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  • Studer C-37

    After two years of challenging birth labor process, she is finally out and cried out loud - Hold me closer Tiny Dancer!
    Last edited by Ki Choi; 02-12-2016, 01:52 AM.

  • #2
    That looks awesome KI!!! Nice work my friend...

    Comment


    • #3
      I'm blown away! That's a man's tape deck! Did the C37 come in that good a superficial shape or did you have to do a lot of restoration? I assume it came from a studio?
      Myles B. Astor, PhD, Administrator
      Senior Editor, Positive-Feedback.com
      ________________________________________

      -Magico S5 Mk.2 speakers with SPod feet
      -Goldmund Telos 280 stereo amp
      -Goldmund Mimesis 37S Nextgen preamplifier
      -Doshi V3.0 phonostage
      -VPI Vanquish direct-drive turntable
      -VPI 12-inch 3D Fat Boy dual pivot tonearm, VPI 12-inch 3D Fat Boy gimballed and SAT LM-12 arm
      -Lyra Atlas SL Lambda, Fuuga, vdh Colibri Master Signature, MutechHayabusa, MOFI Master Tracker, Sumiko Songbird cartridges
      -Technics RS1506 with Flux Magnetic heads, Doshi V3.0 tape stage (balanced)
      -Assorted cables including Transparent XL Gen. 5, Skogrand, Viero, Kubala-Sosna, Audience Au24SX, Genesis Advanced Technologies and Ensemble Power Cords
      -Accessories including Stillpoint Aperture panels, Cathedral Sound panels, Furutech NCF Nano AC receptacles; Silver Circle Tchaik 6 PLC, Symposium ISIS and SRA Craz racks, Audiodharma Cable Cooker, Symposium Ultra and assorted SRA platforms.

      Comment


      • #4
        It looks like it is in fantastic shape! So how does it sound Ki? The C-37 is pretty much the holy grail of professional tube reel to reel decks isn't it? I guess one can argue about the Ampex MR-70, but I love the tape path of the C-37.
        Micro Seiki SX-8000 table with flywheel, SME 3012R arm, SME 312S arm, Lyra Etna SL and Dynavector XV-1S cartridges, ARC Ref 3 phono stage, Otari MX-55 tape deck, Ampex 350 repros, Roon Nucleus Plus server, PS Audio DSJ DAC, ARC Ref 6 pre, ARC Ref 75 amp, JBL 4345 speakers, and Def Tech Ref subs.

        Comment


        • #5
          Congratulations Ki! Owners of Studer A80s are considered with respect until some one enters the room and says "I own a C37"!
          My opinions rely on listening mainly to acoustical, non amplified music. I do not care about electronic music or listening to rock at stadium levels, but I enjoy Mahler and Shostakovitch.

          Comment


          • #6
            Ki- 1/2- or 1/4-inch headstack or both?

            What tubes does the C37 use?
            Myles B. Astor, PhD, Administrator
            Senior Editor, Positive-Feedback.com
            ________________________________________

            -Magico S5 Mk.2 speakers with SPod feet
            -Goldmund Telos 280 stereo amp
            -Goldmund Mimesis 37S Nextgen preamplifier
            -Doshi V3.0 phonostage
            -VPI Vanquish direct-drive turntable
            -VPI 12-inch 3D Fat Boy dual pivot tonearm, VPI 12-inch 3D Fat Boy gimballed and SAT LM-12 arm
            -Lyra Atlas SL Lambda, Fuuga, vdh Colibri Master Signature, MutechHayabusa, MOFI Master Tracker, Sumiko Songbird cartridges
            -Technics RS1506 with Flux Magnetic heads, Doshi V3.0 tape stage (balanced)
            -Assorted cables including Transparent XL Gen. 5, Skogrand, Viero, Kubala-Sosna, Audience Au24SX, Genesis Advanced Technologies and Ensemble Power Cords
            -Accessories including Stillpoint Aperture panels, Cathedral Sound panels, Furutech NCF Nano AC receptacles; Silver Circle Tchaik 6 PLC, Symposium ISIS and SRA Craz racks, Audiodharma Cable Cooker, Symposium Ultra and assorted SRA platforms.

            Comment


            • #7
              How cute is that play button?

              Comment


              • #8
                Originally posted by jcmusic View Post
                That looks awesome KI!!! Nice work my friend...
                I started the work then handed over to the real professional, Alan Garren of Waltzing Bear Audio in Portland OR. Often he couldn't proceed any further until I can get the parts and major assemblies from Poland or elsewhere in the world. He also had to get some of the parts machined when we couldn't get them.

                Comment


                • #9
                  Originally posted by MylesBAstor View Post
                  I'm blown away! That's a man's tape deck! Did the C37 come in that good a superficial shape or did you have to do a lot of restoration? I assume it came from a studio?

                  The C37 came from David Bernhagen of Coast Recorders. Doc B at the Bottlehead referred him to me. David had it for a long time planning to rebuild but gave up. He wanted the machine to go to someone who would rebuild it instead of flipping it on eBay.... He moved his studio in San Francisco into the same building as Paul Stubblebine Mastering. I'll have to call David and tell him the machine is back to life.

                  Comment


                  • #10
                    Originally posted by mep View Post
                    It looks like it is in fantastic shape! So how does it sound Ki? The C-37 is pretty much the holy grail of professional tube reel to reel decks isn't it? I guess one can argue about the Ampex MR-70, but I love the tape path of the C-37.

                    This machine is amazing piece of engineering masterpiece. Before I picked up, Alan recorded and played back frequency sweep using modern ATR tape and showed me its response on a HP analyzer. C37 responded +3dB down at 14Hz and started close to flat response from 18hz up to 35Khz. Not bad for a ~60 yr old machine.

                    Comment


                    • #11
                      Originally posted by microstrip View Post
                      Congratulations Ki! Owners of Studer A80s are considered with respect until some one enters the room and says "I own a C37"!

                      Thanks! This thing weighs ~200 lbs. Yes, it's a respectable machine.

                      Comment


                      • #12
                        Originally posted by MylesBAstor View Post
                        Ki- 1/2- or 1/4-inch headstack or both?

                        What tubes does the C37 use?

                        It's a 1/4" setup. I do have an extra headblock but it is also a 1/4". It can be converted to a 1/2" setup but I will need to find the headblock, rollers and guides.
                        Audio section uses
                        Repro 3x E188CC (7803) 1x E283CC (12AX7)
                        Record amp 2x E188C
                        Oscillator 3x E188CC

                        Power supply has tubes and silicon rectifiers for the filaments.

                        Comment


                        • #13
                          Here are few more photos of some the parts replaced, rebuilt, and repaired.

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                          • #14
                            Old parts replaced...too many to count...

                            Comment


                            • #15
                              Originally posted by Asamel View Post
                              How cute is that play button?
                              there's no lock out feature for the record button. So if one hits Play and Record button with valuable tape threaded, you record over them.

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