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#71
Tech Help - Projects Page / Re: Harbinger One 2015 not wor...
Last post by jessenator - November 09, 2025, 05:47:00 PM
Reading this makes me want to go back to my Harbinger 1.5... I wonder if my cheap 5088s are the problems. That poor thing has been in an esd bag for years now  :'(
#72
Tech Help - Projects Page / Re: Harbinger One 2015 not wor...
Last post by Kardnez - November 09, 2025, 05:03:42 PM
Hello,

Yes, I had the back cover on.  ;D

It works now. After replacing Q4-Q10 with 2N3904s, everything is running smoothly. What I don't understand is why the Harbinger 1.5 and even 2.0 still use 2N5088s. Maybe I got a bad batch, but they were definitely the cause. According to the transistor tester, they're all fine. Annoying, because the device would have worked from the start...

Anyway, never mind, now I have a working device.

Thanks for your thoughts and contributions.

Holger
#73
Open Discussion / Re: would putting PCB's in a 1...
Last post by dont-tase-me-bro - November 08, 2025, 07:02:18 PM
Thanks for the input - I figured removing the 3PDT would make it so it's always on, but wasn't sure if I was missing something. 

The switcher has 12 loops so I could probably put 6 or 8 in the 1U rack, and then have a couple left over for time based MIDI stuff and if I ever get around to it, small Eurorack.
#74
Tech Help - Projects Page / Re: Harbinger One 2015 not wor...
Last post by NorthCoast - November 08, 2025, 03:21:17 AM
Assuming you put the back cover on... haha :D ...  yeah I think replacing the remaining 2N5088s with 2N3904s would be a good idea.
#75
Tech Help - Projects Page / Re: Harbinger One 2015 not wor...
Last post by jimilee - November 07, 2025, 09:34:51 PM
Is it safe to say you put the back cover on before you test it? I may or may not have made that mistake.


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#76
Open Discussion / Re: would putting PCB's in a 1...
Last post by jimilee - November 07, 2025, 06:24:12 PM
#77
Tech Help - Projects Page / Re: Harbinger One 2015 not wor...
Last post by Kardnez - November 07, 2025, 06:22:08 PM
Hello,

I've had some partial success. After replacing Q2 and Q3 with 2N3904s, a signal (switch set to Chorus) is now present at the output.

Unfortunately, the vibe signal is quiet and distorted. I think I'll have to replace the remaining 2N5088s with 2N3904s as well.
#78
Open Discussion / Re: would putting PCB's in a 1...
Last post by jwin615 - November 07, 2025, 08:12:26 AM
Fine for non-vintage fuzz circuits that you would want first in chain.
Though, you're going to have a lot of wasted space in that deep enclosure.
Something like a shallow 3RU box would be better. Mount the PCBs vertically on the front panel. Could get close to a dozen circuits in there I bet. Maybe more.
#79
Open Discussion / Re: would putting PCB's in a 1...
Last post by jimilee - November 07, 2025, 12:56:49 AM
Yessir, it's been done a number of times. I think it's really a cool idea. Seems like someone at pedalpcb had a cool set up.


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#80
Open Discussion / would putting PCB's in a 1U ra...
Last post by dont-tase-me-bro - November 07, 2025, 12:17:04 AM
I was thinking about building a rack system where I patch everything into a switcher (like RJM's Effect Gizmo) and then control them with a foot switching unit.  This way I can have more control over MIDI stuff.

For the non-MIDI stuff I would build myself, I was thinking about just putting a bunch in a 1U rack enclosure, patch them into the switcher and I can turn them on/off with the foot switcher unit.  I've built dozens of pedals, but the grey area for me is if I'm missing something.  I would just go DC/in/out on the back panel, pots/switches on the front.  I figured no 3PDT, just activate that pedal's loop with the foot switcher.  I wasn't sure if I was missing something with grounding, or if I omitted the 3PDT, would it not just be always on. 

This is the enclosure I was looking at.  Hammond makes one too, but there's is painted on the inside which I figured would mess the grounding up unless I scraped it off.

https://www.budind.com/product/chassis-box/small-rack-mount-chassis-box-series/ch-14402/#group=series-products&external_dimensions_group=0&internal_dimensions=0

Thanks,
Pat