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.
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?
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.
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!
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.
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... :(
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?.
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 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.
More sophistication = more to go wrong.
Enjoying your videos Mr 12VoltVids!
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.
Nice job
i really need to get myself a reel to reel recorder. i just love the things.
scaleop4
Heh heh I have too many. At last count 6 plus the old grundig and dictation machine
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?
Well Terrys is a great place to get pinch rollers done.
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.
was hoping you would show how to connect the scope when doing these adjustments
This is just meter calibration, no scope needed.
Hello. I have a tape recorder akai gx 230d and I think it was headed alignement. how can I make you send him for a full service?
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!
i could hear it at 4:54. can you not hear it or you think youtube woudln't be able to do it?
5:24 - I'm guessing there may be too much take-up or back-tension.
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.
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... :(
Model number? It's probably made by Sony.
There are companies that will rebuild your pinch roller, however none that I can recommend, as I have no experience personally dealing with any.
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?.
No, you can see what is causing the issue from the way the mechanism is moving. Those pinch rollers are really bad.
@@theotherchannel2279 i did say that ( i think it's worth the owner getting better rollers.).
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 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
Good job! But you're right, once you hear the wow and flutter you can't unhear it.
My ears are bleeding.
There was a reason I adopted DAT for audio recording.
Hi, what you used to fix the screws on the head block, it's something green. Thanks
It's called 3 bond.
@@12voltvids , can you tell me the excatly name of the product, there are a lot of threebond
@@quantros08 sorry the can was labaked in Japanese. No longer have it.
He should have just ordered the 5 sided pinch rollers instead.
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.
Well the owner was doing their own head replacement.
Did (s)he later go a different route for rollers, or did the unnamed company (guessing who it is) do a second pass on the rollers?
@@matambale she contacted him and he redid the rollers.
Must be them there chinese pinch rollers.
You can physically see the actual mechanism moving due to those pinch rollers being so bad!!!
I do have to ask. Why did you calibrate this machine when the previous person who serviced it did such a bad job of it?
a nasty wow,flutter
Bad pinch rollers. They are rebuilt. Go figure.
That thing sounds like ass damn rollers.
I hope you will take 1-2 minutes to reply to my email. The stuff is free.
Rudy Rutenber
My email is on my home page.