Recent posts

#41

General Questions / Re: Board layout for original ...

Last post by Mark0614 - October 28, 2025, 03:50:20 AM

Thank you everyone for your kind assistance, I greatly appreciated your help.

Sorry for my late replies, I'm not getting notifications for some reason.

Thanks again and happy building.

Regards

Mark

#42

General Questions / Re: Board layout for original ...

Last post by Mark0614 - October 28, 2025, 03:47:55 AM

Here's the 2012 doc. Wayback Machine FTW

Brilliant work. I never seem to use wayback, I will have to become more familiar with it.

As I suspected the part designations are the same despite the different layout.

Thanks for your assistance.

Regards

Mark

#43

Tech Help - Projects Page / Re: Harbinger One 2015 not wor...

Last post by NorthCoast - October 27, 2025, 05:29:19 PM

Can you post some pics?

What voltages are you getting on Q1?

#44

Open Discussion / Re: Check this BYOC news

Last post by jessenator - October 27, 2025, 04:50:04 PM

otherwise your mailing address and email address are on the public directory and they get harvested and abused.

preach

#45

Tech Help - Projects Page / Re: Harbinger One 2015 not wor...

Last post by Kardnez - October 27, 2025, 02:27:05 PM

Update:
I replaced Q11 and Q12 with 2N3904 transistors, and the LFO is now working. However, there is still no signal coming out of the circuit. The input signal is present at the base of Q1, but no signal is coming out of the collector/emitter. Q1 was also replaced with a 2N3904. The DC voltages in the preamplifier stage look good.
Does anyone have an idea?

Thx
Holger

#46

Open Discussion / Re: Check this BYOC news

Last post by aion - October 27, 2025, 02:26:01 PM

Is Iceland so bored they've resorted to a scam economy?    Grow your bananas, you geothermic hooligans

Apparently that site is a "buy your doing business as address here" kind of thing. Probably for tax evasion and also secrecy.
P.O. box for shell companies.

Not exactly, they just use a privacy service for the domain registration. It's an option from most domain registrars and only costs a few dollars a year on top of the domain registration. It's been the industry standard since 2010 or so because otherwise your mailing address and email address are on the public directory and they get harvested and abused.

#47

Build Reports / Re: MicroSynth Fuzz

Last post by jwin615 - October 26, 2025, 02:28:02 PM

Awesome. Thank you!

#48

Build Reports / Re: MicroSynth Fuzz

Last post by LaceSensor - October 26, 2025, 02:19:05 PM

My bad for any errors. Ive updated the first page now.

As for missing caps let me know specifically what I have mis-labelled there. thanks

It does jump from C21 to C28 with nothing in between

C28 is added to C19 in parallel. The original part of that filter schematic is not on the original MS (hence the bypass toggle) and is indeed lifted ffrom Aleph Null via a datasheet for a PT2399 delay. Is a multiple feedback Low pass filter. The freuqency can be adjusted via C19 - if you want you can just put a 680pF or whatever your preference is up to about 1.5nF ish and forget C28. I found the 680pF can be a tad limited with bass, its grand with guitar. Hence you can mess around. The pads for C28 could also be used to switch in other caps ?

This was hopefully mostly captured in my build notes, towards the end of the BOM doc

"C19 and C29 are in parallel, and approximate a 680p cap. I found it useful try one cap depending on the tone you prefer. Lower (total) values of C19 and C29 will give "peakier" and harsher treble sounds. Higher values will darken the filter. Try anything from 220p up to 2n2 in total. You can simply put a 680pf cap in either position and call it a day 😊"

#49

Build Reports / Re: MicroSynth Fuzz

Last post by LaceSensor - October 26, 2025, 02:17:49 PM

R7 is 27k

As for the wierd values, its what the schematic called for I guess

Cheers

#50

General Questions / Re: Board layout for original ...

Last post by jimilee - October 26, 2025, 01:18:49 PM

Now. I always forget about that.


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