[78-L] Presto cutter/ meets riaa curve

[GENE JOSLIN]

--- On Sun, 5/17/09, don ward <dward7 at earthlink.net> wrote:

> From: don ward <dward7 at earthlink.net>
> Subject: Re: [78-L] Presto cutter/ meets riaa curve
> To: "78-L Mail List" <78-l at klickitat.78online.com>
> Date: Sunday, May 17, 2009, 12:52 AM
> I had a console model with D1 cutting
> head and i reworked the spring suspension and it would 
> meet RIAA  specs up to 12 k with recording amp eqed and
> then  start to roll off ... 
> You could get  lead screws for the lathe 
> at  85, 95, 110, 120 lpi. I had  85 and 110 for
> mine.
> When blank discs  hit  close to $15 each and
> cutting stylus were $35 i sold it. 
> dnw 
> 
> 
> -----Original Message-----
> >From: "Steven C. Barr" <stevenc at interlinks.net>
> >Sent: May 16, 2009 11:49 PM
> >To: 78-L Mail List <78-l at klickitat.78online.com>
> >Subject: Re: [78-L] Presto cutter
> >
> >> I don't think that Presto ever made a lacquer
> cutter that did not
> >> operate at both 33 and 78.  The 6 series was
> on the market until the
> >> very end in the mid-50s.  They eventually
> marketed an adapter to allow
> >> for cutting at 45 and another adapter for
> microgroove threading.
> >> 
> >Wonder how the *55*rpm records (both Lennick & I
> have examples)
> >were cut?!  ("why" NEITHER of us know...?!)
> >
> >...stevenc
> >_Presto produced a portable recorder around 1940 that was 78 only, cutting up to 12-inch disks.  This model utilized a condensor microphone, which derived a low dc potential from the amplifier.  Unfortunately the input connector was the same as for the crystal microphone of the era. and when a crystal mike was used, the small dc charge fried it over a period of time.

Gene Joslin


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