SpecSheet Tercel Phono Preamplifier Kit

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Phono Stage

  • Topology:3-stage Class A Triode with passive RIAA filters, zero feedback
  • Tubes:2 x 12AT7 Dual Triodes; 1 x 12AX7 Dual Triode
  • Gain:42dB in MM; 62dB with optional LOMC installed
  • RIAA:+/- 0.2dB 20Hz - 20kHz
  • Hum and Noise:75dB
  • Input impedance:MM= 22k - 68k ohms adjustable + 0pF - 50pF loading; LOMC = 90 ohms
  • Output Impedance:160 ohms
  • Max Output Voltage:1.5V rms @ 1kHz

Inputs/Outputs

  • Phono Inputs:2 MM std; 1MM + 1 LOMC Opt.
  • Main Output:1 RCA

Power Supply

  • Primary Voltage:120VAC std. 240VAC opt.
  • Line Cord:IEC Connector/6-foot cord
  • Rectifier Tube:12X4 Dual Diode
  • B+ Supply:Unregulated C-L-C with 1,080uF storage
  • Filaments:Regulated 6.30VDC

Physical

  • Dimensions:11-1/2"W x 7"H x 12-1/2"D
  • Weight:12lbs
  • Packed:14"W x 14"L x 10"H

Options

  • LOMC:Optional LOMC transformers with 20dB step up ratio
  • Coupling Capacitors:Optional AuriCaps throughout
  • Xtreme Power Supply:2,700uF storage capacity
  • Assy:Factory assembly optional

Kit Construction

  • Experience Level:Beginner + Soldering Technique
  • Construction Time:About 12 hours
  • Wiring:90% Printed Circuit Board
  • Manual:Step-by-step manual included