> I worked on a digitizing project for Universal
> music some years ago, doing several thousand
> tapes. I totally agree about Ampex 456 - the few
> we didn't bake sure smelled like they would need
> baking, but weren't shedding, just yet.
I have seen it stated that Ampex/Quantegy 456 is good after 1994 and
stock made before that year needs baking and stock after that is fine.
If what I have experienced this is not correct.
I have had 456 tapes bought new in 2001 transferred cleanly by me from a
Studer A820 the same year to be SSS when trying to transfer again the
exact same tapes in 2008.
> We never encountered a Basf tape that needed
That agrees with my own experience and my sources within Swedish Radio
who used tons of BASF and AGFA tapes agrees so far.
> and the same for Agfa with one, big
> exception and that is PEM 469, until they changed
> the formulation sometime around 1990. All earlier
> 469's were baked.
The AGFA 469 tape has been so rare for me that I simply have not enough
experience to have any opinon but what I have had so far is OK.
The official info from AGFA sources in Sweden was that production during
about half a year for AGFA 468 would go SSS.
469 was not mentioned at all.
> A few 468's were also a bit
> sticky and were baked and then played fine, but
> if that was SSS I don't know.
I do believe that this is SSS as that is what I have heard from AGFA
Sweden and they claimed that it was from certain batches during half a
year or so.
A long time friend since the early 70┤s who passed away some time ago,
Mats Hellberg, producer/engineer/drummer/record label owner/ used AGFA
468 almost his whole career and we never saw SSS from his use of AGFA
Mats Hellberg and I noted some shedding from the matt backing, sometimes
a lot, for certain lots of production, but this occured only during part
of the 80┤s and this never went sticky shed so I see it as no big deal
since after tape cleaning it played just fine.
The AGFA 468 coming from RMGI was felt by Mats Hellberg to be a clone
for AGFA 468, based on a few hundred reels bought, and I personally saw
no problems at all when trensferring his tapes to digital to make the CD
The actual shed on tape guides, heads etc, was so insignificant that
even using a magnifying glass at 8X, almost nothing could be seen after
having transferred 10 reels in a row.
The Mastering Room AB
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