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Hi, Corey,
Do you have the details on "The Prague Compromise." Jay McKnight and I
know it happened, but what changed? The public EQ specs didn't. It
seemed like a bit of a wink wink nudge nudge type of thing.
Jay and I have written about it two posts on my Blog.
<<http://richardhess.com/notes/2006/05/17/cassette-equalization-the-4-db-ambiguity-at-16-khz/>>
<<http://richardhess.com/notes/2010/10/08/cassette-equalization-redo/>>
Thanks!
Cheers,
Richard
On 2019-07-25 2:21 a.m., Corey Bailey wrote:
> Hi Lou & all,
>
> For those interested in this thread and especially Nakamichi cassette
> players:
>
> Know that Nakamichi cassette machines were manufactured using a
> different interpretation of the IEC record/playback specification until
> the IEC spec issued in 1982. This led to the problem that cassette tapes
> recorded on other brands would sound somewhat dull when played on a Nak.
> The exception being the Nakamichi model 550, a portable machine. In
> 1982, the Nakamichi factory switched to the IEC spec issued in Prague,
> Czechoslovakia and all Naks produced after that date were compatible
> with all other brands. Thus, you should check the dates of manufacture
> for any model of Nakamichi cassette player you plan to use for archival
> transfers.
>
> I'm not bashing Naks here, (I use them too) just stating the facts.
>
> Cheers!
>
> Corey
>
> Corey Bailey Audio Engineering
> www.baileyzone.net
>
> On 7/24/2019 8:32 PM, Lou Judson wrote:
>> For me it is mere curiosity! I’ve been given lots of cassette decks
>> over the years, but actually spent about $400 each for my two Naks,
>> worth every enny since I have this big project… Some Naks have the
>> lifter, some don’t. It’s amazingly simple - just ridges attached to
>> the head that push the spring back as the head penetrates the shell to
>> contact the tape! Not even an extra moving part.
>>
>> Dual capstans is essential when the pad is pushed back, to give
>> accurate tension. I also feel that easily knob-adjustable azimuth is
>> also essential.
>>
>> <L>
>> Lou Judson
>> Intuitive Audio
>> 415-883-2689
>>
>>> On Jul 24, 2019, at 8:18 PM, Corey Bailey <[log in to unmask]>
>>> wrote:
>>>
>>> Tim & Lou:
>>>
>>> Some of the brands that I'm aware of were Sony, JVC & Technics. There
>>> were others, I'm sure, and I don't have model numbers. There were a
>>> number of dual capstan decks (a feature that I consider most
>>> important) that may have incorporated pad lifters. There is no
>>> database that I know of that contains this information. Hi Fi Engine
>>> is good about listing the specs of equipment that it has in its
>>> database. Anyone with more information on this subject should jump in
>>> here and perhaps we can get a database started. What I have noticed
>>> is that any of these 20+ year old machines command prices that are
>>> generally too high for me. I have spent way too much money on decks
>>> that wind up dying and the failed part is now obsolete and not able
>>> to be found.
>>>
>>> Cheers!
>>>
>>> Corey
>>>
>>> Corey Bailey Audio Engineering
>>> www.baileyzone.net
>>>
>>> On 7/24/2019 7:40 PM, Tim Gillett wrote:
>>>> Hi Corey,
>>>>
>>>> You said, " FWIW, Nakamichi
>>>>
>>>> decks weren't the only decks that came with dual capstan transports
>>>> and
>>>>
>>>> pressure pad lifters. Several brands produced audiophile grade
>>>> machines
>>>>
>>>> with dual capstan transports and pressure pad lifters that had specs
>>>> as
>>>>
>>>> good as most Nakamichi's."
>>>>
>>>> I've never come across this. Do you remember which brands these were
>>>> please?
>>>>
>>>> Thanks,
>>>>
>>>> Tim Gillett
>>>>
>>>> ----- Original Message -----
>>>> From:
>>>> "Association for Recorded Sound Discussion List"
>>>> <[log in to unmask]>
>>>>
>>>> To:
>>>> <[log in to unmask]>
>>>> Cc:
>>>>
>>>> Sent:
>>>> Wed, 24 Jul 2019 13:23:43 -0700
>>>> Subject:
>>>> Re: [ARSCLIST] Cassette pressure pads
>>>>
>>>> Hi Martin,
>>>>
>>>> I have saved several cassettes that were assembled with screws for
>>>> those
>>>> occasions when I have to re-shell a cassette tape. Sometimes, I steal
>>>>
>>>> just the pads to return the cassette in question to it's best
>>>> possible
>>>> condition before transferring the audio.
>>>>
>>>> Like Lou, I (usually) resort to Nakamichi decks for transfer for a
>>>> host
>>>> of reasons. Recently, I transferred several cassette tapes and my
>>>> beloved Naks wouldn't completely play about half of them. I had to
>>>> resort to another dual capstan deck for those cassettes. FWIW,
>>>> Nakamichi
>>>> decks weren't the only decks that came with dual capstan transports
>>>> and
>>>> pressure pad lifters. Several brands produced audiophile grade
>>>> machines
>>>> with dual capstan transports and pressure pad lifters that had specs
>>>> as
>>>> good as most Nakamichi's.
>>>>
>>>> Cheers!
>>>>
>>>> Corey
>>>>
>>>> Corey Bailey Audio Engineering
>>>> www.baileyzone.net
>>>>
>>>> On 7/24/2019 9:42 AM, Lou Judson wrote:
>>>> > Martin, I have a few you could have. I use Nakamichi decks for
>>>> playback so the pressure pads are irrelevant. In a project of some
>>>> 1500 cassettes to transfer, the guy I work with saved a bunch of parts
>>>> from broken cassettes for repairs, but the pads are useless to me.
>>>> Usually all I need for repairs are the hubs with leaders…
>>>> >
>>>> > I see only six or seven in the parts box, though. How many do you
>>>> need? Actually, come to think of it, we are not keeping the
>>>> transferred cassettes, so I actually have several hundred discards!
>>>> >
>>>> > Write or call me offlist if this helps. Or get a Nakamichi with pad
>>>> lifters to be better off! :-)
>>>> >
>>>> > <L>
>>>> > Lou Judson
>>>> > Intuitive Audio
>>>> > 415-883-2689
>>>> >
>>>> >> On Jul 24, 2019, at 9:26 AM, Martin Fisher
>>>> <[log in to unmask]> wrote:
>>>> >>
>>>> >> Hey Folks,
>>>> >>
>>>> >> Does anyone out there have a source for cassette pressure pad
>>>> assemblies (I say assemblies because the pads are usually attached to
>>>> a spring) or some alternative method of manufacturing your own. I've
>>>> tried those peel and stick strips available from several sources
>>>> online and they just don't cut it. Much too thick and rather
>>>> cumbersome. Of course I can buy a bunch of C-O shells and mutilate
>>>> them but I hate to waste so much just for the one part I need most.
>>>> >>
>>>> >> Thanks! :-)
>>>> >>
>>>> >> Martin
>>>> >>
>>>>
>>>> -------------------------
>>>> Email sent using Optus Webmail
>
--
Richard L. Hess email: [log in to unmask]
Aurora, Ontario, Canada 647 479 2800
http://www.richardhess.com/tape/contact.htm
Quality tape transfers -- even from hard-to-play tapes.
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