Audio Amplifier

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Study Break Episode 2: Audio Amplifiers
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TDA2051 40W Hi Fi AUDIO POWER AMPLIFIER BY ST 1Pc
$4.95
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Audio amplifier power supply filter capacitors build your own 20000uf 80v
$24.00
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TDA2030A 21 3 channel Subwoofer Amplifier Board Stereo Audio AC 12V A181
$12.99
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NEW SANYO AUDIO POWER AMPLIFIER STK499 090
$15.71
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NEW TDA8944J 2 x 7 W stereo Bridge Tied Load BTL audio amplifier
$8.99
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2SC2525 NPN Audio Frequency Power Amplifier LOT OF 2
$19.45
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2SA1075 PNP Audio Frequency Power Amplifier
$9.95
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2SA1075 PNP Audio Frequency Power Amplifier LOT OF 2
$19.45
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2SC2525 NPN Audio Frequency Power Amplifier
$9.95
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STK412 170 Generic New Audio Power Amplifier IC
$21.50
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TFA9841J Original New NXP 1 Channel Audio Amplifier IC
$10.00
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12V Mini Hi Fi PAM8610 2X10W Audio Stereo Amplifier Board Dual Channel
$13.48
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STK4191 70+70W Audio Power Amplifier + Heat Sink Compound Original SANYO
$19.95
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LM388N 3 DIP14LM388 15W Audio Power Amplifier
$5.00
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LM380N8 Audio Power Amplifier Amp 25W 8 DIP
$4.50
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LM380N 14 14 Pin DIP 25W Audio Power Amp Amplifier IC NOS
$5.00
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LM380N 14 Pin DIP 25W Audio Power Amp Amplifier IC NOS
$4.50
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42W DUAL AUDIO POWER AMPLIFIER IC UPC1277H 2 pcs
$12.00
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NTE745 Integrated Circuit Audio Amplifier 500mW
$12.50
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NEW UNUSED 120W AUDIO POWER RESISTOR VACUUM TUBE AMPLIFIER DUMMY TEST LOAD 4 OHM
$14.99
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TEXAS INSTRUMENTS TI496 TRANSISTOR AUDIO AMPLIFIER SWITCH NNB
$1.36
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HA13118 18 W BTL Audio Power Amplifier LOT OF 4
$29.00
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HA13118 18 W BTL Audio Power Amplifier
$6.95
quality
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NTE186 Silicon Transistor General Purpose Output Driver for Audio Amplifier
$7.50
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NEW 120W 120 WATT AUDIO POWER AMP AMPLIFIER DUMMY POWER SUPPLY TEST LOAD 8 OHM
$14.97
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New CTS Nylon Shaft potentiometer 3M rev audio Fits Fender Amplifiers
$4.95
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1PC NEW TPA6011A4PWP RoHS 3W STEREO AUDIO POWER AMPLIFIER W DC VOLUME CONTROL
$29.00
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Qty2 NOS RadioShack 276 705 58 Watt Audio Power Amplifier IC TA2205AP
$8.75
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International Rectifier Ir4321Mtrpbf Audio Amplifier Class D 90W Pqfn 15
$18.89
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GENERAL ELECTRIC GEIC 169 AUDIO AMPLIFIER 14 PINS NNB
$3.95
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TDA8591TH Original New NXP Audio Amplifier 310W 2 CHANNEL PDSO24
$16.95
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LA4631 Original Pulled Sanyo Audio Amplifier 5W 2 CHANNEL SFM13
$12.95
quality
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TDA7294 Original ST Audio Amplifier IC SINGLE BIPOLARMOS ZIP 15PIN PLASTIC
$8.95
quality
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TDF8591TH Original New NXP Audio Amplifier 310W 2 CHANNEL PDSO24
$19.95
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TDA8563Q Original Pulled NXP Audio Amplifier 55W 2 CHANNEL PZIP13
$8.95
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TFA9843BJ Original Pulled Philips Audio Amplifier 14W 2 CHANNEL PZFM9
$8.95
