Search found 86 matches
- Sun Jun 23, 2013 6:52 am
- Forum: JLM Audio Kits
- Topic: LA500 opto comp leveling amp BUILD THREAD 500/51X
- Replies: 223
- Views: 590444
Re: LA500 opto comp leveling amp BUILD THREAD 500/51X
Hello Joe, the caps C3 & C4 (3uf3) on the hpf on the mac pcb are shown as bipolar types in the schematics. My supplied caps are polarized,not bipolar. Can I use them with minus connecting to 0v/ground?( because of normally being bipolar they aren't marked on the silkscreen). Just to be save...... Th...
- Sun Jun 02, 2013 11:43 pm
- Forum: JLM Audio Kits
- Topic: dINgO Pup kit BUILD THREAD
- Replies: 79
- Views: 269752
Re: dINgO Pup PCB and kit now available
Great,thank you very much indeed Joe!Joe Malone wrote: HI Udo for 10k lin fader add a 1k resistor between the wiper and 0v to quasi log the pot. The 1k resistor can be fitted on the dingo pup as R6 instead of the normal 100k to do this neatly.
Best,
Udo.
- Sat Jun 01, 2013 6:35 pm
- Forum: JLM Audio Kits
- Topic: dINgO Pup kit BUILD THREAD
- Replies: 79
- Views: 269752
Re: dINgO Pup PCB and kit now available
Hello Joe,me again. I made a mistake saying I've got log. faders here.Instead they're all linear (torn from an ssl console,all Penny & Giles 3210xxx....-types). As we know they are expensive and I have a lot of them now I want to re- use them. To use it with your kits for building active faders what...
- Mon May 20, 2013 11:40 pm
- Forum: JLM Audio Kits
- Topic: dINgO Pup kit BUILD THREAD
- Replies: 79
- Views: 269752
Re: dINgO Pup PCB and kit now available
Thanks for the fast reply Joe,looks like a planJoe Malone wrote: Yes works perfectly. Wire unbalanced out to top of fader and unbalanced in to wiper and 0v to other end of the fader. Dial up the amount of gain you want with with R8 triimpot on the dingo pup PCB.
Best from germany,
Udo.
- Sun May 19, 2013 4:59 am
- Forum: JLM Audio Kits
- Topic: dINgO Pup kit BUILD THREAD
- Replies: 79
- Views: 269752
Re: dINgO Pup PCB and kit now available
Hello Joe, hope you're fine. I have questions on the kit. 1.:The optional Neutriks,do they have metric screw holes (M3) or are self-tapping screws needed?Do they come with them? 2.:Looking for i/o balanced active Faders with some-say +10dB- "in hands",is it just hooking them up between the unbalance...
- Sun Apr 21, 2013 4:45 pm
- Forum: JLM Audio Kits
- Topic: VUPPMGR40v3 kit (40 Led PPM/VU/GR Meter kit) BUILD THREAD
- Replies: 21
- Views: 113968
Re: VUPPMGR40v3 kit (40 Led PPM/VU/GR Meter kit) BUILD THREA
Great,thank you for the infos Joe!
Best,
Udo.
Best,
Udo.
- Sun Apr 21, 2013 3:07 am
- Forum: JLM Audio Kits
- Topic: VUPPMGR40v3 kit (40 Led PPM/VU/GR Meter kit) BUILD THREAD
- Replies: 21
- Views: 113968
Re: VUPPMGR40v3 kit (40 Led PPM/VU/GR Meter kit) BUILD THREA
Hello Joe, hope you're fine. You said we should put our questions here,so here we go: 1:Will the jumper for LED brightness work on linked modules meaning is it possible to put a 3-position switch on the frontpanel for linked modules? 2:Could you please explain the peak LED Sync a bit more in-depth (...
