The Sound Blaster 16 PCI and Sound Blaster 16 ISA do not have a very sensitive microphone input. This little one transistor amplifier is powered directly from the microphone jack on the sound card and has LOTS of gain. Just put a 100uF bypass capacitor in parallel with the diode to increase gain even more.
Source: http://members.shaw.ca/novotill/SoundBlasterPreamp/index.htm
Showing posts with label Pre MIC. Show all posts
Showing posts with label Pre MIC. Show all posts
Pre MIC (microphone preamplifier) 3 CH by IC LM348
Circuit Pre MIC (microphone preamplifier) 3 CH by IC LM348
PCB Pre MIC (microphone preamplifier) 3 CH by IC LM348
Pre MIC (microphone preamplifier) 2 CH by IC NE5532 or LF353
Circuit Pre MIC (microphone preamplifier) 2 CH by IC NE5532 or LF353
PCB Pre MIC (microphone preamplifier) 2 CH by IC NE5532 or LF353Pre MIC 3 Transister ( C945 ) mono
This circuit Dynamic Microphone Preamp,Pre MIC 3 Transister mono.
By Transister Part C945= 3 part.(TR1-TR3) OR C828 OR C458
Supply Volt 12V - 24V.
Easy to build and low cost.
Circuit Pre MIC - 3 Transister (C945) mono
PCB Pre MIC - 3 Transister (C945) mono
By Transister Part C945= 3 part.(TR1-TR3) OR C828 OR C458
Supply Volt 12V - 24V.
Easy to build and low cost.
Circuit Pre MIC - 3 Transister (C945) mono
PCB Pre MIC - 3 Transister (C945) mono
Pre MIC - 3 Transister (C945) mono
This circuit Dynamic Microphone Preamp,Pre MIC 3 Transister mono.
By Transister Part C945= 3 part.(TR1-TR3) OR C828 OR C458
Supply Volt 12V - 24V.
Easy to build and low cost.
Circuit Pre MIC - 3 Transister (C945) mono
PCB Pre MIC - 3 Transister (C945) mono
By Transister Part C945= 3 part.(TR1-TR3) OR C828 OR C458
Supply Volt 12V - 24V.
Easy to build and low cost.
Circuit Pre MIC - 3 Transister (C945) mono
PCB Pre MIC - 3 Transister (C945) mono
Pre MIC 2 Transister mono
This circuit Pre MIC 2 Transister mono.
By Transister Part C945.Supply Volt 12V - 24V.
Easy to build and low cost.
Dynamic Microphone Preamp
Circuit : Andy Collinson
Email: anc@mitedu.freeserve.co.uk
Description:
A low noise pre-amplifier suitable for amplifying dynamic microphones with 200 to 600 ohm output impedance.
Notes:
This is a 3 stage discrete amplifier with gain control. Alternative transistors such as BC109C, BC548, BC549, BC549C may be used with little change in performance. The first stage built around Q1 operates in common base configuration. This is unusuable in audio stages, but in this case, it allows Q1 to operate at low noise levels and improves overall signal to noise ratio. Q2 and Q3 form a direct coupled amplifier, similar to my earlier mic preamp.
Source: http://www.mitedu.freeserve.co.uk/Circuits/Audio/dyn_mic/dyn_mic.htm
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