Amphenol 621-685 coax?
 

Does anyone recall the basic specs for "Amphenol No. 621-685" coax cable?

There are no other markings on the cable than that. It looks like RG-59
in size. Apparently Amphenol no longer make it and a Google search turned
up nothing.

Thanks for any info.

.... Martin VE3OAT

Amphenol 621-685 coax?
 

If you do not find the specs, you can simply measure the diameter of the
inner conductor and the diameter of the shield. Then you can calculate the
impedance using the ARRL Antenna Handbook.

Easy to do.

73, Colin K7FM

Amphenol 621-685 coax?
 

In article ,
Martin Potter wrote:

Does anyone recall the basic specs for "Amphenol No. 621-685" coax cable?

There are no other markings on the cable than that. It looks like RG-59
in size. Apparently Amphenol no longer make it and a Google search turned
up nothing.

Are you sure it's a coax cable? Strip it and see if you don't get lots
of carbon black on your hands in the process. If so, it's a low-tribo noise
cable and not good for RF. Amphenol made a bunch of different kinds.

Amphenol has not made any cables for at least twenty years, though, so
this is not recent production.
--scott


--
"C'est un Nagra. C'est suisse, et tres, tres precis."

Amphenol 621-685 coax?
 

Martin Potter ) writes:
Does anyone recall the basic specs for "Amphenol No. 621-685" coax cable?



Thanks to Scott and Colin for your suggestions. It is indeed coax cable
as I cut off one connector, somewhat crimping the inards in the process.
It sure does look like RG-59 with solid dielectric and solid copper
center conductor, although I don't have any of that to compare directly.
Will have to unsquash it and make some accurate measurements.

Thanks again, fellas.

.... Martin VE3OAT

Amphenol 621-685 coax?
 

Martin Potter ) writes:
Does anyone recall the basic specs for "Amphenol No. 621-685" coax cable?

Thanks to Scott and Colin for your suggestions. It is indeed coax cable
as I cut off one connector, somewhat crimping the inards in the process.
It sure does look like RG-59 with solid dielectric and solid copper
center conductor, although I don't have any of that to compare directly.
Will have to unsquash it and make some accurate measurements.

Strip some. See if you get graphite on your hands. If you do, it's not
RF coax. If you don't, measure it.
--scott

--
"C'est un Nagra. C'est suisse, et tres, tres precis."