Mad Scientist On Stage - Refurbished

70's Medical Hearing Test Machine - Musically Useful for: • Tones (9 of them: continuous or pulsed) • White Noise Generator • Mic and line input • 4 position Equalizer (for line input): Bass cut, Normal, High Cut

Unit refurbished to fully working condition. Made in the USA in the days of Analog synths - all discrete components: no ICs! - Quality medical equipment with that 1970's Sci-Fi look - Great Stage Prop! - Sound Source - Or you can actually use to scientifically test how far your hearing is gone!

Features:

• Tones (9 of them: continuous or pulsed)
• White Noise Generator
• Mic, Mic and line input
• 4 position Equalizer (for line input): Bass cut, Normal, High Cut

Detail Features:

• Tone Generator: 9 Tones: 250 / 500 / 1000 / 1500 / 2000 / 3000 / 4000 / 6000 / 8000 Hz: either continuous, or pulsed (about 1 Hz pulse rate) - To be sent to outputs: "Air" (Head Phone Jack: Left and Right separately) or "Bone" (7 Tones - all except: 6K and 8K) - • White Noise Generator - sent to Head Phone jacks: Left Right separately switchable: (either TEST SIGNAL (Tone, Mic, or line in) or WHITE NOISE (Masking) - Separate level controls for Test Signal (HTL) and White Noise (Masking), -2.5 db mute button for HTL comntrol (to determine low end of audibility) • INPUTS: MIC, Line ("Tape") with Monitor Ouptut jack - Input level control with VU meter for Mic, Line ("Tape") • 4 position Equalizer (for line input): -12db Bass cut, -6db Bass Cut, Normal (Flat), -6 db High Cut • Operation indicator Lights (Orange lamps)

Work performed on this unit: Treated controls and switches with contact cleaner, lubricated, tested capacitors, fabricated adapter cable to make it usable - - It is hard to work on this machine - I spent more than 4 hours on it - now works well

Lot: Hearing Test Machine, Original Condensor Micrpohphone, Adapter that I fabricated: from 2 x 1/4" mono to 3.5 mm stereo - which allows: to use modern head phones or to feed sound to modern equipment

PURCHASE AGREEMENT - All Sales are: "AS-IS”, FINAL - and: NOT RETURNABLE, NO REFUNDS: LET’s do all that is needed to make sure to get you exactly what you need - BEFORE your purchase (Not returnable)! PLEASE ASK QUESTIONS - I am here to assist. All items are used and VINTAGE - sold "AS-IS" (-> vintage = often 45+ years old!!!) and even with the best of refurb / repair work STILL CAN FAIL) and thus is sold without warranty or guarantees of any kind (AS-IS). I aim to perform all work that I foresee necessary, to provide equipment in well and reliably working condition - refurbish in as much detail as possible - and test thoroughly, to gain confidence through testing, to predict that it will last, but cannot guarantee that. Once work complete, it is still possible that something be wrong or can go wrong with it (vintage!) - Prices of items offered here reflect the work that went into a given piece of gear until it is listed, but cannot cover what a given piece may need or may need in the future - that would be at your risk and expense - If there are defects, problems or shortcomings: I will be glad to help and likely I can repair, but it will be at additional cost - I do service what I sell at my regular shop rate. Any shipping costs responsibility of the buyer.