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Mfg. Part # Description Condition Price Buy
Texas Instruments
TPA301DGN
IC, audio. Mono power amplifier 350mW. Package: 8 MSOP SMD. New (un-used) $1.53
Line Electric
BD1-Buzzer
Buzzer 20-24VDC, 28-34VAC. New (un-used) $9.00
Line Electric
BD1-Buzzer
Buzzer 12-14VDC, 14-18VAC. New (un-used) $9.00
Unmarked
MG-3551KE
Speakers. 3.2 Ohm mylar cone, 1" voice coil. Size: 4". Note: Gently used. Used $2.50
Projects Unlimited Inc
AT-121-LW45
Audio, PZT. Piezo tranducers, 5kHz, 3-28Vp-p 8mA @ 12VDC 85dBA @ 12vp-p. No internal electronics - schematic for driving circuit available. Case: Enclosed 24mm D, 34mm with feet. (3) 45mm-wire leads. Package of 50. In Mfr Packaging $8.99
Projects Unlimited Inc
AB2040S
Audio, PZT. Piezo ceramic bender. Resonant frequency: 4000 ± 500 Hz. Input voltage: 30 Vp-p. Resonant impedance: 350 Ohm. Capacitance: 25,000 ± 30% pF, Direct CMAS or TTL drive, no feedback electrode. Dimensions: 20mm D x 0.2mm thick. Specification sheet available upon request. Package of 100. New (un-used) $7.99
Audiosears Corp
1583
Audio, microphone. Handset carbon elements 250~3500Hz. Impedance: 50 Ohm. Output: 20-dynes/sq cm. Operating DV voltage: 49V, 20-35mAmax. Military NSN 5965-00-651-4350. Dimensions: 1.8" D x 0.6" thick. AUDIOSEARS 1583,  ROANWELL CORP 051-000-001-000. New (un-used) $5.87
ECS Inc International
ZTA-3.58MG
Filter/resonator. Ceramic resonator 3.58MHz, 30 Ohm. Tolerance: 0.5%. Dimensions: 10mm wide x 5mm deep x 7.5mm high. Package: 2 Pin radial leads. Lead spacing: 5mm. Note: Extended temperature range. Package of 10. From: 500/manuf bag.  Package of 10. More info: http://www.ecsxtal.com/store/pdf/ZTAR.pdf In Mfr Packaging $3.00
Unmarked
BE-010
Audio. Microphone windscreen. Dimensions: 7/16" D opening x 1-5/8" tall. Inside depth 1-1/3". Available in black or brown.  Un-used but old $2.99
Unmarked
42391-0000
Audio. Microphone windscreen. Dimensions: 1" wide opening x 2-1/8". Inside depth of 1-1/2". Color: black.  Un-used but old $2.99
Panasonic
WM-034CY
Audio, microphone cartridge. Electret condenser, omnidirectional 42db +/-3db. Frequency range: 20Hz to 16kHz. Impedance: 2.2K Ohm. Sensitivity: 20Hz ~ 16kHz. Voltage: 4.5VDC. Current: 800uA. Output type: analog. Dimensions: circular 9.7mm D x 6.7mm high. Termination: solder pads.  New (un-used) $4.00
Astatic
MC559
Audio, microphone. Element. Dimensions: 26.8mm mount, overall 30.2mm (sligthly rounded). Contacts: brass tab with solder terminals. In Mfr Packaging $12.50
Astatic
T2M-914
Audio, microphone. Speaker - microphone to match virtually any transmitter, electret cartridge, micro switch with positive snap action, 3 to 12VDC. Dimensions: approximately 2" wide x 3" high x 1.3" D. Complete with 6 wire neoprene coil cord, extends to 5-1/2 feet, rotatable spring clip on back, and hook up instructions. On Sale. Un-used but old $9.99
Astatic
40-353
Audio, microphone cable. XLR/3F termination at one end and 1/4" mono phone plug at the other end.  Internal step-up impedance matching transformer at the phone-plug end. Matches low-imp.microphone to a medium-to-high imp.amplifier input. Astatic BLUE LINE Pro-series. Length: 25 foot.  New (un-used) $10.00
Unmarked
SPY EAR
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 guaranteed. List $5.95 - ON Sale. New (un-used) $2.99
Edwards Signaling Products
