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Thread: New to me Rainbow 100A and VR201

  1. #11
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    The heat gun method is fairly safe as long as you don't go nuts with it. Heat it slowly and gently.

  2. #12
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    The thing is whatever solvents you use it isn't going to be much. Still you'd have to stick it somewhere, even outdoors in a bag. But depending on what it is sticking it in a bag may cause it to attack the plastic, so be leary of that. Maybe outdoors under a board, or inside a box with a bag around that, just not tied shut.

  3. #13
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    Brilliant, some great advice here. Thanks. I will be collecting the rainbow week after next. I'll update on my progress then.

  4. #14
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  5. #15
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    Collected the Rainbow today during a business trip, it has several original 5 1/4 floppies and manuals. Haven't had time to go through the stuff. It'll all be in boot of my car until the weekend. Also included is a new Microline 82a with a box of faded paper, this has all been in storage from new since 1983. Not sure I'll have a use for that though. I'll list the software floppies hopefully at the weekend.

  6. #16
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    The disks, if proprietary, likely represent stuff that's readily available. But if not, first things first, make images with Imagedisk. Even if they were stored in favorable conditions, the data is still prone to deterioration. Some disks give up the ghost as they're displaying the contents of their directory. It's happened to me.

  7. #17
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    Quote Originally Posted by tipc View Post
    The disks, if proprietary, likely represent stuff that's readily available.
    The format of the RX50 is far from a proprietary mystery, thankfully. http://home.iae.nl/users/pb0aia/vax/rx50.html
    = Excellent space heater

  8. #18
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    I was referring to the content, not the format. I should think, of all computers, most s/w is stored somewhere on the net.

  9. #19
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    I checked over the PSU and powered the Rainbow up with nothing connected to PSU, fan runs ok and voltages appear ok, reconnected internal cables and powered up, Rainbow goes through selftest but I see an error under the "cateract" something that ends with keyboard and the LED's on the back confirm this. If I press setup, I can just make out the setup screen under the cataract. If I hold down each key I get the continuous clicking I would expect. I do have one query. If I hold down enter on numeric pad I get continuous clicking but not If I hold down return on main keypad. I can't see the screen clearly to read the error so time to try and perorm a cataract operation.

    I have disassembled the VR201 and there was a red sticky liquid around some parts of the case, I don't see any leaking caps, but when I wiped all the CRT clean it would appear that the red liquid may be from around the anode cap. Now time to try and remove the glass from the CRT, seems to be very well stuck down with what looks like a couple of mm of "glue" between the two.

  10. #20

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    I was able to successfully treat cataracts using the simple method of carefully and slowly removing the safety glass with a flex knife. The heat gun may help, but it isn't required. Out of curiosity, why did only some terminals and monitors use safety glass? Where do you even purchase safety glass these days?
    "Deep down I'm pretty superficial." - Ava Gardner

    My Computer Museum Website: http://tanrunomad.com/

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