1/16" square x 1-1/3" deep, with 4-5/8" centers. (102.4mm X36.5mm X 116.60mm Centers)

    Contacts on rear: (2) 3/16" male quick connect terminals.

    Package of 2.

    Manufactured in Taiwan.

    Alternates: Mouser 490-GF1004, Digi-Key GF1004-ND

    Learn More
  13. S - 2N174 - Power Transistor, PNP. T)-36. New Vintage Component.
    S - 2N174 - Power Transistor, PNP. T)-36. New Vintage Component.
    Special Price $14.98 Regular Price $23.95
    READY TO SHIP - ONLY 9 LEFT IN STOCK!

    S - 2N174 Power Transistor, PNP.

    Vintage Historic Power Transistor that came out in the Mid-1950s for the conversion of auto radios using tubes to semiconductors. Alos used in Military Aviation. Rare New Component  

    Max voltage: 60VEBO 80VCB.

    Max current: 15Amp emitter current (continuous),

    Base current 4Amp.

    Package: TO-36 encapsulation.

    Power Rating: 150W

    Note: Germanium.

    New with Delco New Hardware Kit 7274633.

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  14. Koss - 8-704 - Audio. Stereo headset with a 3.5mm plug.
    Koss - 8-704 - Audio. Stereo headset with a 3.5mm plug.
    $9.99
    Audio. Stereo headset, adjustable with a 3.5mm plug, 32 Ohm, 4' shielded cord 20-20,000Hz. Learn More
  15. KNOWLES ELECTRONICS,LLC - NR-3160 - Close-talking electret microphone - 2500 Ohm
    KNOWLES ELECTRONICS,LLC - NR-3160 - Close-talking electret microphone - 2500 Ohm
    $12.00
    Close-talking electret microphone - 2500 Ohm - 2 wire termination - sensitivity -52 dB +/- 3 dB Learn More
  16. CINCH - P-202-B - Cinch Jones Socket. M 2 Pin, Round Metal. Series 200 /202
    CINCH - P-202-B - Cinch Jones Socket. M 2 Pin, Round Metal. Series 200 /202
    Special Price $14.98 Regular Price $18.95 As low as $8.98
    READY TO SHIP - ONLY 71 LEFT IN STOCK!

    CINCH - P-202-B - Connector, Cinch Jones Socket Series 200 /202.

    CINCH P-202-B flat blade type plug connector. Also known as "Jones" type connector. This plug has 2 contacts. Contacts plating: Brass, Cadium Plated.

    200 series P-202-B 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. 

    Status: Discontinued

    The 202 Series make ideal Microphone cable connections

    Housing Gender: Plug.

    Contact Gender: Male.

    Circuit Count: 2

    Thread: 3/4 - 27 

    Body Material: Brass, Nickel Plated

    Connections: Solder Eyelet(s)

    Insulation Material: Phenolic (Phenol Formaldehyde).

    Feature: Flange

    Mounting Type: Panel, Threaded Mount, Round Metal.

    Applications: SAudio, Microphone Cable connector. 

    Made in USA 0 Rare - Difficult Connector to Find

    Learn More
  17. ASTATIC - VTC41818-1 - Transducer, audio. Electromagnetic.
    ASTATIC - VTC41818-1 - Transducer, audio. Electromagnetic.
    $11.88
    Transducer, audio. Electromagnetic. Dimensions: approximately 0.75 x 0.5 x 0.4". Yellow tape wrapped with 3 metal plates and 3 wires. Made for either Astatic Microphone or Conneaut Audio Devices. Learn More
  18. ASTATIC - CAD1036A - 435790000 - PreAmp PCB 1-11/16 x 1-7/16"
    ASTATIC - CAD1036A - 435790000 - PreAmp PCB 1-11/16 x 1-7/16"
    Special Price $13.98 Regular Price $24.50

    ASTATIC - CAD1036A 435790000 PreAmp PCB.

