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linear audio flutters (only in new recordings)
Hello and thank you both. It seems Daniel is right: The problem is the
friction clutch I just "fixed". I think I'll have to replace it completely. I wasn't even using LP (we don't have SLP in PAL-land, since our SP is already a good bit slower than NTSC-land SP, so our LP is your SLP. Our Standard tape length is 240 minutes in SP, and up to 300 min. is available). The fact that the flutter was audible only in new recordings was probably since that meant adding the recording flutter to the playback flutter, which pushed it over the edge of noticability. However after recording a whole tape for testing it got much worse, now the HiFi audio started crackling, too, and there is even a bit of picture distortion now and then. So I'll order a replacement for the clutch, and while I'm at it, also for the back-tensioning mechanism with the felt band, since it is also worn and cigarette-smoke-drenched from the former owner. The capstan seems OK and luckily this model of VCR uses a toothed belt, which also seems fine. (Sorry for the unusual quoting style, missing "" and missing "References:" line, somehow Google refuses to retrieve the message for replying, and I don't have access to a true news server, so I had to copy it in by hand.) -- Linards Ticmanis ----- sofie ) wrote... Linards: Try some brand new tapes.... maybe try a different brand. Also if you are recording at the SLP/EP 6hr speed, try changing it to the SP 2hr speed. The slower speed at best is problematic with resultant lower quality audio and video and is more susceptible to tape irregularities. Since audio flutter with the linear head is directly related to capstan speed there are a number of things to look at in addition to the quality of the tapes you are using..... Belt (worn or stretched) Idler clutch (grabbing) Back-tension (band/mechanism sticking) Bad capstan motor (cogging) ***and.... of course.... the MOST LIKELY SUSPECT is the mechanism that you just replaced the felts in..... if they are grabbing or have too much tension you can get uneven capstan speed with resultant linear audio flutter. Based on your most recent service on this mechanism I would say that you need to re-check your work..... the problem is probably there. |
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