question of use

I am curious, those 50 ohm terminators that Radio Shack sells/sold - for terminating a computer under installation or repair - are they "really" of any value? Does "anyone" use them?

I have probably close to half a dozen or more of them - new and I have no use for them. Although, I've not looked at them up close as yet and am wondering - if they "might" be usable at least for a low power dummy load for a Ham Radio H.T. IF so, I "might" keep one or two....... So I guess I'm asking too, what if any uses other than the intended use - has anyone ever used these?

Thanks

Reply to
clfe
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50 ohm terminators for ??computers?? No way, unless there is a coax ethernet adaptor card.
Reply to
Robert Baer

I'll look again, but I'd swear thats what the package said........... It is a small BNC with a sealed cap on it. RS sells/sold them.

Reply to
clfe

You have never seen a network built that way? You use a tee connector at every network card and a 50 ohm terminator at each end of the network. There is no hub involved, and conflicts are handled by multiple retries. It predates Cat 3 and Cat 5, but some networks still use RG58 Thin Net.

As far as the terminators go, they can be used with test equipment, but are only certified to 10 MHz for network use. Some are a lot better than that, but some are real crap. It depends on the design and who put them together. They are usually built with a 1/4 W resistor for network use.

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Reply to
Michael A. Terrell

These were commonly used on Co-ax networks. You hardly see them used since the introduction of Ethernet. If memory serves placing the cap on the bnc connector on the computer directly is a way to tell the computer that its not physically attatched to the network.. which would speed up operation of the computer as it wont constantly be trying to see whats out there on the network. Then again, it can also serve as a dust cap.

Mark

Reply to
Mark Fortune

I have used lots of them for ethernet over 50 ohm coax termination

Reply to
Sjouke Burry

I'm not into that and as I said in a prior post, came across a handful - just trying to figure out alternate uses if any.

Reply to
clfe

Yes, a BNC with a sealed cap could be either a 50 ohm terminator or a

75 ohm terminator. But. Not used on PCs except for coax ethernet cards.
Reply to
Robert Baer
[...]

Actually, it's a terminator for the computer that sits at the end of the Arcnet network cable.

Reply to
JW

Arcnet isn't 50 ohms.

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Reply to
Michael A. Terrell

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