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Altec 458A Tube Preamp Module Tested Works
  • This preamp is in very good working condition
  • The audio path is clean and quiet, free from distortion, hiss, hum, and crackle
  • Both 12AY7 tubes test well for gain and emissions
  • The input pins are clean and make excellent electrical contact
  • The electrolytic capacitor can is original
  • Serial #2022
  • Made in USA
  • Circuit Info:
    • Test Conditions: 1VAC 60Hz Sine Signal at input transformer primary should produce ~15VAC at secondary; 1VAC 60Hz Sine Signal at output transformer secondary should produce ~6VAC at primary
    • Input and output transformers pass
    • The circuit is all-original
Thank You!

This item is sold As-Described

This item is sold As-Described and cannot be returned unless it arrives in a condition different from how it was described or photographed. Items must be returned in original, as-shipped condition with all original packaging.Learn More.

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Listed10 years ago
ConditionVery Good (Used)
Very Good items may show a few slight marks or scratches but are fully functional and in overall great shape.Learn more
Brand
Model
  • 458A Tube Preamp Module
Made In
  • United States

Product safety information may be available here.

Gordon LaSalle Music CT

Southbridge, MA, United States
Joined Reverb:2014

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