Barry
10-02-2022, 20:18
Cable clearout
I am having a bit of a cable clearout, so the following cable pairs are available for £2 each (to cover postage).
Apart from the Klotz AC110 and Gotham GAC-1 pairs, I made all the cables; some of which were assembled to try out an idea. All of the cables are un-balanced and are terminated with gold-plated RCA phono plugs. I should add the cables are not all of the same length, though each of the cables in a pair are equal in length.
The cables are as follows:
Cable A
Klotz AC110 coaxial cable, 45cm long (plug to plug). The plugs are marked 'Puresonic Connector' and are colour coded. Capacitance (including the plugs): 36pF.
https://i.postimg.cc/BvLFWQF8/006.jpg
https://i.postimg.cc/8c5D3sF9/005.jpg
Cable B
Gotham GAC-1 coaxial cable, 100cm long (plug to plug). The plugs are made by Amphenol and are colour coded. Capacitance (including the plugs): 120pF.
https://i.postimg.cc/vmsyy0gW/007.jpg
Cable C
Belden 8129 coaxial cable (foam dielectric RG58A/U), 102cm long (plug to plug). The plugs are Neutrik ‘REAN’, and are colour coded. Capacitance (including the plugs): 103pF.
https://i.postimg.cc/FzJC7Qw1/008.jpg
Cable D
Trompeter tri-axial cable type TRC 75-2. The centre coaxial section has a characteristic impedance of 75Ohm. Both the two screens are connected together at each end. The plugs are from Maplin and are colour coded. The cables are 66.5cm long (plug to plug). Capacitance (including the plugs): 50pF.
https://i.postimg.cc/76CrMdpr/003.jpg
Cable E
Boston Acoustics (Surrey) coaxial cable. Essentially a type RG58C/U cable, clad with a very tough silicone outer sheath. This cable is used to connect underwater hydrophones to recording equipment. Since the hydrophones are capacitance microphones, the cable has a pressure resistant cladding so the capacitance of the cable is not affected. Cable length: 96.5cm (plug to plug). Plugs are not identified, but offer a true coaxial termination. Capacitance (including the plugs): 102pF.
https://i.postimg.cc/8kHmmcmD/010.jpg
Cable F
300 Ohm antenna feeder ribbon cable. This is a simple 2-wire transmission line without any shielding. I was sceptical of their use, expecting pick up of unwanted noise, mains hum and RFI. The use of ribbon feeder cable as an audio interconnect was very popular in the 1990s, so I thought I would try out the idea. To my surprise I found that there was no unwanted pick up of interference. A side effect and advantage of the lack of an external screen is that the ribbon feeder has a low capacitance per unit length.
Cable length, plug to plug: 72.5cm. The plugs are from Maplin, and are colour-coded. Capacitance (including plugs): 31pF
https://i.postimg.cc/TPVD2NkG/004.jpg
PM me if you are interested in any of the cables.
Thank you
Barry
I am having a bit of a cable clearout, so the following cable pairs are available for £2 each (to cover postage).
Apart from the Klotz AC110 and Gotham GAC-1 pairs, I made all the cables; some of which were assembled to try out an idea. All of the cables are un-balanced and are terminated with gold-plated RCA phono plugs. I should add the cables are not all of the same length, though each of the cables in a pair are equal in length.
The cables are as follows:
Cable A
Klotz AC110 coaxial cable, 45cm long (plug to plug). The plugs are marked 'Puresonic Connector' and are colour coded. Capacitance (including the plugs): 36pF.
https://i.postimg.cc/BvLFWQF8/006.jpg
https://i.postimg.cc/8c5D3sF9/005.jpg
Cable B
Gotham GAC-1 coaxial cable, 100cm long (plug to plug). The plugs are made by Amphenol and are colour coded. Capacitance (including the plugs): 120pF.
https://i.postimg.cc/vmsyy0gW/007.jpg
Cable C
Belden 8129 coaxial cable (foam dielectric RG58A/U), 102cm long (plug to plug). The plugs are Neutrik ‘REAN’, and are colour coded. Capacitance (including the plugs): 103pF.
https://i.postimg.cc/FzJC7Qw1/008.jpg
Cable D
Trompeter tri-axial cable type TRC 75-2. The centre coaxial section has a characteristic impedance of 75Ohm. Both the two screens are connected together at each end. The plugs are from Maplin and are colour coded. The cables are 66.5cm long (plug to plug). Capacitance (including the plugs): 50pF.
https://i.postimg.cc/76CrMdpr/003.jpg
Cable E
Boston Acoustics (Surrey) coaxial cable. Essentially a type RG58C/U cable, clad with a very tough silicone outer sheath. This cable is used to connect underwater hydrophones to recording equipment. Since the hydrophones are capacitance microphones, the cable has a pressure resistant cladding so the capacitance of the cable is not affected. Cable length: 96.5cm (plug to plug). Plugs are not identified, but offer a true coaxial termination. Capacitance (including the plugs): 102pF.
https://i.postimg.cc/8kHmmcmD/010.jpg
Cable F
300 Ohm antenna feeder ribbon cable. This is a simple 2-wire transmission line without any shielding. I was sceptical of their use, expecting pick up of unwanted noise, mains hum and RFI. The use of ribbon feeder cable as an audio interconnect was very popular in the 1990s, so I thought I would try out the idea. To my surprise I found that there was no unwanted pick up of interference. A side effect and advantage of the lack of an external screen is that the ribbon feeder has a low capacitance per unit length.
Cable length, plug to plug: 72.5cm. The plugs are from Maplin, and are colour-coded. Capacitance (including plugs): 31pF
https://i.postimg.cc/TPVD2NkG/004.jpg
PM me if you are interested in any of the cables.
Thank you
Barry