| Jon |
Microphone Mixer |
Friday, March 11, 2016 8:55:10 AM |
| Hi Experts. For a personal monitor/mix. Could this be used to feed a headphone amp with the inputs J1-3 passing through (as before) to the main mixer ?? OR where would this fail ? Thanks, Jon |
| anonymous |
Microphone Mixer |
Thursday, December 27, 2012 9:46:37 AM |
| Anyone know the noise floor could below 2uV(-115dBV) A-weighting? |
| Emmantrop |
Microphone Mixer |
Tuesday, September 04, 2012 6:32:54 PM |
| Thanks, I build this circuit and it work fine. |
| anonymous |
Microphone Mixer |
Saturday, May 28, 2011 1:10:04 PM |
| 1.For questioner on Friday, February 12, 2010, look at schematic, that clearly shows + and minus 9v.
2.For shoaib, follow the instruction, IE use 2 9v batt, eliminating MAX error, Feed in 1Khz signal (or music) at uV to 1 volt and lisen or look with oscope at U1 pin6, R8 and then u2 pin 6 to check for signal stopage. Generate signal with pot or volt divider from strong source.
3.Bill, look harder, it is also 0.022 uF or microfarad. Do not substitute much, IE 20 uF or 24uF as it will likeley not work well.
4.For Sunday, January 06, 2008 question, you can not use 386 but you can use TL071 which will work down to less than 8 volts. Put 2 10k resistors (in series) accross batt and make the center of them the ground of the circuit (making 2 4.5v "supplies). It will not have much head room.
5. balu, as above, you can use TL071 and use the Batt supply to test if the hum is from your power supply. Enclose it is metal case, make all wiring close, use a shielded cable to the mic. Increase size of C1,2,5,6, add a 5 or 10uF to each batt to ground(watch polarity, + to +).
|
| Feil |
Microphone Mixer |
Monday, April 19, 2010 10:08:37 PM |
| this circuit is nice, but do TL0712 works like the 741 OP AMP? what are the characteristics of TL072? |
| anonymous |
Microphone Mixer |
Friday, February 12, 2010 1:41:24 PM |
| When you say 2 9v batteries, do you mean in series or in parallel? Does that mean the circuit needs 18'v? |
| bikash |
Microphone Mixer |
Tuesday, August 25, 2009 4:30:40 AM |
| ok this is nice and these are helpng me to know aboutr electroncs so a heartiest thanks to u. |
| shoaib |
Microphone Mixer |
Monday, January 26, 2009 2:33:17 AM |
| i complete circuit & cheak out many time but my circuit not work i use the max1044 ic for 9v+ 9v- supply what i do help any one plz |
| anonymous |
Microphone Mixer |
Sunday, May 25, 2008 9:52:34 AM |
| usE TL072 op instead of 741 |
| Bill |
Microphone Mixer |
Friday, April 11, 2008 10:26:33 PM |
| I can't find the two 22nf capacitors. can I substitute them with another value? |
| Scientist |
Microphone Mixer |
Wednesday, January 16, 2008 8:37:23 AM |
| nice guys. keep the good work on.
I need more of audio electronics circuit |
| anonymous |
Microphone Mixer |
Sunday, January 06, 2008 10:22:38 PM |
| Can ur circuit supply 9V power. becoz i only need to use 1 capsule microphone and can i use other kind op amp like LM386 |
| balu |
Microphone Mixer |
Friday, January 04, 2008 7:55:22 AM |
| I tried above ckt, but getting hum. How to reduce hum?
can i use other better OPAMP instead of 741. |
| manoj |
Microphone Mixer |
Tuesday, December 18, 2007 3:58:46 AM |
| this is very good |
| osei |
Microphone Mixer |
Monday, November 19, 2007 10:09:58 AM |
| i want the one with four input (jake) |
| serene |
Microphone Mixer |
Friday, October 26, 2007 9:43:59 AM |
| can i get an explanation about jacks? can it be replaced with something else? i need the explanation & working of this circuit |
| pioneer |
Microphone Mixer |
Friday, August 10, 2007 5:13:55 AM |
| Can i connect output of mixer in input of preamp ( Tone Control ) ( the circuit i found on this page ) and after preamp in 22W amp ( the circuit i found on this page ) ? and can i do this mixer without preamp because i have preamp ( Tone Control )? Is necesary to do in 9 V? Can i put 12 or 15V? |
| Beckham |
Microphone Mixer |
Monday, July 09, 2007 1:59:33 PM |
| can the variable resistance also controlled by a microcontroller? |
| israel |
Microphone Mixer |
Friday, May 25, 2007 5:13:56 PM |
| I ma an eletornicman Iwhet you to have a chat willf you on mixer circuit m |
| Sean |
Microphone Mixer |
Monday, May 07, 2007 5:05:51 AM |
| This circuit appears to be exactly what I'm after. Is the signal out sufficient to be treated as line out or will it require further gain from a microphone pre-amp? |
| jemal |
Microphone Mixer |
Saturday, May 05, 2007 2:29:18 AM |
| dear guys!
does it amplifies in addition to mixing? and is it possible 741 op amp?
thanks for your dedicated help |
| jibran ahmed siddiqui |
Microphone Mixer |
Saturday, April 28, 2007 2:40:13 PM |
| i want some suggestions about my final year project,i am a student of telecom engineering and this is my final year, i am very worried and having difficulty to decide my project.please reply me on my email address as soon as possible.
thank you
|
| mohammad barakat |
Microphone Mixer |
Thursday, April 26, 2007 2:57:02 AM |
| i want the discription of this circuit |
| mohammed jamal |
Microphone Mixer |
Saturday, April 21, 2007 2:57:36 PM |
| i want the discription of this circuit |
| anonymous |
Microphone Mixer |
Friday, March 30, 2007 7:39:03 PM |
| i do hav a 60Watts power audio amplifier,but it has no microphone input.....can i used this microphone mixer of yours? and how will i connect this to my power amplifier? please respond me A.S.A.P.
More power to your WEb........
From, Philippines |
| laxman |
Microphone Mixer |
Saturday, March 17, 2007 2:15:49 PM |
| nice |