CS1088
Alarms. Security horns, 103dB loud, 120VAC 0.13A 14VA 150-ohm coil. Case: 4.5" square. Enclosures sold separately. Weight: 1.4 lbs. New (un-used) $19.95
Unmarked
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: Please call for sale price: 2 Set / $9.50 USD. New (un-used) $5.95
Quorum
PD-300 PAAL Sport
Security, personal. PAAL Sport 107db personal alarm with door clip and pull pin.The Sports PAAL is a high quality weatherproof 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. Approx: 2-3/4" x 2" x 1". Color: yellow. In Mfr Packaging $9.95
Unmarked
MS-177
Speakers. 8 Ohm 5 watt, enclosed, with an attached 18' cord to a 1/8"male mono plug. Surface mounting with adjustable bracket. Size: 4-1/3" sq x 3" deep. In Mfr Packaging $9.95
Quam-Nichols Co
25A07Z45K
Speakers. 45 Ohm, 150Hz to 12kHz, 2 watt, voice coil 9/16". Size: 2-1/2" 4-hole square mount. Un-used but old $3.95
Custom
8-366
Connector. RCA phono male to RCA phono male. One straight connector and one RA, on a white shielded teflon cable. Length: 15". Package of 3.   New (un-used) $3.00
Unmarked
7-108
Audio, RF. Cable: RCA male straight to RCA male, right angle. Length: 8". New (un-used) $0.75
Primo
EM-47A
Audio. Electric condenser microphone cartridge, omni-directional. High quality. Has no internal preamp. Can withstand very high S.P.L. Mount: threaded. Dimensions: 21mm D.  New (un-used) $24.95
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. New (un-used) $1.79
Sony
1-826-219-11
Speakers. 8 Ohm 13 watt, heavy magnet, mounted on metal plate with (2) 1/2" mounting hole/slots, with vibration stopping grommets 0.37" ID. SizeL 6" x 2" (150 x 50mm). Overall 8.5" x 2" deep. Cross: KDF-E42A10 Un-used but old $8.95
Unmarked
42327-0000
Audio. Microphone elements/insert. Manufactured for CTI Audio Inc. Material: felt front, 0.7". Dimensions: 0.7" D (17.7mm) x 31.2mm deep. No other info avail. New (un-used) $5.95
Unmarked
05114
Audio, microphone. Elements. Manufactured for CTI Audio Inc. Approximate dimensions: 0.553" OD x 0.838" high. No other information available. New (un-used) $5.95
Astatic
9000
Audio. Power module 9000. High pass bypass / 12db octave high pass switch. Miniature 3-pin male in, mic XLR male out. Dimensions: body is 5-1/2" L x 1-5/16" heat-sinked unit with mount x 2" wide for powering lavilier microphone.  Un-used but old $14.95
Astatic
M1569029
Audio, microphone. Replacement microphone for Tactek radio. Spec1476A.  Un-used but old $40.00
Edwards Signaling Products
874
Adaptahorn Outlet Box. Surface Mount for 240VAC vibrating horns, with hardware. New (un-used) $19.00
Projects Unlimited Inc
SMT-903
Audio alarms and buzzers. Ringers, 3v p-p 2300Hz electromechanical. Features high sound pressure output with low current consumption and minimum resonance frequency is low (2,500HZ). With 8.5 ohm impedence, and an average sound pressure level of 93dB. Rated voltage is 5VDC and average maximum rated current is 80ma. Applications: These speakers are found in cell phones such as Motorola Smartac and various compact high tech gadgets. Mount: SMD. Dimensions: ultra-miniature 8.5mm square x 4mm high. Requires drive circuitry. Package of 10. New (un-used) $3.00
Projects Unlimited Inc
AT-99-13-A
Audio alarms and buzzers. Ringers. Not a PZT, tiny coil inside with magnet. Application: for Motorola flip-phones, PM speaker. Dimensions: Case: 10mm with 1.5" wire leads. Package of 4. New (un-used) $1.00
