I hope you get your hands on some good Japanese stuff! Fully operational and serviced. In addition to accurate and stable tape feed operation that has cleared various measurements, the analyzer analysis has achieved sound source playback that meets expectations. A masterpiece in a thin, sliding cassette case size! For those who are looking for a fully working product with high sound quality. Overhauled and ready to use as is. Based on a well-preserved unit, all defective parts due to age have been replaced with good quality parts stored in a moisture-proof cabinet, and special adjustments have been made in various areas. This is a product that has undergone maintenance, performance checks, and repeated testing in pursuit of high sound quality. The board, electronic parts, reproducing head, motor, drive gear, drive belt, roller, and amplifier are in good condition, so you can enjoy the analog hi-fi machine of those days. Torque meter confirms strong and stable rotational power. For those who value sound, mechanical condition and power. (Included) SONY cleaning tape C-1K (new and unused). Cleaned capstan, belt contact surface, and replaced drive belt with the best genuine equivalent, Head cleaning and angle adjustment, head demagnetization, roller care (cleaning and light polishing), lubrication, speed adjustment, The head was clean, but oil film inside the volume parts was removed with 00 (secret), and contact points were restored in all parts including the circuit board. In addition, a unique treatment has been applied to prevent deterioration of the internal mechanism. The motor shaft is lubricated with highly refined spindle oil. Grease is applied when assembling parts. Re-soldering of solder cracks and areas of concern such as the back of the head, circuit board, and wiring. Speed adjustment was done using a test tape, and after pinpoint readjustment with a high-performance guitar tuner, it was confirmed with a commercially available music tape. The head angle (azimuth) was adjusted using a test tape, and the Lissajous waveform was observed with an oscilloscope for final confirmation by listening to the sound. Wah flutter (uneven rotation) was checked using a test tape and a checker. Appropriate for the equipment. Check the rotational force during playback, fast forward, and rewind using a torque meter. Tested with an AA battery before the exhibit. Repeatedly tested over a long period of time. Playback check (Smooth movement, no shaking or missing gear sound) Fast-forwarding Confirmation Rewinding Confirmation Stop (stop) Confirm Indicator light on Volume control Confirm operation Auto shut-off Confirmation Electromagnetic noise is suppressed to the lowest level. The drive belt used is of the highest quality and durability, The drive belt used is of the highest quality and durability, so there is no hardening phenomenon after several months of use, as is often the case with inferior imported belts. We cannot change an address after the order has already been placed. Packages:Box or Envelope and Bubblerup. Sometimes we use reused packing materials to protect the earth! We provide valid Tracking Numbers for all orders. If you have any questions or issues, we are at your service. We will reply to your question or invoice within 3 days. We can’t not reply gifts or unreasonable requests such as declared amount.