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Anyone knows WHEN IT'S QUAD by using a Technics SH-3433 AUDIOSCOPE

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w.a.reid

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Last edited:

kvadro

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There is a copy of the service manual for sale on EBay, item number 350213785435 Also, a unit is available, item number 350282275405


MTGC (Michael)
THANKS MTGC for the links
I still need the OPERATING INSTRUCTION manual in english or french, can anyone help me on this one
Thanks
 

scifi

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Check out these patents.

quadraphonic oscilloscopes

US 3806648

US 4135203


381/19.ccls.

US 3360606

US 3375329

US 3710034

US 4010668 Polysonic electronic system for a musical instrument and methods of
utilizing and constructing same
quad guitar

http://www.google.com/patents?hl=en
 

MidiMagic

400 Club - QQ All-Star
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Jul 5, 2010
Messages
425
I built something like that.

But you can tell with an ordinary oscilloscope connected in X-Y mode to the stereo channels (connect left to vertical).

- Left channel info shows as a vertical motion.
- Right channel info shows as a horizontal motion.
- Items panned to center (front) in stereo, RM, or SQ appear as a 45 degree diagonal with the top at the right of the scope.
- Material in the back channels of RM, QS, EV, and Dolby Surround shows up as diagonals with the top at the left.
- SQ back channels, and UMX center front and center back show up as circular motions.
- Multiple sounds show up as a scrambled wiggly area. Stereo shows up with the wiggly area as an ellipse with the long axis diagonal with the top at the right.
- Surround shows up as a circular wiggly area.
 

JonUrban

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Please note that the original author of the above plagiarized article posted by SciFi is QQ Member Donald Patten.
 

Old Quad Guy

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scifi

500 Club - QQ All-Star
Joined
Apr 4, 2010
Messages
500
Location
US of A
Some quad o-scope patents:

US 3806648 Apparatus for Displaying the Relationship Between Four Signals

US 3892478 Sound to image translator


quad cartridges:

US 3846592 Phonograph Pickup Cartridge for Four Channel Recordings

US 3881073 Replaceable stylus-lever generator module for an electromagnetic cartridge
Grado

US 4031336 Electromagnetic pickup with magnetic gap displacement generator
Grado

US 3954273 Phonograph pickup cartridge
 
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