Unmarked
SPK-055
Speakers. 8 Ohm. Size: 4-1/2" square, 3-1/2" mounts. Cross: 95140679. Un-used but old $2.95
Harris Corp GCSD
SPK-016
Speakers. Loudspeaker, 4" with 4 volume controls and DB25P with 20-pins - G/G Loudspeaker. Type PDPU for FAA chime/volume control with 20 pin DB male connector. Case: 6.8" tall x 6" wide x 3" deep, behind panel. Un-used but old $10.95
Radix Group International Inc
SPK-007
Speakers. 16 Ohm 6oz magnet whizzer cone. Size: 5" x 7". New (un-used) $4.95
Unmarked
9-006
Speakers. Black box with 2" speaker and condenser microphone.Dimensions: 4.2" x 3.1" x 1.4" overall. Hinged lid with screws. High impact plastic. Good for intercom, alarm system, plenty of room for circuitry. Manuf Custom. Same as our P/N 9-005 but no AA battery holder. Un-used but old $1.49
Unmarked
QW442/1740
Audio, microphones. Element only, miniature. Tends to like higher frequencies. New (un-used) $2.99
Unmarked
DM60
Audio. Microphone cartridge, 400 Ohm coil. Material: nylon case. Dimensions:  0.985" OD x 0.8". Color: beige.  Un-used but old $3.50
Unmarked
8-546
Speakers. 4 Ohm, 0.1 watt mylar cone, with a 16 foot power cord, 2 conductor 22AWG and a 1/8" audio plug. size: Overall 1-1/8" D round x 9/16" deep. Un-used but old $1.95
Unmarked
8-120
RCA PHONO hi freq PLUG (M) RT ANGLE (SILVER PLATED)13" COAX WIRE New (un-used) $1.00
Unmarked
7-068
Cable, audio. RCA male to male. Shielded cable. Length: 13". Color. black. Package of 10. New (un-used) $6.00
Bose
5-418
Audio equipment. Automotive 20Watt Amplifier. Spec's - Delco - Requires volume control and 12-14VDC and audio source and speakers and listeners. Wiring Harness attached w/a (M) 4-cond enclosed plug/housing. Dimensions: overall 3-5/8" x 3-1/8" x 7/8" high. Specification sheets available upon request. New (un-used) $17.50
Unmarked
5-161
CD Laser assembly. New (un-used) $3.00
Morse
97DD
Audio equipment. 8 Track & Audio cassette recorder/player, chassis only. Amplifier included but without case or speakers. Specification sheets available upon request. Morse Electrophonics. Un-used but old $19.99
Conneaut Audio Devices
CADAPAsst
Set of (3) miniature pickup and one transformer. One each: 41423 Yellow, 42249 Red and 43672 Black 3-wire devices [about 12.6 x 8.2 x 19mm-long] from a famous Microphone Maker and One miniature 14x12x10.7mm 5-wire transformer. Un-used but old $4.95
Switchcraft
2504M
Audio, microphones. Connectors, 4 pin male. Old microphone type. Un-used but old $6.95
Astatic
ASC650
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. Un-used but old $14.95
Custom
8-366-1
Connector. RCA phono male, single ended cable. White shielded teflon cable. Length: 15". Package of 3.  New (un-used) $3.00
International Co.
75-190
Audio accessory. Mini-headphone extension cable. Male 1/8" to female 1/8" barrel connector on a 12 foot coiled cord. New (un-used) $5.95
Nortronics
W2R8N
Audio head cassette mechanism. Assembly with 1/2 track 1/4" Nortronics W2R8N Cassette Head used in Instrumentation Recorders. Dimensions: 5" long x 1.75" x almost an inch thick. Sold for Head only but also has (4) Bourns 50K trimpots and a nice 111SM2T MicroSwitch with Roller SPDT-5Amp. Weighs almost 8 ounce  Removed from equipment $1.95
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