Are there any ready-made options for umbilicals? I know the DIY market is small but seems like something that would have some customers if not stratospherically priced...
Not really, unless you are looking to replace something in an organ. Most DIYer will be using connectors of their choice and not many builder make a 2 chassis amp with a separate power supply.Are there any ready-made options for umbilicals? I know the DIY market is small but seems like something that would have some customers if not stratospherically priced...
True but wouldn't something like two heater runs, a B+, B- and ground cover a good percentage of amps? Something like an 8-wire bundle with octal connectors would cover a lot of situations, for those of us without frequent access to hamfests...Seems they would be pretty much custom, and priced accordingly... They are easy to make,,, I use octal type, usually to connect pre amp projects to PS... Sockets and plugs are easy to find for next to nothing at Hamfests, in my experience... I use a suitable size cable insulation, and fill it with conductors to match the circuits...
This one feeds a pair of mono pre amps...
I guess I don't see how to solder them with no access to the soldering surface, hold the iron to the outside of the pin and try to get the wire and some solder inside it? Or melt some solder into the pin and then keep it heated from the outside while inserting the wire? That's why I asked.That's the Male plug for the octal sockets... Pins are hollow, conductors slide in and get soldered, the housing is required to cover them, and provides strain relief.... Look at the pics in post 3...
Great, seems like that's the ticket then. Thanks!Basically yes. Insert the wire through the end, hold the iron on the pin near the end and flow solder in along the bit of wire sticking out. Trim the end with cutters so it looks neat and clean. They're surprisingly easy to do, though they kind of suck to de-solder. Usually involves heating and flicking the socket to get the solder to come out enough to get the wire extracted.
It is easiest to use solid core wire, not stranded. IF you use stranded wire, you need to pre tin the wire with solder to keep the strands together. Sometimes this makes the diameter of the wire too large to fit thru the hole on the bottom of the socket pin. Also a big tip soldering iron works best so that you can heat up the pin well and not make a cold solder joint.I guess I don't see how to solder them with no access to the soldering surface, hold the iron to the outside of the pin and try to get the wire and some solder inside it? Or melt some solder into the pin and then keep it heated from the outside while inserting the wire? That's why I asked.
This is what we were required to do in military work. No exposed voltage.And sockets should be used for power supply end, amps can have plugs with exposed pins (since there's no power there when unplugged). There are octal plugs with a chassis flange for the amp's power input.
Sure, I like Palustris's approach with fixed cable on one end. With something like that one from Angela I'd fix the cable and connector to the amp side with an octal socket on the power supply side.This is what we were required to do in military work. No exposed voltage.
Is there a cover though?Does anyone have experience with these? I can't really see how to make the wire connections. They also sell them with a housing similar to other octal plugs I've seen.
http://www.angela.com/eightpinamphenolstyleblackphenolicoctalpinplug.aspx