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In Reply to: RE: Teac X10R reel drag. posted by mr9iron on December 23, 2020 at 12:27:16
First thing first - you need to eliminate the possibility of SSS - Sticky Shed Syndrome, that afflicts many older tapes. Your description sounds like it.
What tape are you using? Some are more prone to SSS than the others. There are tons of information on SSS on line, including the tapes that are most prone to it.
I would clean the transport, and then try different brand of tape - for instance the Maxell tapes usually are fine.
Or "even more better" - use some brand new tape.
Follow Ups:
Victor,
thanks for the info, not knowing much about the R2R world, I didn't know about SSS. I do not have any new tape, as this came with some older tape I think it's 3M. I assume, even if left in its container, SSS could still occur if it's old. I know it has to be at least 12 years or older.
I do not have any new tape ATM. I am guessing there is no way to eliminate this possibility until I get some.
Pulley's wheels and tape head are clean and free moving, and cleaned the heads. The heads had some minor grime when I cleaned with alcohol, nothing unexpected.
Is there anything else that could be gleaned from the videos I have the link to?
again much appreciated
The tape sticky shed syndrome is caused by the oxide coating peeling away or being delaminated from the tape. You could try to restore them by
baking them in the oven. According to some experts, you could set up the temperature in the oven at 130 F or thereabout to avoid melting the tape. Baking time should be around 6-8 hours again depending on the oven being used.
If a thing's worth doing, it's worth doing well
(Proverb)
Edits: 12/23/20
I cannot detect any residue or stickiness on any of the mechanisms or pulleys, is still possible that this is what's holing up the reels? If I touch the the tape itself with my fingers would I be able to determine if it is sticky?
thanks!
Does your machine do this? The reels will make screeching or squeaking sounds, and the tape will leave dusty, rusty particles on the guides and heads. In some cases, the symptoms are more subtle, causing intermittent dropouts of the sound.
If a thing's worth doing, it's worth doing well
(Proverb)
Kootenay,
Interesting, no residue, no screeching sounds, I found a you tube example of the screeching noise and I have nothing like this sound at all, though the example does simulate my slow FF and RW issue, as can be seen in the examples I linked to..
https://www.youtube.com/watch?v=PLEjOoRS_cM
Looking at your videos (very useful), I'd guess now that the belt is stretched, just enough to lose contact when most of the tape is on the take-up reel. Given its age and lack of recent maintenance it certainly is due for a replacement belt.
One of the YouTube videos shows how to replace the belt. Me, I'd leave it up to my tech.
Dave,
thanks for taking a look, appreciate it, would I be able to hear the belt slipping, or anything I could do to further the suspicion? I think I have an extra belt, I'll see what kind of a chore it is to replace it. I am pretty good with vintage (tube) pre-amps and amps, but this is foreign to me, it's not just electronic, it's very mechanical with tons of moving parts. I don't think there is a tech near me that deals with r2r, I am in the Seattle area.
thanks again!!
Sounds like it's time for a do-over proper maintenance by a tech.
If a thing's worth doing, it's worth doing well
(Proverb)
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