- Fri Jan 04, 2013 5:00 pm
- Forum: JLM Audio Kits
- Topic: LA500 opto comp leveling amp BUILD THREAD 500/51X
- Replies: 223
- Views: 590444
Re: LA500 opto comp leveling amp BUILD THREAD 500/51X
Ok I will do the mods and just not the stereo matching pot. I am almost ready to fire it up and calibrate it. Just one last question I can't find any info on where the red led should be installed. Unless i missed it somewhere. Thanks Udo for your tips, they are on the money. -Scott The led is not u...
- Fri Jan 04, 2013 5:59 am
- Forum: JLM Audio Kits
- Topic: LA500 opto comp leveling amp BUILD THREAD 500/51X
- Replies: 223
- Views: 590444
Re: LA500 opto comp leveling amp BUILD THREAD 500/51X
Hello Scott, Joe is having some days off,from what I've seen he'll be back next week. Let's see if I can help you (forgive me Joe :D ). The pot:It's a dual pot,2 x 200 k log.Paralleling both forms the 100k log that we need in this circuit.You can find the info in the schematic for the mac pcb on the...
- Thu Jan 03, 2013 9:06 am
- Forum: JLM Audio Kits
- Topic: LA500 opto comp leveling amp BUILD THREAD 500/51X
- Replies: 223
- Views: 590444
Re: LA500 opto comp leveling amp BUILD THREAD 500/51X
Hi Scott,
R25 and C8 do connect there after the schemo,so yes,all good!
Have fun,
Udo
R25 and C8 do connect there after the schemo,so yes,all good!
Have fun,
Udo
- Mon Dec 24, 2012 9:02 am
- Forum: JLM Audio Kits
- Topic: LA500 opto comp leveling amp BUILD THREAD 500/51X
- Replies: 223
- Views: 590444
Re: LA500 opto comp leveling amp BUILD THREAD 500/51X
Hi Joe, just wanted to show my little progress of my Compressor-Rack for lead-vocals on my next musical. Building was as easy as can be-again!No issues at all,amazing..... I want to advise something concerning trimming the meters:When doing it please let the units heat up for some minutes,the meters...
- Sat Jun 16, 2012 1:18 am
- Forum: JLM Audio Kits
- Topic: LA500 opto comp leveling amp BUILD THREAD 500/51X
- Replies: 223
- Views: 590444
Re: LA500 opto comp leveling amp BUILD THREAD 500/51X
Wow,cool!Tricky!Joe Malone wrote:Added the stereo balance mod to the third post at the beginning of this build thread.
Direct link
http://www.jlmaudio.com/forum/viewtopic ... =187#p1709
Thanks a lot Joe!!!
Udo.
- Thu Jun 14, 2012 3:42 am
- Forum: JLM Audio Kits
- Topic: AMP HEAD Build Thread
- Replies: 89
- Views: 323845
Re: AMP HEAD Build Thread
Hey Udo, had a look at that website you mentioned which you got your case for this headphone amp, just wondering if you know which model/part number it was? i like the look of that case :D Sure,it´s this one: Galaxy GX147 124 x 170 x 40 mm It has an inner useful height of 40mm,don´t swap it with Ga...
- Mon Jun 11, 2012 6:30 pm
- Forum: JLM Audio Kits
- Topic: AMP HEAD Build Thread
- Replies: 89
- Views: 323845
Re: AMP HEAD Build Thread
The mute function shorts the +/- audio input together after 2 x 10k resistors together so should mute to a very very low level as long as the 0v ground for the audio input and AMP Head are connected. Send me a email and I will send you the AMP HEAD schematic so you can see how it works. Hi Joe, I a...
- Mon Jun 11, 2012 6:20 pm
- Forum: JLM Audio Kits
- Topic: LA500 opto comp leveling amp BUILD THREAD 500/51X
- Replies: 223
- Views: 590444
Re: LA500 opto comp leveling amp BUILD THREAD 500/51X
Hi Joe,Joe Malone wrote:kante1603 wrote: I will get the photo's up of the pot mod up when I get back to the workshop tomorrow. Yes the LA500 only uses the highest voltage rails available.
Good to hear,this way I can distribute my currents better in my 51x racks,cool!
Thank you!
Udo.