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TDA8587Q Original Pulled NXP Audio Amplifier IC QUAD ZIP 16PIN PLASTIC
$19.95
quality
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STK350 050 Original Pulled Sanyo Audio Amplifier 2 CHANNEL PSFM15
$14.95
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TDA2052 60W HI FI AUDIO POWER AMPLIFIER LOT OF 4
$19.95
quality
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ULN2280B SPRAGUE 2W Audio Amplifier Power Dip DIP14 Profile NOS DC 1979
$4.50
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AN315 11 PIN AUDIO AMPLIFIER I C
$5.95
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National Semiconductor LM1875T LM1875 20W Audio Power Amplifier 2 pcs
$5.50
quality
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100 Ft 20 Awg Solid Core silver Plated 600V Teflon Wire Audio Tube Amplifier
$27.95
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22 UF 450V AXIAL LEAD 35 Pieces TUBE AUDIO CAPACITOR AMPLIFIER RADIO REPAIR
$42.75
quality
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100 PIECES 22 UF 250 275Vac Radial Film Capacitor Audio Amplifier
$8.95
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Texas Instruments LM380N LM380 25W Audio Power Amplifier 10 pcs
$12.50
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2 Pieces TDA2050 New IC Integrated Circuit Audio Amplifier + USA FREE SHIP
$4.88
quality
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TA8216H Dual audio power amplifier BY TOSHIBA
$3.95
quality
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General Radio 1308 A Audio Oscillator Amplifier Manual Operating Service
$9.95
quality
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TDA2052 60W HI FI AUDIO POWER AMPLIFIER
$4.95
quality
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TDA2052 60W HI FI AUDIO POWER AMPLIFIER LOT OF 2
$8.95
quality
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GENERAL ELECTRIC GE 80 PNP GERMANIUM TRANSISTOR AUDIO POWER AMPLIFIER NIB
$5.00
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MITSUBISHI AN7131 24V 4A 10W Audio Power Amplifier Through Hole New Quantity 1
$9.95
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MITSUBISHI AN7140 Audio Power Amplifier Circuit 9 Pin Sip New Quantity 1
$7.95
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MITSUBISHI AN7140 Audio Power Amplifier Circuit 9 Pin Sip New Quantity 1
$9.95
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MITSUBISHI PULL AN7818F Audio Amplifier Circuit PULL New Quantity 1
$9.95
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1 piece KIA6280H Audio Power Amplifier IC Integrated Circuit + USA Free Ship
$6.77
quality
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TDA2051 40W Hi Fi AUDIO POWER AMPLIFIER BY ST LOT OF 4
$19.95
quality
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20PCS LM386 LM386M DIP 8 Audio Power Amplifier Amp IC US SHIPPING
$4.10
quality
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Motorola MC1590G NOS RF IF Audio Gain Control AGC Amplifier TO 99
$12.50
quality
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TA8211AH Dual audio power amplifier
$3.95
quality
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2X LM386 Audio Amplifier Module 200 Times 5V 12V 10K Adjustable Resistance M220
$4.60
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Transformer TR 293 2 8316651 For TDA2030A 21 Stereo Audio Amplifier Board
$7.50
quality
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ANALOG DEVICES SSM2166S SSM2166SZ Audio Power Amplifier SOIC14
$8.99
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Two NIB F 2N3055 533 Audio Power Amplifiers
$9.90
quality
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20PCS LM386 LM386N DIP 8 Audio Power AMPLIFIER IC NEW US SHIPPING M219
$4.20
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New LM386 Audio Amplifier Module 200 Times 5V 12V Input 10K Adjust Resistance
$3.60
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Lot Of 4 LA4285 Audio Amplifier ICs 3 Watts 8 Ohms Out
$9.95
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TDA7563 STMicroelectronics Audio Integrated Circuit QUAD POWER AMPLIFIER NEW
$12.99
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35 PCS LINEAR IC BA5406 AMPLIFIER AUDIO 5W STER AB ROHM 5406 BA5406 5406
$25.35
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4 PCS IC TDA7391PD AMPLIFIER AUDIO POWER 40W ST MICRO 7391 TDA7391P
