NAGRA SN PORTABLE TAPE RECORDER REEL TO REEL GORGEOUS W ACCESSORIES.
NAGRA SN PORTABLE TAPE RECORDER REEL TO REEL GORGEOUS W ACCESSORIES.
Vintage audio has always been my main hobby, and now I have more time to spend on it. I focus on units in. Cosmetic condition and with low usage/wear. Many of these RTR (Reel to Reel) tape recorders were in storage for years, therefore they need thorough and comprehensive servicing. Demand has been increasing and prices have been going up, which makes them a good investment. This Teac A-2300SX is. Very clean, totally functional and fully serviced, not only mechanically but also electronically. It has very little wear. Based on the condition of. The heads and the tape transport. The A-2300 and A-3300 series are my favorite because of their very attractive and compact appearance, their great sound quality, and their robustness they are built like a tank! Replacement parts (many used but also some new) are easy to find as Teac manufactured many of these recorders. The A-2300SX is a 4 track, 2 channel (stereo), 2 speed 3. Inches per second tape deck. It records and plays in one direction only, so you have to flip the reels to record and play all tracks. It was manufactured in the mid 70’s. A note on “Serviced” or “Refurbished” recorders for sale out there. You will see many tape decks for sale with these terms used in descriptions. But you really have to know what was done to them. Often, they were merely dusted, lubricated, heads cleaned and demagnetized, capstan belt replaced, but not much more. If you are lucky, the pinch roller mechanism was disassembled and re-lubricated T his must be done! Please see my video on my YouTube channel Retired Al Fixall on how to do this. But rarely the electronic circuits were re-tuned, sadly. Out of specs and I always completely re-tune the electronics. This is a tedious process which requires a reference tape and several electronic instruments. Please go to my YouTube channel to see all my videos: Retired AL Fixall. I wrap heavy items like this one with many layers of bubble wrap and put it inside a custom fitted cardboard box. Then I place this box inside a second one with a good amount of shock absorbing material (I often use peanut fill) all around. The absorbing material is what takes the initial shock if the package happens to be dropped. The bubble wrap ensures that the reduced forces from the drop are distributed uniformly on the item in order to protect parts that protrude like the knobs for example. I have been very successful with this method, with zero complaints and even compliments from some buyers. What comes with it. See details below as it is retrofitted with a modern plug-in cable with ground for safety. Manual (Similar to A-2300SX). Copy of the A-2300SX service manual. Copy of the Teac Information Supplement. This Teac A-2300SX is gorgeous inside and out, in superb condition overall, with a close to perfect face plate only. Few extremely superficial marks on the stainless steel plate, barely noticeable. The bottom aluminum strip trim has. Small nicks but they are at the bottom so you don’t see them. The record and play heads. The recorder has no smoke smell. The side panels are in excellent condition. I refinished them with stain and sealer coats. The two black covers have no dents or scratches. A note on the components I place most emphasis, the heads. Up to h alf of the cost of RTR tape decks is in the heads. That’s because the prices of new replacement heads has skyrocketed due to low availability. Used heads are often worn out, sometimes beyond limits, and often have deep groves into them, making mechanical alignment impossible. Heads in good condition (little wear and good polish) are imperative for proper performance and good sound quality, especially in the high frequencies (treble). I have included a high resolution. Cleaning inside and out: Cleaned the side panels and sealed them; degreased the aluminum face panel with alcohol, then applied a stainless steel cleaner; detail cleaned the plastic vents at the top all the way inside the louvers; meticulously cleaned all the knobs and switches. Detail cleaned the tape transport system. Replaced the AC socket and cable with standard 3-prong models (with ground). The play and record heads and demagnetized them. Cleaned all switches and potentiometers with CRC Electronic Cleaner. Verified proper operation with no static. Checked all switches for contact resistance. You will not believe how often I found malfunctioning switches on these recorders! This is the result of contamination plus years of not being actuated, contacts get oxidized. If you are lucky, you can detect it as something will not work at all; b ut often you won’t. It will affect the sound quality. Not only switch contacts must be cleaned but continuity must be checked by switching back and forth, multiple times and measuring contact resistance. This includes the speed control switc h which is notorious for not working (one set of contacts control the play equalization). Checked belts, they were good. Disassembled, deep cleaned, and greased the pinch roller mechanism. This is a common issue with Teac decks, the grease inside dries out over years and the mechanism jams. YouTube video on this repair. Disassembled, cleaned, and oiled (synthetic oil) the pinch roller and capstan shaft bearings (they use brass bushings). Cleaned and checked the rubber on the pinch roller. Lubricated the capstan and reel motor bearings (2 little clear plastic tubes allow for oil lubrication on each of the 3 motors) with synthetic oil. Re-adjusted the pinch roller pressure in play mode and checked using a spring gauge. Verified operation of the left and right tape tensioner arms. Adjusted the brakes (the pads are in great shape). Adjusted the take-up torque and back tension for both spools. Visually inspected capacitors for swelling, leaks or other damage. Adjusted the power supply voltage (23VDC). Adjusted the Bias traps (both on record and output amplifiers). Performed Bias adjustments (normal and high bias modes). Performed alignment (including azimuth) of record and play heads (using reference tape). Adjusted gain on all amplification stages, including VU-Meter calibration (using reference tape and other instruments). Performed equalization (EQ) adjustments. Verified performance with sine wave generator, oscilloscope and AC voltmeter. I optimized the performance for high speed; the low speed is not really for Hi-Fi quality recording. Confirmed proper operation of all functions multiple times and performed record & listening tests with high grade tape (see the above mentioned video on my YouTube channel). If you are seeking a top notch Teac reel to reel recorder that is fully operational and. Serviced for a reasonable price, this is the one. But regardless, please do keep in mind that this is a 47 year old machine and that things may fail in the future. To reduce the risks, regular maintenance must be done periodically and religiously; the included copy of the service manual will help you with that. Please contact me for any questions, comments, or concerns. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Reel-to-Reel Tape Recorders”. The seller is “pigeot” and is located in this country: US. This item can be shipped to United States.
- Model: Teac A-2300SX
- Type: Tape Recorder
- Brand: TEAC