Thorens TD124 overhaul

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Comments

  • nspindel
    nspindel Posts: 5,343
    edited February 2013
    Great job! So how does it sound?
    Good music, a good source, and good power can make SDA's sing. Tubes make them dance.
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  • [Deleted User]
    [Deleted User] Posts: 7,658
    edited February 2013
    Thanks, I appreciate the comments.
    I've listened to the setup on the basement gear and was mostly working to get a feel for the operation of the table. It has a unique platter clutch mechanism that allows the main platter to keep spinning while the upper, thiner platter is stationary. This makes changing records easier and keeps the motor/belt/pulley assembly spinning. Also the cuing lever on the tonearm is a bit finicky combined with the repair I had to do meant I was mostly interested in how things were moving. Kind of similar to working on a car, you want to make sure it starts and runs okay before a serious test drive.
    The measurements were: cartridge output: 3.4mV both channels within 0.1dB, channel separation: 29.1dB (left minus right) and 18.2dB (right minus left), tracking ability: 80um (both channels), frequency response was within 1.0dB from 1-12kHz with a 4.5dB peak at 15kHz (180pF load, 47kOhm). The table was exactly 33.3 rpm, vertical resonance below measurement, lateral resonance 8Hz (with Shure stabilizer down).
    I plan on listening to it on the main system as soon as I have finished listening to a Fisher 400-C preamp and Fisher direct drive turntable combination I want to play for a few days.
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  • SCompRacer
    SCompRacer Posts: 8,500
    edited February 2013
    Outstanding job Ken! My old Tektronix 466 flat lined, won't trace. You don't by chance fix them too?:cheesygrin:
    Salk SoundScape 8's * Audio Research Reference 3 * Bottlehead Eros Phono * Park's Audio Budgie SUT * Krell KSA-250 * Harmonic Technology Pro 9+ * Signature Series Sonore Music Server w/Deux PS * Roon * Gustard R26 DAC / Singxer SU-6 DDC * Heavy Plinth Lenco L75 Idler Drive * AA MG-1 Linear Air Bearing Arm * AT33PTG/II & Denon 103R * Richard Gray 600S * NHT B-12d subs * GIK Acoustic Treatments * Sennheiser HD650 *
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  • [Deleted User]
    [Deleted User] Posts: 7,658
    edited February 2013
    Ah, probably the vertical amplifier. I use a venerable H-P 1740A that I've had forever, now they're 1/4 the size and price.
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  • DON73
    DON73 Posts: 516
    edited February 2013
    Beautiful work Ken. Wonderfully simple elegant mechanism.
    TO ERR IS HUMAN. TO FORGIVE IS CANINE.
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  • Speedskater
    Speedskater Posts: 495
    edited February 2013
    I recall a couple of years ago, another Kevin on another forum had a very technical TD124 thread that went on for some hundreds of posts!

    Are they really going for good money on e-bay? I have an old one in storage.
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