Mic, Line, EQ... Preamps - Page 39

mebexno · 07:14 AM

by schematic Apex MX1, I use to stereo to mono preamp.
I combine it with the B500. results signal sounded perfect and does not eliminate the original frequency. thanks Mile. sorry my bad english.
sir mile, should I replace the R input 22k? for better sound?

engel dela pena · 28th December 2012, 07:29 AM

helo apex,
by the time i mange to get camera pls see how much ml3 i make.tnx

DAMANHURI · 28th December 2012, 05:14 PM

I've tried it with the specifications provided by APEX, but I have a problem on Mute / Operate Relay does not work and the red indicator lights up, if you can help me APEX? I question my view on the schematic point 4 da 5 connected goto +6.3 V and point 9 to the ground, but the PCB layout I created only 4 only connect dots and point 5 is not connected to any section. please help Mr. Mile. sorry my bad language.
regards
Damanhuri

mrching · 29th December 2012, 04:16 AM

hello apex do you have echo circuit for diy? can you share it?

wiljj78 · 31st March 2013, 07:37 PM

Just want to share for all diy freind may need this APEX fan control.

Regards,

abetir · 4th April 2013, 11:50 PM

Thank You Wil!
..been waiting for this one..

TY!

france · 18th April 2013, 06:05 AM

echo circuit post here are ok i tried already ic pt2399

panggih · 20th April 2013, 04:25 PM

anyone please help me,what is the problem with mine ML3, when pot to minimum but still audible voice?

SERGIODS · 04:19 PM

The creator of this preamplifier is known in this forum:

FJROMERO

Quote:

Originally Posted by apexaudio

In this thread I will post preamps, EQ, active x-overs, VU...
ML3 is Mic/Line XLR preamp with three band EQ +/-20dB
PCB size 100x40mm
Regards

Share this preamp:
Design of Sr: TUPOLEV.
Redesign: YIROSHI
also can be found on the website of video jukebox.

stereo preamplifier

VIDEO ROCKOLA

pdf format

18th April 2013, 06:05 AM	#387
france diyAudio Member Join Date: Sep 2009 Location: Mariveles ,Bataan	echo echo circuit post here are ok i tried already ic pt2399

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28th December 2012, 07:29 AM	#382
engel dela pena diyAudio Member Join Date: Oct 2005	helo apex, by the time i mange to get camera pls see how much ml3 i make.tnx

29th December 2012, 04:16 AM	#384
mrching diyAudio Member Join Date: Jan 2011 Location: butuan city ph.	hello apex do you have echo circuit for diy? can you share it?

4th April 2013, 11:50 PM	#386
abetir diyAudio Member Join Date: Nov 2010 Location: Easternmost Region V	Thank You Wil! ..been waiting for this one.. TY!

20th April 2013, 04:25 PM	#388
panggih diyAudio Member Join Date: Oct 2012 Location: jakarta	anyone please help me,what is the problem with mine ML3, when pot to minimum but still audible voice?