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Parametric MID Frequence EQ - (8,080 view(s))

Tuesday, December 20th, 2011
Parametric MID Frequence EQ - ElectroSuite.com

ElectroSuite.com – Parametric MID Frequence EQ, made up of 2 units in the series : Classic unit Bass/Treble and Parametric unit of mid frequencies.

Parametric MID Frequence EQ - ElectroSuite.com
Parametric MID Frequence EQ – users.otenet.gr

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100W Guitar Amplifier Mk II - (6,426 view(s))

Wednesday, November 16th, 2011
100W Guitar Amplifier Mk II Result - ElectroSuite.com

ElectroSuite.com – 100W Guitar Amplifier Mk II.

100W Guitar Amplifier Mk II Result - ElectroSuite.com
100W Guitar Amplifier Mk II – sound.westhost.com

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PreAmplifier Equalizer using IC TL074 - (20,847 view(s))

Sunday, August 7th, 2011
PreAmplifier Equalizer using IC TL074

PreAmplifier Equalizer using IC TL074

This is PreAmplifier Equalizer using IC TL074 Electro Suite, front of the amplifier is done by the Op-Amp A1, A1 is actually reinforcing a time, with the intention of utilizing the high input impedance, about the size of 1M.

Setting the tone carried by the op-amp A2 which also acts as an amplifier with positive feedback, divided by two, partly channeled into a series of R1, R2, C2, C3, and Pot2 to adjust the gain of low frequency (bass), and some routed to the circuit C4, C5, and Pot3 to adjust the gain of high frequency (treble). Furthermore, R3 and R4 are mixing to form a positive feedback loop earlier. Frequency setting like this is a frequency filter theory Baxandall, can be regarded as the audio standard to date. The use of IC op-amp TLO74, because this component is very cheap and easily available, and most importantly, this IC uses a JFET at its input lines and a high slew-rate. With this circuit we can enjoy the stability of low tone Bass, agility tone middle (Mid), and high-pitch of Treble.

Components

  • R1, R2, R3, R4 = 10K
  • R5 = 68K
  • C1 = 100nF
  • C2, C3 = 33nF
  • C4, C5 = 3n3
  • Pot1 = 47K
  • Pot2, Pot3 = 100K

Electro Suite

PreAmplifier Equalizer using IC TL074

Source : Komputek | e-one-s

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10W Audio Amplifier Bass Boost - (4,501 view(s))

Friday, August 5th, 2011
10W Audio Amplifier Bass Boost

10W Audio Amplifier Bass Boost

This is 10W Audio Amplifier Bass Boost electro suite, as an amplifier, this circuit also uses a number of frequencies to drive the loudspeaker, the amount of bass frequencies will be reduced. Therefore, it needs to be installed on a bass-boost control fedback loop amplifier, this is done to address the decline in quality. Graph bass can reach a maximum at +16.4 dB @ 50Hz.

Adjust the volume control at minimum position and R3 with a minimum value of resistance as well. Try to activate the circuit and adjust R3 to read a current of about 20mA to 25mA. Wait for 15 minutes, connect the ground at J1, P1, C2, C3 and C4. Connect also C9 at the output ground.

This circuit can be connected directly to a CD player, tuner and tape recorder. Q3 and Q4 must be installed with the heatsink.

Components

  • P1 = 22K Log Potensiometer (Dual gang for stereo)
  • C3,C 4 =  470uF/25V
  • P2 = 100K Log Potensiometer (Dual gang for stereo)
  • C6 = 47pF 63V ceramic or polyester capacitor
  • R2, R4, R8 = 820R 1/4W
  • C7 = 10nF 63V polyester capasitor
  • R1 = 4K7 1/4W
  • C9 = 100nF 63V polyester capasitor
  • R3 = 500R 1/2W
  • D1 = 1N4148 75V 150mA Diode
  • R5 = 82K 1/4W
  • IC1 = NE5532 Low noise Dual Op-amp
  • R6, R7 = 47K 1/4W
  • Q1 =BC547B 45V 100mA NPN Transitor
  • R9 = 10R 1/2W
  • Q2 = BC557B 45V 100mA PNP Transitor
  • R10 = 0,22 4W (wirewound)
  • Q3 = TIP42A 60V 6A PNP Transistor
  • C1, C8 = 470nF 63V polyester capasitor
  • Q4 = TIP41A 60V 6A NPN Transistor
  • C2, C5 = 100uF/25V
  • J1 = RCA audio input socket
  • Power Supply
    • R1 = 1K5 1/4W
    • Elco = 4700uF/25v
    • D = 100V 4A Diode bridge
    • Led = Red LED
    • T = Centertap transformer 2A/20V

Electro Suite

10W Audio Amplifier Bass Boost

Source : Komputek edition 283 via e-one-s

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