FX747 Supersonic Stereo Flange

Both cosmetic variants of the FX747 Supersonic Stereo Flange, from mid- (left) and late 1996

The FX747 Supersonic Stereo Flange was introduced at the Summer 1996 NAMM meeting. Although it was largely based on the FX75-B's circuit (with an analog MN3007 BBD chip, but modified for the new "final series" chassis design), the FX747 did not immediately replace the FX75-B in DOD's lineup. Two cosmetic versions of the FX747 exist, with or without the "real" control names on the top row just above its control knobs. The FX747 was "discontinued" in early 1998 with the release of the final-series FX75C, but the two pedals were identical in all but name.

• Controls: Payload (Level), Mach (Speed), Altitude (Width), Thrust (Regen)
  
  
• From the manual: "The FX747 Supersonic Stereo Flanger [sic] is DOD's newest answer to an old argument: "To flange or not to flange?" The FX747 Speed or MACH control has an extended range allowing it to flanger slower than any other flanger made. This allows you to play "into" the effect, rather than "with" the effect. Give your guitar or bass a full on, jet-like sound, or just take a spacey trip to the ozone."
  
  
• Suggested retail price (1996): $119.95
  
  
• Notable IC chips: one MN3007 analog BBD chip; four BA4558 op amps
  
  
• Internal trim pots: unlike the FX75-B, the FX747 has no internal trim pots
  
  
• Related circuit: FX75C, GFX75
  
  
• FX heritage: FX70 FX75 FX75-B FX747 FX75C
  
  
• External links:
  • @ discofreq's FX site
  • @ harmony-central.com
  • @ noiseguide.com
  
  

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