    The trusty MC33178 (and its quad version MC33179) is a reasonably powerful part (up to 80 mA source, 100 mA sink) with usable GBW and slew rate specs (5 MHz, 2 V/µs) that runs at a puny 420 µA per amplifier. It is particularly recommended for telephony applications, and indeed, a unity-gain follower driving 20 kHz at 2 Vpp into 600 ohms at 0.024% THD sounds hardly awe-inspiring. The npn-only AB output stage isn't too bad, but its symmetry is inherently limited, and it would have to be running at very small quiescent current. Performance should much improve with a few mA worth of Class A bias. The emitter follower on the sourcing side seems more trustworthy than the common emitter circuit on the sinking side, as it would always keep compensation capacitance well away from the outside world and seems to have slightly lower output impedance as well.

    Uses MC33178P DIP (Discontinued)

    White/Black/Red In and Out.

    Dimensions: 1-11/16" x 1-7/16".

    New Old Stock

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  19. Sanyo - STK024 - IC, audio. AF Power amplifier 20W  to 30W.
    Sanyo - STK024 - IC, audio. AF Power amplifier 20W to 30W.
    Special Price $9.98 Regular Price $12.50
    IC, audio. AF Power amplifier 20 watt to 30 watt minimum. Case: 10 Pin power Sip, thick film hybrid. New. Listed as Generic Manufacture possibly a Sanyo product. Learn More
  20. Unidentified MFG's Logo - MS-177 - Full Range Speakers. 8 Ohm 5 watt, enclosed.
    Unidentified MFG's Logo - MS-177 - Full Range Speakers. 8 Ohm 5 watt, enclosed.
    Special Price $9.98 Regular Price $14.50
    READY TO SHIP - ONLY 38 LEFT IN STOCK!

    MS-177 - Full Range Speaker, Enclosed.

    8 Ohm 5 watt 4",

    Enclosed, with an attached 18' cord to a 1/8" (3.5mm) Male Mono Jack Plug.

    Surface Mounting with Adjustable Tilt Bracket.

    Size: 4-1/3" sq x 3" deep.

    New Old Stock

    Made in Taiwan

    Learn More
  21. STK Electronics Inc - STK4161II - STEREO AMP
    STK Electronics Inc - STK4161II - STEREO AMP
    Special Price $9.97 Regular Price $13.00
  22. STAR - PMB03 - Audio, alarms and buzzers. 3V.
    STAR - PMB03 - Audio, alarms and buzzers. 3V.
    $9.99
    Audio, alarms and buzzers. 3VDC. Mount: PCB. Learn More
  23. SONALERT - SC24 - Audio alarms and buzzers. 20-30VDC.
    SONALERT - SC24 - Audio alarms and buzzers. 20-30VDC.
    $9.99
    Audio alarms and buzzers. 20-30VDC.Dimensions: 1.465" D round x 0.635" above board. Mount: PCB. More info: http://www.mallory-sonalert.com/specifications/SC24.PDF Learn More
  24. Nortronics - W2R8N - Audio Cassette Head Mechanism and Assembly
    Nortronics - W2R8N - Audio Cassette Head Mechanism and Assembly
    Special Price $12.98 Regular Price $24.50 As low as $9.98
    READY TO SHIP - ONLY 64 LEFT IN STOCK!

    Assembly with 1/2 track 1/4" Nortronics W2R8N Cassette Head used in Instrumentation Recorders.

    Since the very early days of analog tape recording, Nortronics has been the most widely known and respected head manufacturer in the world. Nortronics heads have been the choice of many professional and consumer tape recorder manufacturers since 1957. Any Nortronics audio head can be used for mini-digital application.

    Assembly is 5"long x 1.75" x almost an inch thick.

    Sold for well less than value of the Head alone.

    Assembly alos contains (4) Bourns 50K trimpots and an expensive Honeywell 111SM2T MicroSwitch with Roller SPDT-5Amp.

    Heavy Duty Commercial Assembly

    Magnetic Head W2R8N Specifications

    Tape Width: 0.250", Number of Tracks: 2, Number of Channels: 2

    Track Width: 0.020" Center to Center: 0.071", Gap Space: 0.5 Mil

    Inductance: 10 Mhy, Resistance: 39 Ohms

    Saturation Current: 2.7 mA, Write Current: 4.0 ma

    Read Output: 4.2 P-P 

    Weighs nearly 8 ounces.

    Removed from Equipment.

    Learn More
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