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Messages - pdhonte

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1
Tech Help - Projects Page / Re: Harbinger One
« on: January 13, 2017, 02:41:06 AM »
So you should check your soldering in that area of the schematic, I don't know what else. I'd start around the trim pots and check if turning them changes Q13's voltages, because they should at least let you get a bright lamp.
Pierre.

2
Tech Help - Projects Page / Re: Harbinger One
« on: January 12, 2017, 03:03:39 AM »
Hello,

So the LFO's where the problem is. You've reported fixed voltages at Q13's collector and Q11/12 bases and emitters, but they should vary. Can you check that?
I would also check the wiring of the speed pot and solder in the LFO and pulsating LED circuits, the two parts down the schematic.

Pierre.

3
Tech Help - Projects Page / Re: Harbinger One
« on: December 12, 2016, 11:01:48 AM »
Hi,
What are the typical voltage oscillations values at Q13's collector? Can you also check the voltages at the bulb, and the continuity along Q13, the gain trim and R47?

Pierre.

4
Global Annoucements / Re: 2016 Wrap-Up and Announcement
« on: December 05, 2016, 10:54:35 PM »
These are great news! Thanks a lot Brian for making all these circuits available.
Pierre.

5
Global Annoucements / Re: A new poll for project release order.
« on: July 15, 2016, 12:50:51 PM »
Hi!

Thanks for the poll. That's fun! I've never built tube effects, these would make a great start.

Cheers, Pierre.

6
Tech Help - Projects Page / Re: Harbinger One - Deteriorated PCB
« on: May 18, 2015, 02:37:58 AM »
That's very clean! Much cleaner than what I did. I used a pump, but it was messy. I'm just not very skillful with at soldering. Why is it better to use braid there?

7
Tech Help - Projects Page / Re: Harbinger One - Deteriorated PCB
« on: May 18, 2015, 02:01:18 AM »
Tanks micromegas, it worked, I soldered directly the components together.

8
Tech Help - Projects Page / Re: Harbinger One - Deteriorated PCB
« on: May 16, 2015, 12:07:48 AM »
Hello micromegas,

Thanks for the idea , I'll try that after the cleaning.

9
Tech Help - Projects Page / Harbinger One - Deteriorated PCB
« on: May 15, 2015, 03:33:37 PM »
Hello everyone,

I'm a beginner with a few vero builds, but not many pcbs. I had to change the 7815 a few times, thinking I was frying them and I wonder if I haven't managed to burn or melt the pcb now. I have taken voltage readings on the in and out pins, both from ground and +18 v, giving 0 each time.

See the pics below, it's ugly. What do you think? Is there a way to fix it? Or should I start over?

Thanks!

Pierre.



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