Can anyone recommend me low-voltage dynamic microphone preamp circuit similar to this one for ECM http://www.analog.com/en/products/amplifiers/operational-amplifiers/high-voltage-op-amps-greaterthanequalto-12v/lt1677.html#product-overview ???
Can anyone recommend me low-voltage dynamic microphone preamp circuit similar to this one for ECM http://www.analog.com/en/products/amplifiers/operational-amplifiers/high-voltage-op-amps-greaterthanequalto-12v/lt1677.html#product-overview ???
Hi Joven,
So many thanks for your prompt, kind and very interesting feedback and
nice to meet you!
Your e-mail addresses look strange but hopefully my reply is being
delivered properly to one of the e-addresses.
My name is Misha, I am steel-string acoustic guitar player living in
Tbilisi, Republic of Georgia (former USSR), and I looking for the
quality dynamic mic (low-impedance 100-200 Ohm) preamp circuits to
build and have it installed in the body of the new acoustic guitar
....
In other instruments I do use electret condenser mics (miniature
Oktava) wired to the guitar's on-board B-Band preamp system which I
will NOT have available for the new instrument, so I have to build it
myself and install in the guitar. ECM mics are most commonly used for
acoustic guitar pickup systems, but now, due to the potential
characteristics and less-prone to feedback, I am experimenting with
little dynamic mic capsules and really got some success; these are
100-200 Ohm capsules taken from quality earphones and they really work
as good microphones, however with lower sensitivity comparing to ECM
mics ...... I got this idea from Swiss company Schertler who
produces moving-coil pickup systems with the similar impedance of
200-300 Ohm, I find this technology of mics and ear-phone capsules
almost the same using magnets and coils, I am sure this will
definitely work just great.....
So I am searching for some little preamp (PRE-PREAMP would sound more
equally!) section based on 1-2 transistors or one OP-amp and having
low-voltage powering of 3-4.5V (for easier installation in the
guitar's body), the major requirements are the following:
1. To preamplify signal from 0.5-1 mV to 10-15 mV
2. To be designed for low-impedance dynamic mic inputs
3. To having minimal number of other semi-conductors in the circuit
4. To be ready-to-go, all the way tested and completed requiring no
more experimentation with nominals of other semi-conductors.....
In similar situations (compactly mounted internally in the guitar),
some manufacturers do use couple of FET transistors, do you think that
transistors might be any better of Op-amps in regards or self-noise,
distortion and amplification ??
If the higher voltage of up to 9V might be considered as a must for
better results, then I would move to that circuit options.
Sorry for such a large letter but otherwise it would not have the
situation described and covered fully.
Thank you for your time and consideration!
With kindest regards,
Misha
Hi Joven,
So many thanks for your prompt, kind and very interesting feedback and
nice to meet you!
Your e-mail addresses look strange but hopefully my reply is being
delivered properly to one of the e-addresses.
My name is Misha, I am steel-string acoustic guitar player living in
Tbilisi, Republic of Georgia (former USSR), and I looking for the
quality dynamic mic (low-impedance 100-200 Ohm) preamp circuits to
build and have it installed in the body of the new acoustic guitar
....
In other instruments I do use electret condenser mics (miniature
Oktava) wired to the guitar's on-board B-Band preamp system which I
will NOT have available for the new instrument, so I have to build it
myself and install in the guitar. ECM mics are most commonly used for
acoustic guitar pickup systems, but now, due to the potential
characteristics and less-prone to feedback, I am experimenting with
little dynamic mic capsules and really got some success; these are
100-200 Ohm capsules taken from quality earphones and they really work
as good microphones, however with lower sensitivity comparing to ECM
mics ...... I got this idea from Swiss company Schertler who
produces moving-coil pickup systems with the similar impedance of
200-300 Ohm, I find this technology of mics and ear-phone capsules
almost the same using magnets and coils, I am sure this will
definitely work just great.....
So I am searching for some little preamp (PRE-PREAMP would sound more
equally!) section based on 1-2 transistors or one OP-amp and having
low-voltage powering of 3-4.5V (for easier installation in the
guitar's body), the major requirements are the following:
1. To preamplify signal from 0.5-1 mV to 10-15 mV
2. To be designed for low-impedance dynamic mic inputs
3. To having minimal number of other semi-conductors in the circuit
4. To be ready-to-go, all the way tested and completed requiring no
more experimentation with nominals of other semi-conductors.....
In similar situations (compactly mounted internally in the guitar),
some manufacturers do use couple of FET transistors, do you think that
transistors might be any better of Op-amps in regards or self-noise,
distortion and amplification ??
If the higher voltage of up to 9V might be considered as a must for
better results, then I would move to that circuit options.
Sorry for such a large letter but otherwise it would not have the
situation described and covered fully.
Thank you for your time and consideration!
With kindest regards,
Misha