Uneven Tape Winding

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technoplayer

Recovering Gear-aholic
Ok, so this has been a peeve FOREVER with me. I have several R2R decks, and to one extent or another, they all "pack" the tape on the reel nice and flat (no edges sticking up for the flanges to crush)when a tape is played at normal speed, but make a mess of it when fast wound. Why is this, and is there some sort of alignment cure? I have theroized warped reels, worn tape guides, off center reel hubs, etc., but it seems to occur even if I chuck up a fresh reel of tape. Besides, it looks messy...
I should say that the tape tension on the reels is ok, and a few of these are servo machines which should control that anyway...
 
Is it so bad that the tape is rubbing against the reel. If not, you shouldn't worry. Scatter wind is common in FF/RW. A standard practice after using a reel is called a tight wind, where basically you rewind to the beginning and just let the tape play out. This will give an even wind for storage and the tape will be tails out.
 
All tape will wind unevenly onto reels after ff and rew. Unless tape is so far out that it's scrunched, bent, creased against the outer reel, uneven packs are normal after ff/rew.

That's why spool modes were invented. If your machine has a "spool" button, activate it at the end of the seesion and the tape will wind forward or backward onto the reel of your choice in a clean pack. Spool usually travels at a speed somewhere between play and ff.

If you do not have a spool mode on your machine, the way that a tight pack is achieved (if you plan to put the tape away for a long time.....or...if it ruins your day to look at an unevenly wound reel of tape) is to put the machine into play and let the tape travel from one reel to the other that way.
 
I discovered something interesting sometime back while experimenting with different reels and tape. I noticed that my BASF/EMTEC tapes packed very smoothly even in RWD and FFD speeds on my Tascam TSR-8. However, Quantegy/Ampex is very sloppy at these speeds. Some have complained about the cut of Ampex tape – that it isn’t as uniform as BASF.

I wonder if it might also have something to do with the reel design. I noticed that the metal reels on BASF tapes were much higher quality, being the 6-screw high precision type with superior balance and thicker metal compared to the traditional 3-screw Ampex/Quantegy style. So I spooled a reel of Quantegy 456 onto a BASF precision reel. I found that the Quantegy tape wrapped much more smoothly at high speed, and with no tape rub.

Quantegy sells (used to) the 6-screw precision metal reels, but they are a little pricy, and at this time hard to come by since the bankruptcy. They are the same as the old 3M reels, which Quantegy acquired along with the rest of 3Ms magnetic tape division back in the 90’s.

Rubbing tape will cause edge damage, so it is worth trying to eliminate it by adjusting the height of the reel tables and/or using precision reels.

By the way, one thing I don’t like about the TSR-8 is that it doesn’t have a spool mode. You have to play the tape to get a smooth pack. One of my future projects is to add a switch to engage the tape lifters in play mode to save wear and tear on the heads. For now using the precision reels helps in FWD.

The ones I use look like the 3M style below, but without the 3M label of course. They were sold by US Recording Media last year before the Quantegy crisis, but are no longer on site. You can find them on ebay now and then. The Quantegy and 3M are the same, so it doesn’t matter what you buy. The oldest reel I have of this style is labeled AGFA, so the design has changed hands several times. They are all the same reel.

Since I have only done this on a TSR-8, YMMV, but I hope this info will help some of you.

-Tim :)
 

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Hmmm..no spool mode on any of my machines, and like you I hate to run a whole reel of tape thru the heads just for the sake of a nice looking tape pack.
And unfortunately I am stuck w/ plastic reels for the 388's, at least on the supply side. I suppose the LOAD function on the 388 would kinda act like a SPOOL function, but only going forward !!
Thanks
John
 
My 388 wouldn't wind very well unless I played it from the beginning of the reel to the end. One thing you can do to speed it up but still get a tightly packed reel is to play it back with the pitch all the way up, that way it plays through faster.

-MD
 
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