Golborne Vintage Radio

Full Version: National NV-5120A Single reel cartridge recorder. An Update.
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Hi all.
Not great news. It seems that I am not having a good run with parts and service data lately. I've sunk a couple of hours into getting the machine operating, and it does try. Having not worked on one of these in the past, I have no good idea as to what is supposed to happen. U tube videos only reveal so much.


I think that one of my tape cartridges has video tape fitted from a VHS or Beta cassette, which has the tape oxide on the outside of the tape where as this machine needs the oxide layer on the inside of the tape. I also need belts, and eight volt illumination/sensor lamps. I have hunted world-wide for a Service Manual or a Training Manual. Panasonic used to produce wonderful training manuals.


Rewinding video tape from a VHS cassette reel onto a National cassette reel is not something I am willing to do unless I can get the machine to play. At this time I can get it to lace and unlace but nothing else. I do see what might be a tape end sensor but I am not sure. So little information on this format.


I guess that it could become a static display, or a boat anchor. Perhaps not a boat anchor. I did have to get it shipped 3,000 km to get it here when I bought it.


I'll try a little longer before I give up on it, and have a look at a couple of U-matic machines I own. I have a few Service Manuals for U-matic machines, and anything is better than nothing.


Wish me luck.
I remember repairing one of these (a National cartridge) in late 1970s. I think they are more like an EIAJ 1/2" reel to reel than an U-matic (which I also serviced). Already obsolete.

Stiff leader to enable loading. Of course we had the printed manuals back then.