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I forgot to add: At WB, we could convert anything, recorded anywhere in real time (with hardware) or in software, after it was recorded. CB Corey Bailey Audio Engineering www.baileyzone.net ------ Original Message ------ From: "David Crosthwait" <[log in to unmask]> To: [log in to unmask] Sent: 11/19/2021 2:34:23 PM Subject: Re: [ARSCLIST] 220V/50Hz 1/4" Open Reel Audio Playback Decks >Dave, > >Have you given thought as to where you are going to get 50hz. power from? Here for line-lock 50hz. videotape machines, we have a 50hz. power source running at 220 volts. This is the only way to properly power certain machines that do not have a DC servo capstan and video drum (the capstan/drum is directly driven by the frequency of the AC mains). > >Best Regards, > >David Crosthwait >DC Video >Transferring NTSC, PAL & SECAM Two Inch Quad and Helical Source Tapes (and More)! > >[log in to unmask] <mailto:[log in to unmask]> >www.dcvideo.com <http://www.dcvideo.com/> > >Follow DC Video on Facebook: https://www.facebook.com/dcvideo <https://www.facebook.com/dcvideo> >Follow DC Video on YouTube: http://www.youtube.com/user/dcvideoonline <http://www.youtube.com/user/dcvideoonline> > > > >>>> The Smithsonian Center for Folklife and Cultural Heritage has an upcoming >>>> archival audio preservation project in the country Georgia (Sakartvelo) and >>>> is seeking recommendations for 1/4" open reel tape machines natively >>>> operable on 220V/50Hz AC. In addition, we are seeking sources for a >>>> refurbished machine suitable for preservation work meeting the following >>>> specifications: >>>> * Capable of handling fragile acetate-backed 1/4" open reel audio tape >>>> * Has a minimum of three playback speeds: 3.75 ips, 7.5 ips, 15 ips >>>> (38.1 cm/s, 19.05 cm/s, 9.525 cm/s) >>>> * Has quarter-track stereo and half-track stereo (NAB or DIN) heads >>>> * Operates on 220V/50Hz power without the use of step-up transformers; >>>> switchable is okay >>>> * Capable of handling reel sizes up to 10.5" (NAB or AEG DIN) >>>> * Optional: switchable NAB/CCIR (IEC) EQ >>>> If you have any information, questions, or potential sources for >>>> professional machines meeting these requirements, feel free to direct >>>> responses to me off-list at [log in to unmask] Thank you for your time! >>>> Regards, >>>> Dave >>>> ------------- >>>> Dave Walker >>>> Audiovisual Archivist​ >>>> Smithsonian Institution >>>> Center for Folklife and Cultural Heritage >>>> Ralph Rinzler Folklife Archives and Collections >>>> office: (202) 633-0663 >> >> >> Links: >> ------ >> [1] https://www.jrfmagnetics.com