I know who rebuilt those rollers. I had him rebuild a rubber roller that had turned to goo for an old projector I repaired it ran true and I had no issues. It was a stepped roller that had 2 different sized outer diameters for the forward and reverse speeds a bit more complex than a pinch roller. Hopefully the customer brings this to his attention and it gets sorted out.
I think we all know who rebuilt the rollers by now, and given his experience and reputation I'd be shocked to see he'd made such a mess of one roller, but the fact they're both out makes me wonder if the owner hadn't just installed them incorrectly? He rebuilt a roller for me and it's perfect, the pitch on my r2r is rock solid.
Do you know where I could get calibration/test tapes? I have a CT-F900 that I need to totally re-calibrate. Not just speed which I think is ok, but azimuth, and left right level balance of both the VU meter, and the recording levels. Output was adjustable on these so only thing I need to do is channel balance. Any ideas?
Thanks a lot for this amazing video really helped, I recently brought one of this sony tapes but I’m having some issues is there any ways I can get in touch with you and maybe get some Idea of could be? Thanks!
Waawaawaawaawaawaawaawaa....wow. Sounds excellent, except for the wah-wahs. When I saw the spinning head assembly it scared me. It seems that alignment would be too difficult to maintain with all that swinging around. Not to mention that some day I'm betting the connecting wires are gonna break. Other than that I wish my RT-909 would record both directions. :)
Paul Mills I have an akai gx260. They did it correct. Single center capstan with single pinch roller. 6 dedicated glass heads. 3 for each direction. That is the way to do it. Auto reverse record and play. Some decks would play both directions but only record I one. I am also not a big fan of the dual capstan dual pinch roller. As the rollers wear it is going to cause a tension problem. If the roller pulling has more wear it may not pull tape as fast as roller pushing and that would reduce tension on heads. Center capstan or one for each direction is a more reliable. The akai single center drive is the simplest and most reliable of them all.
The owner should send those rollers back for a re-do (and hopefully a concentric shave). That is why I dread getting rollers rebuilt. The guy who used to do them for me seems to have disappeared (he was pretty old) and there are now several unknowns offering the service. I do have a good guy for rebuilding projector rollers but he doesn't do tape recorder stuff.
Ray Rooney I am sure the owner will contact him regarding this. He is one of the online rubber roller repair guys but I am not naming him. Yes I do know who it is as the client told me and I was kind of shocked to see them wobbling like that.
I bet I know who it is and would be shocked to get a bad one too. He's been at it a long time. I haven't needed a tape roller rebuild in several years so I haven't had occasion to try things of late.
Smashing, it's a hell of a lot better than it was :-D. i think it's worth the owner getting better rollers, a good quality machine. is it possible that the slight wear in the pinch bar bushing could make it worse also?.
I have a NEC U-Matic VCR that needs the pinchroller re-made and a couple of belts (two out of three) replaced... I did a temporary fix on the pinch roller using rubber hose but of course its not perfect, the wow&flutter is quite evident.. Any suggestions on where to find? Nothing available parts wise here in Australia for a rare 70's vintage machine unfortunately... :(
The meter scaling is different on the machines, sony use their own scale and akai use philips scale, which explains the 3db difference walkman-archive.com/articles/guide-excellent-recordings_05.html
Guessing this was a slip-up that got past a Quality Control step, as lumpy rollers would otherwise put them out of business. Ok, hoping it was just a slip-up.
