dencul

Re: 500 series blue face 1176 rev A - Help thread
« Reply #220 on: April 30, 2020, 12:09:04 AM »
These are the instructions I got from The Don.
It works. But remember a resistor on the +wire.

“I normally power it with pin 12 (+16V) and pin 5 (ground)..  and wire a resistor in series on the + pin of the meter LED..  normally around 1k5 to 10k depending on how bright you would like it..  The smaller outer pins on the meter are for the LED.”


I hope it helps :)

Thank you for the help.  So if I have this right: on + side of meter run a resistor and wire to pin 12, and - (neg) side of meter run a wire to pin 5 (ground)?


Re: 500 series blue face 1176 rev A - Help thread
« Reply #221 on: April 30, 2020, 04:34:22 AM »
Yes, exactly :) from the outer pins of the meter. But before hard soldering the resistor, try with different values to get the right brightness in the LED, before committing to one

dencul

Re: 500 series blue face 1176 rev A - Help thread
« Reply #222 on: May 01, 2020, 07:29:25 PM »
It's a thing of beauty. Thanks for the help!

Re: 500 series blue face 1176 rev A - Help thread
« Reply #223 on: May 02, 2020, 05:49:31 AM »
Looks great. Which resistor value did you end up using?

dencul

Re: 500 series blue face 1176 rev A - Help thread
« Reply #224 on: May 02, 2020, 01:34:37 PM »
I went with the first one I tried, 4k7 (carbon comp, actually read 5k). I figured right in the middle of the range would be the not too bright, not too dim I was looking for. The pic was taken before I thought, "oh, I should pass audio to make sure all still sounds good before a victory lap". Success! Thanks again for your help.

Re: 500 series blue face 1176 rev A - Help thread
« Reply #225 on: May 02, 2020, 02:10:07 PM »
You’re welcome.
I think the brightness is just perfect.

buckethead

Re: 500 series blue face 1176 rev A - Help thread
« Reply #226 on: February 07, 2021, 05:04:24 PM »
Hey guys,

I need to dig up this old thread. I have a couple of those 1176s and was trying to recalibrate and check them after using them for a couple of years. Lately they started to cut out here and there and sometimes there's some gainreduction happening in bypass mode.

So I started with the q bias calibration, but it seems absolutely impossible - I fed a 1kHz sine at 0dBu (0,775V), the rest is set up as should be. As soon as I turn up the input I get enormous output, more than 10V (>22dBu), so it's kinda impossible to do that setup. What am I missing there?

I really can't wrap my head around did, maybe one of you guys can help me out

Thanks and best regards,
Mathias


 

Related Topics

  Subject / Started by Replies Last post
18 Replies
4706 Views
Last post January 15, 2006, 02:47:31 AM
by Minguta
0 Replies
2608 Views
Last post May 05, 2006, 04:27:28 PM
by soundguy
266 Replies
79285 Views
Last post June 20, 2020, 10:35:17 PM
by Dansammartano
2 Replies
520 Views
Last post September 15, 2020, 06:50:56 AM
by Sinkia