Re: Card Edge Connectors on a 7704
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All you probably need is replacements for the plastic bits that clip onto the sides of the sockets. Without those the contacts won't make contact - at least not consistently.
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AFAIK they are only obtainable from another 7000 series mainframe (unless someone has made replacements using 3-D printing - which I suspect may not be possible). Be warned those plastic bits need to be fitted the right way round. D. -----Original Message-----
From: [email protected] <[email protected]> On Behalf Of Jeff Dutky Sent: 01 April 2022 09:05 To: [email protected] Subject: [TekScopes] Card Edge Connectors on a 7704 I just received a 7704 and several of the card edge connectors on the main interface board have their left and right (or A and B?) covers falling off. They are not completely disintegrated yet, though it looks like a previous owner tried to glue them back together, with limited success. Other than the deteriorating covers on the card edge connectors the scope appears to be working. I can get readout on the two bays whose connectors are intact, though I have not managed to get stable traces, and the CRT seems bright and crisp. Some of the controls are stiff or frozen, but the scope is also quite dirty so some stiff controls are to be expected. The contacts on the card edge connectors look like they are still in good condition, but I am wary of trying to insert any plug-ins for fear of damaging the contacts. The housings for the contacts do not appear to have been damaged or to have disintegrated yet, so I am wondering what my options are. Do I absolutely need to have covers in place? Will I damage the connectors if I try to insert a plug-in with the plastic covers missing? I know that replacing the connectors is a big job, but I happen to have a parts scope that I may be able to harvest connectors from. Is this reasonably doable? Has anyone tried to 3D print the cover plates? ¡ª Jeff Dutky |
David C. Partridge