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 Post subject: Not what you want to see while recording
PostPosted: Oct Sun 20, 2019 5:50 pm 
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guess I have another take up reel :shock:


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 Post subject: Re: Not what you want to see while recording
PostPosted: Oct Mon 21, 2019 12:08 pm 
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I think it's bad tape, not a bad take-up reel. The oxide appears to be rubbing off as it passes under the tape guide.

Dave


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 Post subject: Re: Not what you want to see while recording
PostPosted: Oct Mon 21, 2019 12:17 pm 
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Is it “Sticky Shed”, a problem with the binder of some tape made in the 70s or 80s? Ampex had a lot of problem with it.

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 Post subject: Re: Not what you want to see while recording
PostPosted: Oct Mon 21, 2019 5:53 pm 
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It's not a bad take-up reel, it's that the reel is the only thing of value that will be left once you're done recording. Well, that and maybe some "leader" tape.


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 Post subject: Re: Not what you want to see while recording
PostPosted: Oct Mon 21, 2019 8:15 pm 
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um... Yeah, I meant that I disposed of the tape and now have another empty reel to use as a take up reel.

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 Post subject: Re: Not what you want to see while recording
PostPosted: Oct Wed 23, 2019 1:01 pm 
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What was the brand of tape?


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 Post subject: Re: Not what you want to see while recording
PostPosted: Oct Wed 23, 2019 1:12 pm 
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Artcurus wrote:
What was the brand of tape?

who knows, it was on a Sony reel, the type that came as a take-up reel with lower end decks. any more unless it is in a factory sealed box, I don't believe anyone who tells me exactly what tape is on a reel.

good thing is it seemed to only shed where it was going through the pinch roller and a good cleaning cleared everything up.

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 Post subject: Re: Not what you want to see while recording
PostPosted: Oct Fri 25, 2019 4:00 pm 
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Even though I have a soft spot for vintage TDK, most new production has surpassed old formulations. It's better to bias the deck for whatever brand you prefer and move forward. On old tape, avoid Ampex, Sony, some TDK variations. If the leader has not been tampered with it will tell you the brand of tape.


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 Post subject: Re: Not what you want to see while recording
PostPosted: Nov Sat 09, 2019 1:19 am 
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Far as old tape goes I find Scotch to hold up well.

A lot of the tapes I have are Scotch and they are still just as good as when new.


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 Post subject: Re: Not what you want to see while recording
PostPosted: Nov Sat 09, 2019 2:21 pm 
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IF there is leader on the tape it may reveal the maker, possibly. But it may be fully magnetic tape at the ends. Some day I need to overhaul my 50 pound Teac deck. The weight and size are what I find daunting.

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 Post subject: Re: Not what you want to see while recording
PostPosted: Nov Wed 13, 2019 1:15 am 
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Tube Radio wrote:
Far as old tape goes I find Scotch to hold up well.

A lot of the tapes I have are Scotch and they are still just as good as when new.


TR,

Be careful about 60's and earlier vintage Scotch, its extremely abrasive on newer heads.

70's and later about half has gone sticky.


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 Post subject: Re: Not what you want to see while recording
PostPosted: Nov Wed 13, 2019 3:13 am 
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Not sure when my tapes were made.

I know one was recorded in 63, but it is too fragile to play.

The earliest Scotch tape I have that is playable may be from 73.

I use an AKAI GX series reel to reel anyways so no real worries there about the heads wearing anytime soon, although I still treat it with care as to what tapes I play on it.


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 Post subject: Re: Not what you want to see while recording
PostPosted: Nov Wed 13, 2019 2:59 pm 
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If you have a tape deck that has a transport that is somewhat easy on the tape, you can play it, maybe play it and transcribe it to another medium or tape. I have many HiFi Tape recordings, original, 1958 that I play on my TEAC decks. That tape is Acetate as opposed to Mylar.

Acetate is very brittle so if possible, with a lot of tender care, they can survive.

But much of the AMPEX and Scotch tape from ~ mid 70s onward suffers from this. It is a strange sound when the tape starts squealing and jerking. I experienced it way before finding out about this issue.

Maxell has not demonstrated this problem.

A link:

https://en.wikipedia.org/wiki/Sticky-shed_syndrome

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 Post subject: Re: Not what you want to see while recording
PostPosted: Nov Wed 13, 2019 4:13 pm 
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The one tape I think might have been due to storage conditions before I got it or maybe it was as you said. Not really sure.

I had already copied it to cassette years ago and recently played back the original tape and found it was slightly fast which may have been a fault of the original recorder used to make the tape and as expected I had more breakages.

Oddly enough I happened to find a copy I made on a reel to reel that ran slightly fast and when played back on my AKAI, the speed was exactly correct or close enough to where I couldn't tell the speed was off so I used that copy to record it to my computer.


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 Post subject: Re: Not what you want to see while recording
PostPosted: Nov Thu 14, 2019 11:16 pm 
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Maybe the tension arm to the right of the pinch roller has a worn spot or sharp edge that's scraping the tape, or maybe it's mis-aligned.

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 Post subject: Re: Not what you want to see while recording
PostPosted: Nov Thu 14, 2019 11:19 pm 
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Nope, it was junk tape, none of my other tapes do that.

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 Post subject: Re: Not what you want to see while recording
PostPosted: Nov Sun 17, 2019 12:23 am 
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That reel of tape has "sticky-shed syndrome." Don't use it.

But if you have an archival reel of tape where you want to play it one time to transfer its contents to digital, it is possible to temporarily "fix" the sticky-shed issue by gently "baking" the reel of tape at a temperature of about 150 degrees F.

There's an awesome forum for tape lovers:

http://www.tapeheads.net

I highly recommend it to everyone who is interested in vintage reel-reel or cassette machines.

-EB


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 Post subject: Re: Not what you want to see while recording
PostPosted: Nov Thu 21, 2019 10:23 pm 
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With tape problems the things you need to know are tape type,
tensions, and wind.

Tape type: is it acetate or Mylar base and thickness.

Tensions:

Take up spool tension. Taken at the start of the take up spool and then at the finish.
Supply spool tension: Taken at the same , start and finish.

Wind:

The pull on the tape exerted by pinch roller with tape not moving.

All the factors contribute to speed stability in domestic tape recorders.
They also affect what happens to a tape when used on a particular machine.

Mylar stretches, acetate breaks.

Paper base tape: If still around and has valued content, ask a
museum .


The Ampex forum has many answers.

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