DIY the Tunze 7091 Single Controller

BayAreaReefer · 10/05/2009, 10:50 PM

Hi,

I was wondering if anyone had tried to DIY a Tunze 7091 Single Controller to get a much lower timing in milliseconds rather than seconds. I would be interested in hearing your thought on how to do that or if its possible.

I've seen XTM schematics on using a 555 IC timer, does the 7091 has one that we can swap out as well?

thx

elfa · 11/13/2009, 04:47 AM

Did you ever get any answer? I have been wondering about the same thing, it seem s that I need a puls in the subsecond range in order to get a wave.

Vidar

der_wille_zur_macht · 11/13/2009, 08:14 AM

Considering how cheap it would be to just build XTM's design, why not just do that? It's probably $5 in parts. If you have a 7091 you could sell it and end up making money in the end.

10/05/2009, 10:50 PM	#1
BayAreaReefer Moved On Join Date: Sep 2004 Location: San Jose, California Posts: 20	DIY the Tunze 7091 Single Controller Hi, I was wondering if anyone had tried to DIY a Tunze 7091 Single Controller to get a much lower timing in milliseconds rather than seconds. I would be interested in hearing your thought on how to do that or if its possible. I've seen XTM schematics on using a 555 IC timer, does the 7091 has one that we can swap out as well? thx

11/13/2009, 04:47 AM	#2
elfa Registered Member Join Date: Jun 2002 Location: Oslo Posts: 197	Did you ever get any answer? I have been wondering about the same thing, it seem s that I need a puls in the subsecond range in order to get a wave. Vidar __________________ 930 liter cube Current Tank Info: 930 liter cube

11/13/2009, 08:14 AM	#3
der_wille_zur_macht Team RC Member Join Date: Sep 2003 Location: NY Posts: 17,749	Considering how cheap it would be to just build XTM's design, why not just do that? It's probably $5 in parts. If you have a 7091 you could sell it and end up making money in the end. __________________ Inconveniencing marine life since 1992 "It is my personal belief that reef aquaria should be thriving communities of biodiversity, representative of their wild counterparts, and not merely collections of pretty specimens growing on tidy clean rock shelves covered in purple coralline algae." (Eric Borneman)