MN3207 and MN3102..I'm looking at them.

Started by petemoore, October 15, 2008, 09:36:22 AM

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petemoore

  I think I can pull them from the board without destroying them.
  The step before that would be...find an application for them.
  I know it's 'backward-salvage' [inverse of choosing design then locating the components.
  But what are some possible applications for the chips.
  The loaded PCB came from an new "Diplomat" [4 effect unit], which was actually pretty cool except the reliability was...really low...I fixed a few of them, this was the 'surplus salvage' unit used to repair the others / leftovers donated to the fixer [me].
Convention creates following, following creates convention.

Mark Hammer

There is an adaptation of either the Zombie or CE-2 using the 3207/3102 combo in the gallery, I believe; the Luix Chorus(?).

A 3207 is also able to yield a decent slapback echo.  Keep in mind that if 4096 stages is able to deliver 350ms with reasonable bandwidth, then there is no reason why 1024 stages couldn't be enticed to deliver 100ms with modest bandwidth.

The other thing an experimentally-minded guy like yourself can try is to make a very short delay with a splitter/mixer combo, and use it to adapt an outside device to make through-zero flanging.

Ice-9

How about designing your own circuit for a  flanger/ chorus effect.
www.stanleyfx.co.uk

Sanity: doing the same thing over and over again and expecting the same result. Mick Taylor

Please at least have 1 forum post before sending me a PM demanding something.

lowstar

boss bf-2
dimension c chorus

cheers,
lowstar
effects built counter: stopped counting at 100

oldschoolanalog

Sweepable comb filter in an old wah casing; aka: manual flanger. You could put a resonance pot on the side of the casing.
Simple build, and lot's of fun to play with!
Dave
Mystery lounge. No tables, chairs or waiters here. In fact, we're all quite alone.

petemoore

Sweepable comb filter in an old wah casing; aka: manual flanger. You could put a resonance pot on the side of the casing.
Simple build, and lot's of fun to play with!

Dave
  Great 'solution ! Always wanted one of those since I had a Ross Flanger way back when.
 
  http://www.google.com/search?q=MN3102+data+sheet&rls=com.microsoft:*:IE-SearchBox&ie=UTF-8&oe=UTF-8&sourceid=ie7&rlz=1I7DKUS
  Alldata sheets = no data found, all of many links tried lead there.
  I'll search for some other related schemata to hopefully draw from.
 
Convention creates following, following creates convention.

Mark Hammer

If the idea of a sweepable comb-filter appeals to you, then consider adapting the Anderton Pedal Flanger from SAD1024 to MN3207.  The use of the 4047 is optional.  In the case of that schematic, the 4047 is used as the clock source, and the 4007 merely adjusts a key resistance that governs clock frequency.  You can do the same thing governing the 3102, or you can decide to opt for the higher potential clock frequencies of the 4047.

http://hammer.ampage.org/files/Anderflange1.PDF

petemoore

  A couple immediate hurdles.
  The SAD chip has more pins on it than the MN chips do.
  I can't find a data sheet for the MN chips.
  Thanks for the input, I might get another round of entusiasm for Flange building sometime after I get and go over an amount of information that produces the abstract lumens of light from the other end of the tunnel.
Convention creates following, following creates convention.

oldschoolanalog

Mystery lounge. No tables, chairs or waiters here. In fact, we're all quite alone.

snap