$24.76
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20 PCS LINEAR IC TDA2030AV AMPLIFIER AUDIO 18W MONO 2 PIN CAN ST TDA2030AV 2030
$8.88
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15 PCS IC TPA0212PWP AMPLIFIER AUDIO POWER 26W AB 24 PIN TSSOP TI 0212
$24.83
quality
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RAYTHEON REN1024 IC MODULE HYBIRD AUDIO POWER AMPLIFIER 8W NTE1024 ECG1024
$15.00
quality
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STK011 IC MODULE HYBIRD AUDIO POWER AMPLIFIER 8W NTE1024 ECG1024
$9.00
quality
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Solar Electronics 6552 1A 100 Watt Solid State Audio Amplifier Inst Manual w sch
$16.00
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STK4044 Audio High Power Amplifier DIY 100 Watt Amplifier
$12.49
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TA7222AP 58W AUDIO POWER AMPLIFIER LOT OF 10
$29.00
quality
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New LM386 Module 5V 12V Input Adjustable Resistance 200 Times Audio Amplifier
$4.51
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20PC LM386N 1 LOW VOLTAGE AUDIO AMPLIFIER NATIONAL SEMI NEW 8PIN DIP
$29.00
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TA7222AP 58W AUDIO POWER AMPLIFIER
$2.95
quality
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TA7222AP 58W AUDIO POWER AMPLIFIER LOT OF 10
$29.00
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9 audio amplifier chips
$57.00
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TA7222AP 58W AUDIO POWER AMPLIFIER
$3.45
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TA7205AP AUDIO POWER AMPLIFIER FOR CAR STEREO AND CB RADIOS MADE IN JAPAN
$8.95
quality
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MPJ 31804MI Adjustable 5W Mono Audio Amplifier Module TDA2030A
$11.95
quality
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30 LM4839LQ STEREO AUDIO POWER AMPLIFIER 27 55V 2W PUSH PULL LLP 28 SMD SMT
$4.99
quality
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MPJ 31805MI Adjustable 200 Gain Microphone Audio Pre Amplifier Module LM386
$11.95
quality
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MPJ 31808MP Adjustable 100x Gain Microphone Audio Pre Amplifier Module LM386
$10.95
quality
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TDA7052 Philips 1W Single IC BTL Mono Audio Amplifier DIP 8 8Ohm Amp TDA7052
$5.95
quality
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MST 2N2217 Silicon NPN Transistor General Purpose Audio Amplifier Switch
$5.80
quality
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Lot 40pcs Tripath TA2020 020 ES 2x 20W Audio Power Amplifier Class T
$79.99
quality
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2 x LM1875T LM1875 IC AUDIO POWER AMPLIFIER 20W USA SELLER Free Shipping
$3.99
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NEW Original National LM1876T Dual 20W Audio Amplifier IC 15 Pin LM1876
$4.99
quality
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LMN386N 400mW Audio Amplifier 276 1731 By RadioShack
$3.89
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Gikfun 200 Times Gain 5V 12V LM386 Audio Amplifier Module For Arduino EK1236
$14.56
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VINTAGE TEKTRONIX ENGINEERING POWER SUPPLY RARE TUBE AUDIO AMPLIFIER
$749.00
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Toroidal Transformer 39v 0 39v Audio Amplifier DIY
$27.95
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Pair of Transformers 90V 0 Audio Amplifier DIY FT3384 127410 1
$39.95
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Toroidal Transformer 37v 0 37v 18v 0 18v Audio Amplifier DIY
$46.95
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Audio Amplifier

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Frequently Asked Questions...

what kind of Potentiometer will i need to make a volume control for a simple audio amplifier circuit?

at school we are making an audio amplifier circuit with one of these speakers: http://www.maplin.co.uk/Module.aspx?ModuleNo=3273
I have found this page but what one should i get??

http://www.maplin.co.uk/Module.aspx?ModuleNo=2200

PS i am not an expert so please keep everything simple!!


Answer:

Really you should make sure you use a "log" pot not a linear one.
Logarithmic potentiometers are used for audio attenuation because our ears respond to logarithmic noise levels.
Read up about Decibels.