Re: [ARSCLIST] , formerly [ARSCLIST] Advice for filtering surface noise

["Copeland, Peter" <Peter.Copeland@xxxxx>]

Dear All,
    With my British "hat" on, I should like to advocate a British substitute
for "The Packburn". This was originally called "The Mousetrap", but is
currently called "The Front End", and has several practical advantages over
the "Packburn".
(1) It still has the "archivally-valid" advantage of choosing the quieter of
the two groove walls at any instant, so it reduces the surface-noise while
not touching the wanted sound.
(2) The pickup preamplifier precedes this part of the circuitry, so a nest
of interconnections to get a Packburn running for lateral or vertically
modulated grooves is not needed.
(3) I have been told how the "Front End" achieves better results than the
Packburn, but I'm afraid this is a trade secret which I must keep. But the
result is considerably better than the Packburn. The sliding low-pass filter
features of the Packburn are not incorporated.
(4) But declickers analagous to those on the Packburn are included, two
devices working with high frequences and low frequencies. But personally, I
prefer to follow the "Front End" with a CEDAR declicker.
(5) The "Front End" also incorporates three variable-turnover equalisation
circuits for all the standard equalisation curves known to myself as a
British disc engineer, so the disc may be equalised in the same box, and
subjective judgements of declicking optimised. So high-level equalisation is
therefore unnecessary, and it is not necessary to combine it with a phono
pre-amplifier.
Peter Copeland

-----Original Message-----
From: Otto Striebel [mailto:Striebel-Kirchheim@xxxxxxxxxxx] 
Sent: 28 September 2004 18:44
To: ARSCLIST@xxxxxxxxxxxx
Subject: [ARSCLIST] AW: [ARSCLIST] Advice for filtering surface noise

Thank you for the answers.

I would like to do both.
Listening to the 78s and transfer them to DAT.

Cleaning records and different sizes of styli are not the problems for me.
I have twenty-three styli (both conical and elliptical) and a Nitty Gritty
model 2.5 Fi MKII.

I will try to play the records in stereo.

I wouldn't like to use any computer.
"Computers were never designed with music in mind." Roger Beardsley

Have somebody experiences with the Packburn reducer

Yours sincerely,
Otto Striebel

-----Ursprüngliche Nachricht-----
Von: Association for Recorded Sound Discussion List
[mailto:ARSCLIST@xxxxxxx]Im Auftrag von Rod Stephens
Gesendet: Dienstag, 28. September 2004 02:26
An: ARSCLIST@xxxxxxxxxxxx
Betreff: Re: [ARSCLIST] Advice for filtering surface noise

Hello Otto,

I suppose the first question I have is: What is the end product of your
playback of the records?  In other words, are you just listening to the
78's in real time, or do want to copy them and clean them up to final
digital or magnetic analogue copies?

If it's in real time, the clean up tools are different than if you are
digitizing to a computerized program.

Rod Stephens
Family Theater Productions



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