1994 National Delphi Resonator Guitar

Overview: Back in the '90s, the reinvigorated National company (National Reso-Phonic, or NRP) was still just a fairly small operation. These days, you can find their products all over the place. This Delphi model is more or less similar to an early-'30s Triolian with its steel body and 12-fret neck joint. The proportions of the neck, the scale length, and the overall design echo them.


Tone: It's loud, punchy, and carrying, with a good front "snap" to each note and some lingering, reverb-like sustain as you expect on a metal-bodied resonator guitar.


Feel: It has a bigger neck profile with a bit of a soft V to its rear and an almost-flat fretboard radius. Honestly, it handles pretty-much like a vintage National would, save that it has decent binding on the fretboard edges.


Interesting features: The finish is unusual -- a light grey color with a whiter center "sunburst" sort-of effect. It's eye-catching, really, because so few resonator guitars are colored similarly.


Repairs included: I gave this one a neck reset and, at the same time, taught Jose how to do so -- it can be tricky! I then added my usual extra "dowel shim" where the dowel meets the body at the neck joint -- which adds some rigidity there so the neck doesn't move around in service. After that, Jose gave it a level/dress of the frets, worked on the saddle and made sure it's compensated correctly, and set it all up for fingerpicking-friendly, easy-peasy action. It's buttoned-up and humming, now.

  • Weight: 8 lbs 15 oz
  • Scale length: 25"
  • Nut width: 1 13/16"
  • Neck shape: medium-full soft V
  • Board radius: 20"
  • Body width: 14"
  • Body depth: 3"
  • Body: steel
  • Cone type: single cone biscuit
  • Bridge: maple
  • Fretboard: rosewood
  • Neck wood: mahogany
  • Action height at 12th fret: 3/32” bass 1/16” treble (fast, spot-on)
  • String gauges: 54w-12 lights
  • Truss rod: adjustable
  • Neck relief: straight
  • Fret style: medium

Condition notes: It's pretty absurdly clean throughout but may show the tiniest bit of usewear here and there. As far as I can tell, it's completely original as well.


It comes with: It has its original hard case.


Consignor tag: SRB
















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