Low temp wire solder connectors
Moderators: pompeiisneaks, Colossal
Low temp wire solder connectors
yah or nay on these?
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Re: Low temp wire solder connectors
OK for lower voltage (and likely lower current) connections. I wouldn't trust the insulation at typical tube amp voltages.
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Re: Low temp wire solder connectors
^^^^ i have had shrink wrapped HT connections short to chassis and don't see these as being any different
PRR wrote: Plotting loadlines is only for the truly desperate, or terminally bored.
Re: Low temp wire solder connectors
This is an interesting statement. I've often wondered if this might happen and a particular concern is whether sharp ends of multi-strand wire might pierce the heatshink. Or, is it because heatshrink is too thin to act as an adequate insulator? So, what is recommended? Install a terminal strip so that we can land the connections there with solder? Add layers of heatshrink? Something else?thetragichero wrote: ↑Fri Jan 20, 2023 5:36 am i have had shrink wrapped HT connections short to chassis and don't see these as being any different
Re: Low temp wire solder connectors
When I have to connect two HV wires (e.g., recycling a PT), I solder them together, carefully trim off anything pointy, and then double shrink wrap the connection.
Re: Low temp wire solder connectors
Same situation, did the same. Used "double wall" (whatever that is) two layers. Thetragichero got me to wondering...
Random website search...
https://www.diverseelectronics.com/uplo ... -Guide.pdf
"What’s the maximum voltage at which I can use Panduit heat shrink?
Unless noted otherwise, all the products have a 600V AC rating. They are “low voltage” products. Per NEMA, Low Voltage is
600V or less; Medium Voltage is 2,400 to 69,000 V; and High Voltage is 115k to 230kV."
I guess it depends on the heatshrink you use.
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Re: Low temp wire solder connectors
for that particular amp i ended up using double heatshrink and it worked fine, but moving forward i always have a physical connection (like a terminal strip) if i need to do such a thing. really only been an issue with salvaged transformers but also i guess a layout issue (probably didn't help that it was bulk heatshrink purchased from ebay across the world...)
PRR wrote: Plotting loadlines is only for the truly desperate, or terminally bored.
Re: Low temp wire solder connectors
Thanks for the input. Yes prefer the double wall approach, as this low temp solder seems iffy. I do know techs in the camera world using this stuff a lot but not at the hi volts amps are operating at.
Cheers A
Cheers A
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Re: Low temp wire solder connectors
when i was doing work for a security camera guy they used all sorts of connections i would never have within 50ft of an amp (he also once told me to check if a mains connection was off by shorting with a screwdriver... i reached for my multimeter...). i do remember half of the troubleshooting was just changing out the connectors and seeing if that made the cameras work... not something i'd want to go wrong in the middle of a set
PRR wrote: Plotting loadlines is only for the truly desperate, or terminally bored.