Search found 13 matches

by friesdan
Fri Oct 11, 2013 8:12 am
Forum: JLM Audio Kits
Topic: 1290 Build Thread
Replies: 74
Views: 84904

Re: 1290 Build Thread

Hey Joe, I've got it working! I have one last question which falls more into the "please help me understand" rather than the "I need help to make it go" category: I've noticed that with cables which have pin 1 connected to the metal casing of the connectors, that I get a hum unle...
by friesdan
Thu Oct 10, 2013 5:43 pm
Forum: JLM Audio Kits
Topic: 1290 Build Thread
Replies: 74
Views: 84904

Re: 1290 Build Thread

Thanks for the help Joe,
No point shipping from there when I can get it here. I just ordered a couple.
Looking forward to hearing these things!
by friesdan
Thu Oct 10, 2013 5:08 pm
Forum: JLM Audio Kits
Topic: 1290 Build Thread
Replies: 74
Views: 84904

Re: 1290 Build Thread

by friesdan
Thu Oct 10, 2013 4:39 pm
Forum: JLM Audio Kits
Topic: 1290 Build Thread
Replies: 74
Views: 84904

Re: 1290 Build Thread

Quoting: With 0v and 48v connected to that TREX and nothing else what volts do you get out of the TREX? Can you adjust the volts out at all with no load? Did the 500mA slow blow fuse blow? Or did the power supply go into hiccup mode (front power led will flash on and off)? What part number is on the...
by friesdan
Wed Oct 09, 2013 9:22 am
Forum: JLM Audio Kits
Topic: 1290 Build Thread
Replies: 74
Views: 84904

Re: 1290 Build Thread

Hi Joe, Thanks for your help so far. I reached a point where I could use your help again. I wired all but the last red wires on the 2 channels, and adjusted the TREX trim pots for 24v (holding the black probe from my DMM on the middle green wire) terminal, and the red probe on the (future red wire) ...
by friesdan
Sat Oct 05, 2013 9:23 am
Forum: JLM Audio Kits
Topic: FET DI QUESTIONS
Replies: 23
Views: 35071

Re: FET DI QUESTIONS

Hi Joe, building these for my 1290 kit, I have the FET DI version 2 PCB. There's a space labeled "220P" just below the vertical 2k7 resistor, but I can't find a cap or any other component included in the kit which would fit here. Is it missing, or do I not need it? If I need it, are there ...
by friesdan
Sat Oct 05, 2013 8:23 am
Forum: JLM Audio Kits
Topic: Go Between and Go Between Plus kit BUILD THREAD
Replies: 29
Views: 42073

Re: Go Between and Go Between Plus kit BUILD THREAD

photopen.png photo 1.JPG Hey Joe, Building my second one of these for the 1290 and I blew it, my spacer for the xformer came out as I was soldering, so I lost the 1 mm gap on one side (the side near the "JLM AUDIO" label on the PCB). I've begun desoldering in order to put that gap in ther...
by friesdan
Sat Oct 05, 2013 5:37 am
Forum: JLM Audio Kits
Topic: 1290 Build Thread
Replies: 74
Views: 84904

Re: 1290 Build Thread

Hi Joe, Building my dual 1290 kit here and I have a question about the power switch PCB: Should I not install the included 4007 diode? (It says "not fitted" on the PDF, but I'm double checking I understand that correctly.) also, just a general build procedure question: the LED needs to be ...
by friesdan
Tue Jul 30, 2013 3:53 pm
Forum: JLM Audio Kits
Topic: BA500 Mic Pre Amp BUILD THREAD 500/51X
Replies: 68
Views: 76306

Re: BA500 Mic Pre Amp BUILD THREAD 500/51X

JOE - Thanks for all you help via email, the detailed pics, and perseverance over 5 days to get to the bottom of the issue. I'm surprised you have patience for a newb like me who puts you through it for a lifted pad/soldering mistake. Lesson learned on my part, time generously dedicated on yours. Th...
by friesdan
Tue Jul 23, 2013 4:53 pm
Forum: JLM Audio Kits
Topic: BA500 Mic Pre Amp BUILD THREAD 500/51X
Replies: 68
Views: 76306

Re: BA500 Mic Pre Amp BUILD THREAD 500/51X

image.jpg
image.jpg
yes, I'm trying to avoid what's likely inevitable- digging around again for my metric socket set and pulling this apart. It's just so pretty as is. Thanks for your help Joe.
by friesdan
Tue Jul 23, 2013 2:38 pm
Forum: JLM Audio Kits
Topic: BA500 Mic Pre Amp BUILD THREAD 500/51X
Replies: 68
Views: 76306

Re: BA500 Mic Pre Amp BUILD THREAD 500/51X

Hey Joe, I saw you email first. Reposting the relevant bits here for the benefit of others. Values were ok until: You should read 450R to 500R (JLM14) or 1.2k to 1.4k (OEP/VTX) across R25 1MEG on the BA500 PCB? No, I'm getting 447R here. I've got the JLM14. You should read 25R to 30R (JLM14) or 15R ...
by friesdan
Tue Jul 23, 2013 4:00 am
Forum: JLM Audio Kits
Topic: BA500 Mic Pre Amp BUILD THREAD 500/51X
Replies: 68
Views: 76306

Re: BA500 Mic Pre Amp BUILD THREAD 500/51X

will do thanks Joe
by friesdan
Mon Jul 22, 2013 6:28 pm
Forum: JLM Audio Kits
Topic: BA500 Mic Pre Amp BUILD THREAD 500/51X
Replies: 68
Views: 76306

Need Help!

Hey Joe, So I've just completed my build and I have essentially the same issue as "grimmstar" above. The pre lights up, 48V led lights up when the switch is switched downwards (is that an Australian thing or did I wire it wrong?) - the meter lights up - but no sound is passed, and the mete...

Go to advanced search