Search found 4 matches

by mrclunk
Tue Dec 10, 2019 8:45 pm
Forum: JLM Audio Kits
Topic: Talkback Comp Build Thread
Replies: 16
Views: 6630

Re: Talkback Comp Build Thread

I'm sorry Joe, i ment to update my post... Mic worked fine using the standard (2 x 6k8) supply as on the pcb. It's an Astrada conference mic 952.353UK (just the gooseneck mic part) All working nicely on our Calrec. I added a 1k Log pot across the output for volume and a cheap OEP a262a2e transformer...
by mrclunk
Wed Dec 04, 2019 2:56 am
Forum: JLM Audio Kits
Topic: Talkback Comp Build Thread
Replies: 16
Views: 6630

Re: Talkback Comp Build Thread

So i couldn't find a high brightness LED that would work so i made a little TL072 buffer circuit to drive an GR LED. Works well. Next question.. How would i go about powering an Electret (TB) mic with this circuit? Can i just remove one of the 6K8 resistors and put a 9V zener across the PP to ON jum...
by mrclunk
Sat Aug 17, 2019 10:01 pm
Forum: JLM Audio Kits
Topic: VU BUFFER & PEAK LED KIT BUILD THREAD
Replies: 98
Views: 66915

Re: VU BUFFER & PEAK LED KIT BUILD THREAD

If i want to sum a balanced stereo signal to mono for inputing to the one of these boards, what's the best way?
This would hang off the mix bus so wouldn't want it to affect signal.
Do i need to add a buffer?

Is the circuit attached overkill?
balmix.jpg

thanks
by mrclunk
Fri May 24, 2019 10:45 pm
Forum: JLM Audio Kits
Topic: Talkback Comp Build Thread
Replies: 16
Views: 6630

Re: Talkback Comp Build Thread

Is there anyway to add very simple GR metering on this? Doesn't need to be accurate. I've VU buffer pcb's handy if that simplify things?
thanks
Paul

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