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AlanP
Joined: Mar 11, 2014 Posts: 746 Location: New Zealand
Audio files: 41
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Posted: Sun May 17, 2015 3:07 am Post subject:
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Not at all, didn't answer since I'm not 100% on what's going on myself. |
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tokyomatik
Joined: Jan 20, 2011 Posts: 171 Location: berlin
Audio files: 6
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Posted: Sun May 17, 2015 10:12 am Post subject:
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u mean out of body experiencies?? |
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lunaire
Joined: Jan 23, 2009 Posts: 19 Location: Sao Paulo
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Posted: Mon Jun 01, 2015 7:42 pm Post subject:
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I think this delay might be so good people dont want u to have it.. lol
Im building one this week and wondering same things btw |
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tokyomatik
Joined: Jan 20, 2011 Posts: 171 Location: berlin
Audio files: 6
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Posted: Thu Jul 16, 2015 12:01 pm Post subject:
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inlifeindeath wrote: | PickNick wrote: | i'm still not sure what kind of regulator is 1702...
mcp1702?
can i use 7805? |
yes, it's just a 5v line for the delay chip. 7805 work fine. |
I'm not able to find any mcp1702..... so good to know that i can simply replace it with a 7805.....but do they have the same pinout?? |
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ym2612
Joined: Aug 03, 2015 Posts: 1 Location: USA
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Posted: Mon Aug 03, 2015 9:19 am Post subject:
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So, I laid out my own Zeitgeist PCB from the schematic, and last night I finished building it into a stompbox. I really like the tape-like sound it gives, but one or more of the opamps on it seems to self-oscillate really easily. Has anybody else encountered this? I may have to pick over it with a scope and maybe add some more bypass caps. |
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fluxmonkey
Joined: Jun 24, 2005 Posts: 708 Location: cleve
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Posted: Mon Aug 03, 2015 9:36 am Post subject:
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tokyomatik wrote: | inlifeindeath wrote: | PickNick wrote: | i'm still not sure what kind of regulator is 1702...
mcp1702?
can i use 7805? |
yes, it's just a 5v line for the delay chip. 7805 work fine. |
I'm not able to find any mcp1702..... so good to know that i can simply replace it with a 7805.....but do they have the same pinout?? |
NO, different pinout (as i found from hard experience... released the majic smoke). i don't have the detail to hand, check the datasheet _________________ www.fluxmonkey.com |
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gasboss775
Joined: Jan 02, 2016 Posts: 217 Location: Scotland
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Posted: Thu May 18, 2017 6:32 am Post subject:
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tokyomatik wrote: | I'm checking the board with the components and I have some questions:
what are the pots function names?? (from left to right) |
Late reply but in case you are still wondering:
From Left to Right ( P4, P3, P2, P1 )
Input Level, Wet/Dry mix, Modulation Depth ( from external CV ), Delay Time.
Quote: | The CV input is to control the delay time? |
Yes
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what is SENSOR doing?(HDR 10) |
It is an LDR, presumably to control delay time according to light level.
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what are the functions of JUMPER and the two HDR 3? jumpers for a different settings ? |
HDR_3 allows you to bypass the external CV option the jumper allows you to bypass the LDR if you don't want to use it.
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the JUMPER next to the led says + and -, should I consider - as Ground?? |
Yes -Ve appears to be ground in this circuit. As it works from a single supply.
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I will try to etch this board in these days, not so many parts and looks also an easy build...any recomendation? |
Can't say haven't built it yet, but will definitely breadboard it to try it out. |
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