I am building my amp into a new chassis. ( long story)..
And I am seperating the power supply from the gain stage. What is a good connector system and cable to use? I will have a 400V B+ wire and a 190V wire that goes to the driver. Can I run these in a 2 conductor cable without the cross talk degrading the signal? recommendations? connectors and wire/cable type opinions welcome. I also would prefer to not choose a connector that requires me to buy a $200 crimp tool.
I also assume I want ONE large and well connected ground between the 2 chassis. I have 2 regulator boards for the 300B heaters. I am going to put those in the portion with the tubes so any noise picked up will hopefully be cleaned up by the regulator. I also have a pair of AC heater wires but am going to put them in their own cable separate from the rest.
All together I will have:
1) 400VDC x 2 ( 1 per channel)
2) 190VDC x 2 ( 1 per channel)
3) 6.9VDC and Return x 2
4) 6.3 VAC x 2
5) Ground
Any advice is welcome.
Jeff
And I am seperating the power supply from the gain stage. What is a good connector system and cable to use? I will have a 400V B+ wire and a 190V wire that goes to the driver. Can I run these in a 2 conductor cable without the cross talk degrading the signal? recommendations? connectors and wire/cable type opinions welcome. I also would prefer to not choose a connector that requires me to buy a $200 crimp tool.
I also assume I want ONE large and well connected ground between the 2 chassis. I have 2 regulator boards for the 300B heaters. I am going to put those in the portion with the tubes so any noise picked up will hopefully be cleaned up by the regulator. I also have a pair of AC heater wires but am going to put them in their own cable separate from the rest.
All together I will have:
1) 400VDC x 2 ( 1 per channel)
2) 190VDC x 2 ( 1 per channel)
3) 6.9VDC and Return x 2
4) 6.3 VAC x 2
5) Ground
Any advice is welcome.
Jeff
Jeff:
I've built three different two-chassis preamplifiers and made umbilical cords for all of them. My Aikido and Aleph P 1.7 use Amphenol connectors. Mil-spec, very expensive and well-made. One nice thing about the Amphenols is you can have one of each gender connector on the enclosures and on the umbilical; in other words, you can mount a female connector on the power supply chassis, which minimizes the exposed shock hazard on the rear of the power supply and the end of the umbilical where it connects to the amp. I used well-made but far less expensive aviation grade Y2M connectors sourced from China for my BA2018 -- see 1set Y2M Military Aviation Connector, Green Color XLR Connector, 2 16 Pins available, Power Connecting/Signal Transmission|Connectors| - AliExpress. But your umbilical might need heavier gauge wires than I needed, so you might consider the larger YP28 series instead: YP28 Aviation Plug and Socket Military Circular Connector Y2M YP28 47810 12 14 19 24 32 37TK Pins|Connectors| - AliExpress I couldn't find female panel connectors for the Chinese connectors, but it wasn't a problem for the low voltages needed for a BA2018; in your case, that may be problematic.
Whatever you decide, good luck with your project.
Regards,
Scott
I've built three different two-chassis preamplifiers and made umbilical cords for all of them. My Aikido and Aleph P 1.7 use Amphenol connectors. Mil-spec, very expensive and well-made. One nice thing about the Amphenols is you can have one of each gender connector on the enclosures and on the umbilical; in other words, you can mount a female connector on the power supply chassis, which minimizes the exposed shock hazard on the rear of the power supply and the end of the umbilical where it connects to the amp. I used well-made but far less expensive aviation grade Y2M connectors sourced from China for my BA2018 -- see 1set Y2M Military Aviation Connector, Green Color XLR Connector, 2 16 Pins available, Power Connecting/Signal Transmission|Connectors| - AliExpress. But your umbilical might need heavier gauge wires than I needed, so you might consider the larger YP28 series instead: YP28 Aviation Plug and Socket Military Circular Connector Y2M YP28 47810 12 14 19 24 32 37TK Pins|Connectors| - AliExpress I couldn't find female panel connectors for the Chinese connectors, but it wasn't a problem for the low voltages needed for a BA2018; in your case, that may be problematic.
Whatever you decide, good luck with your project.
Regards,
Scott
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