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| 50Ohm water cooled coaxial cable and connectors? |
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| Plasmateur:
Hello, I've found several different high powered water cooled coaxial cables through searching online, however I'm having a bit of difficulty locating any kind of connector for them - (think SMA,BNC,N-Type bulkhead connections but for the watercooled coaxial cable). Does such a bulkhead connection even exist? |
| jbb:
I guess so, but have no idea where to find it. Maybe you could ask one of the cable manufacturers who they use? |
| jmelson:
--- Quote from: Plasmateur on October 11, 2019, 05:20:43 pm ---Hello, I've found several different high powered water cooled coaxial cables through searching online, however I'm having a bit of difficulty locating any king of connector for them - (think SMA,BNC,N-Type bulkhead connections but for the watercooled coaxial cable). Does such a bulkhead connection even exist? --- End quote --- If the cable needs WATER COOLING (!!) then you are dealing with power levels WAY in excess of any standard coax connector. There are some really big connectors used in broadcast transmitters that are several inches in diameter, and have springy contact fingers. These are roughly the same diameter as the "cable" which is actually rigid coax made out of silver-plated pipe, but have a flange for bolting, and usually an O-ring so they can be pressurized to keep out moisture. Jon |
| vk6zgo:
--- Quote from: jmelson on October 11, 2019, 07:16:29 pm --- --- Quote from: Plasmateur on October 11, 2019, 05:20:43 pm ---Hello, I've found several different high powered water cooled coaxial cables through searching online, however I'm having a bit of difficulty locating any king of connector for them - (think SMA,BNC,N-Type bulkhead connections but for the watercooled coaxial cable). Does such a bulkhead connection even exist? --- End quote --- If the cable needs WATER COOLING (!!) then you are dealing with power levels WAY in excess of any standard coax connector. There are some really big connectors used in broadcast transmitters that are several inches in diameter, and have springy contact fingers. These are roughly the same diameter as the "cable" which is actually rigid coax made out of silver-plated pipe, but have a flange for bolting, and usually an O-ring so they can be pressurized to keep out moisture. Jon --- End quote --- I've never seen rigid coax made of "silver plated pipe"-------- the "three & one eighth inch" cable common in TV Broadcasting has, for the really "rigid" stuff used inside the building, an aluminium (or sometimes bare copper) outside pipe, & a bare copper inner. The outside stuff may be constructed the same way, but more commonly these days, has a corrugated copper outer conductor. The connectors are very large, indeed. I have never heard of "water cooled " coaxial cable--------- if your cable is getting that hot you are doing something wrong! |
| calmtron:
Never seen a bulkhead connector for thoose, seems like they usually are bolted directly to a bus bar (for RF heating applications). |
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