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Connector for B+
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Old 13th August 2019, 09:32 PM   #1
WntrMute2 is offline WntrMute2  United States
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Default Connector for B+

I am planning out my build of a phono-stage using D3a and 5687 tubes. The PT will be a Hammond 363CX with 360V output. I'm planning on a two chassis design but am having trouble finding connectors that will handle the voltage.
Power-Cons are good for 250V and 20A.
Chinch Jones connectors are similarly rated although they make a 900V connector but I don't believe there is a cable mounted connector, just panel mounts.

Below is what I'd like but these connectors are 250V rated.
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File Type: pdf SR schematic 12-13-18.pdf (46.7 KB, 6 views)
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Old 13th August 2019, 11:28 PM   #2
indianajo is online now indianajo  United States
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TE connectivity (formerly AMP) Mate-N-Lock is rated 600 v. Not the "commercial" line, those are rated to 250 v. The pins are crimp but I make them with about 5 movements of a slip-joint pliers. The official crimp tool is over $130.
Big stock at newark, possibly others. Rack and panel, cable whatever, no back housings however.
These were used in Hammond organs, like the H100 and the L100. Crimps last decades.
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Old 14th August 2019, 03:32 AM   #3
PRR is offline PRR  United States
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360V CT, 180V each side, peaks at 252V of DC. Less with a bottled rectifier. I would not fear a 2V over-spec on a 250V part.

This is a PHONO preamp? Maybe 80mA max (maybe less)? The 250mA-288mA transformer seems a bit much. I can see why you want to mount such a large lump remote from mag pickup and preamp.
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Old 16th August 2019, 05:42 PM   #4
kodabmx is offline kodabmx  Canada
Affordable triode connected sweep tube amps.
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Connector for B+
I use these up to 420VDC... GX16 2-10 Pin Male & Female Circular Connector Aviation Socket Plug Equipment | eBay
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Old 17th August 2019, 02:38 AM   #5
davidsrsb is offline davidsrsb  Malaysia
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What makes you sure that an aviation connector is suitable, aircraft tend to operate at low voltages?
I have never seen good datasheets for these connectors.
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Old 17th August 2019, 07:48 AM   #6
kodabmx is offline kodabmx  Canada
Affordable triode connected sweep tube amps.
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Connector for B+
The fact I've run 400V through it for years? They are rated for 250VAC, but they work fine at 400VDC at the currents used in a tube amp <1A...

Here's a crappy datasheet: https://www.google.ca/url?sa=t&rct=j...xEBrZyVc-1Eqi7
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