I recently finished making the umbilical cable for my phono stage and used these. The construction quality is excellent and it has top notch cable isolation, stress protection and locking. I found it fiddly to construct with and you need to allow yourself plenty of time for pausing and problem solving - whatever you do don't rush it. The solder buckets are quite close together and clumsy amateurs like me will struggle 🙂 Once soldered though, a neat rubber grommet with individual holes for the cables slides over the solder buckets and ensures complete isolation.
Not cheap, but high quality in my opinion. How many times are you going to build an offboard power supply ? My opinion is to do it right.
62LC-16F12-10SN(771) | Amphenol 62LC Series, 10 Pole Cable Mount Connector Plug, 12 Shell Size, Female Contacts, Bayonet Mating | Amphenol
Not cheap, but high quality in my opinion. How many times are you going to build an offboard power supply ? My opinion is to do it right.
62LC-16F12-10SN(771) | Amphenol 62LC Series, 10 Pole Cable Mount Connector Plug, 12 Shell Size, Female Contacts, Bayonet Mating | Amphenol
That does look good. Similar to the amphenol but more room for soldering. I don't think they did that when I bought mine but I'd have gone for it.
Nice Looking plug, I assume they have a chassis mount mate. Seems like Amphenol has quite a few options.
thanks for the information.
Heavy Duty, Never have replace this plug.. I did think about looking for an aircraft boneyard, to salvage some connectors. But they generally are painted with a zinc anti-corrosive, not so nice looking. Also if I remember correctly the aircraft connectors require a expensive crimp tool to re-pin them.
Thanks for the information.
Thanks, good to know. So probably no good for the OP's 300B application. I'll resign them to low voltage dc use if at all.
Thanks Chris, I was just coming in to do a pin count. I am filling out my order to Mouser so I'll go ahead and order the amphenol connectors.
Regards,
Hello - Do you know if these connectors are "pre-earth first-mate last-break contacts", they are the nicest looking connectors I've looked at.
Rick
Bulgin --- available at all the usual suspects.
Ham radio gear of the 1960's used 8 pin octal male and female connectors -- without accident for transceivers which ran over 600 V on the B+ and -150 C-. Elsewise you have your choice of surplus Amphenol and Belden stuff.
Ham radio gear of the 1960's used 8 pin octal male and female connectors -- without accident for transceivers which ran over 600 V on the B+ and -150 C-. Elsewise you have your choice of surplus Amphenol and Belden stuff.
Hi Jack,
Ah - yes. But in those days you were allowed to lose a few hobbyists a year to accidents like that!
They had metal covers so you could use them as a plug, or a socket. They did work very well. One important note to pay attention to, the live contacts were always the female end!
-Chris
Ah - yes. But in those days you were allowed to lose a few hobbyists a year to accidents like that!
They had metal covers so you could use them as a plug, or a socket. They did work very well. One important note to pay attention to, the live contacts were always the female end!
-Chris
I had a 16kv neon transformer jump out and bite me on the arm many years ago. It was a week and a half before I got the feeling back in my arm. That transformer had a metal case and arched from the case to my arm, about 3 inches. It's like keeping a black mamba as a pet.
Metal shelled XLR mate the shell first, then pin1 mates and pins 2&3 mate last.
But not for situations where the wrong connector could be plugged in.
Hi Rick,
Since you should never be mating live equipment, the common, or ground connection shouldn't matter. You can cause damage by plugging in a cable like this charged or live. So you are always going to have a discharge (bleeder) resistor on any HT line. That's to make your stuff safe to plug in after some period of time.
I'm bringing this up simply because it's easy to forget to plug in a power supply, and the tendency is to connect it as soon as you remember it isn't. You have to give the supply a chance to discharge before doing this.
-Chris
Since you should never be mating live equipment, the common, or ground connection shouldn't matter. You can cause damage by plugging in a cable like this charged or live. So you are always going to have a discharge (bleeder) resistor on any HT line. That's to make your stuff safe to plug in after some period of time.
I'm bringing this up simply because it's easy to forget to plug in a power supply, and the tendency is to connect it as soon as you remember it isn't. You have to give the supply a chance to discharge before doing this.
-Chris
Hi Chris - No it's likely that I will connect the power cable to the mono-blocks and assuming it all works I'll leave it connected until something breaks. The filaments have a slow start circuit and the B+ wont engage until the filaments are heated. Thanks for the advices.
Regards,
Rick
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