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Balance Controlled Microphone Preamplifier Circuit (+3 Band Equaliser)

Electronics Projects, Balance Controlled Microphone Preamplifier Circuit (+3 Band Equaliser) article "audio control circuits, " tagged with

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Circuit TL072 op-amp based on the second one 9 volt battery is fed with DC rectifier and regulator circuit on the 15 volt DC Adapter can be used with optional low noise, I suggest using the battery can not be over-current circuit

Balanced input for microphone
Balanced and unbalanced output
Level control
3-band equaliser
Runs from battery, plugpack or phantom power
Battery indicator
Ground lift
Rugged diecast housing

Microphone Preamplifier of EQ

Balance  Controlled Microphone Preamplifier Circuit (+3 Band Equaliser)  tl072 mikrofon preanfi

Source: http://www.siliconchip.com.au/cms/A_102159/article.html

Microphone Preamplifier PCB schematic alternative link: balance-controlled-microphone-preamplifier-circuit-3-band-equaliser.rar alternative link2 alternative link3

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