I love this conversation (and Slovacs, Fritz)...
But...Can I get any insight for us Chamberlin folks"
My tapes are all original from circa 1980 - but what did Richard use at
that time (black now-shiny stock)? They sound pretty good at this point
other than my wobbly problems...
Speaking of wobblies -- with Chamby M-style 1/2" 8-track, does rounding
the corners on the pinchies mess up the head contact on the outer tracks
(remember how narrow the tracks are)? Is the other part of the solution
to wobblies softening the rubber and/or replacing if softening does
round them well enough? How does felt-matting factor in to good push pad
performance and adjustability?
And, BTW, is the pinch roller on the 400 the same diameter as on the
Chamberlin M's with a similar axle and connection?
Martin, anyone - come on...help us out...
Vance
-----Original Message-----
From: Ken Leonard [mailto:
ken@...]
Sent: Friday, January 07, 2005 9:02 AM
To:
Mellotronists@yahoogroups.comSubject: Re: [Mellotronists] Last Manufacturer of Pro Analog Audio Tape
Closes
>If I were ∗either∗
>of the Mellotron suppliers, I would be buying as much
>of the newer, high quality tape that I could get my
>hands on and engineer the machines and repairs to just
>DEAL with it.
Easier said than done. Newer tape stock is thinner and has a different
formulation on the drive side that doesn't drive as well as the old
stuff. Our tape providers have experimented with different stock, and I
have some from a few years back that's not really playable because of
the
formulation (the stock in question is no longer used for obvious
reasons).
Pierre V. did an experiment once where he put something on the capstan
(or
was it the pinch rollers?) that gave much more grip, but he snapped a
few
tapes when they got to the end. :-) So it's a balancing act.
For the pinch rollers I tend to take off the edges and scuff them with
emery cloth, clean them, and apply CAIG rubber rejuvenator. Does it
work? Pah! Some stock still sucks. That EMI stock is no problem, and
I've even had mostly good luck with the Ampex 456 sets I have.
Martin turns his pinch rollers into tyres (tires for us American types
:-)
) by really rounding off the edges. They look like what' you'd see on a
motorcycle when done.
But maybe it's not the pinch rollers but some other part of the machine
that could use adjustment in order to better drive the tapes. Keep in
mind
that there's constant back tension on the tape due to the return
spring---that doesn't help.
Markus/Martin: Are you looking into the designs of your machines to
drive
the newer tape formulations? It sounds like there is general
satisfaction
with the way available tape stock is running, so there's no real need
for a
redesign.
>I'm not interested in buying antiquated
>tapes at 250.00 a set.
The tapes from the 70s do hold up really well, strangely enough. I've
seen
enough sets of them. The set that I got in the Mouseotron would have
been
fine except for the mouse goo all over them (and 2 tapes being spliced
with
masking tape). I bet I could still clean them up and get them to play
OK.
I never liked "planned obsolescence", as the Quantegy people have
foisted
on their customers (reportedly) to make more money when they have to
rework
archive tapes. But it is understandable that tape has a shelf life and
will eventually go downhill, just like anything else.
...kl...
M400 #805 - kl is going downhill
M400 #1037 - ...and is largely obsolete
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