Solderless gainlone amplifier? (crimps, wires and terminal blocks) - diyAudio
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Old 27th July 2006, 09:06 PM   #1
ash_dac is offline ash_dac  United Kingdom
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Thumbs up Solderless gainlone amplifier? (crimps, wires and terminal blocks)

Hi,

I was thinking of using crimp style connectors with wires, and terminal blocks to build a gainclone LM3875 amplifier. It would be a "fast build" .

What are the potential limitations ? contact resistance ?
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Old 27th July 2006, 10:05 PM   #2
preiter is offline preiter  United States
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Well, you sort of need to solder the components to the PCB.

if you are talking about connections between the PCBs, toroid, jacks, etc. That will work fine. I did it in my gainclone to make it easy to remove/replace parts, reconfigure the wiring, etc.
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Old 27th July 2006, 11:39 PM   #3
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Quote:
Originally posted by preiter
Well, you sort of need to solder the components to the PCB.

if you are talking about connections between the PCBs, toroid, jacks, etc. That will work fine. I did it in my gainclone to make it easy to remove/replace parts, reconfigure the wiring, etc.
well, he may not be willing to use a PCB.
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Old 27th July 2006, 11:43 PM   #4
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its hard to figure out what he means, it almost sounds like he wants to split the pins on the lm3875 and use connector blocks for the resistors etc

which i would not advise lol
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Old 27th July 2006, 11:45 PM   #5
lgreen is offline lgreen  United States
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Default do it!

Other than reliability and immunity to vibration I don't see why it wouldn't work, though it would be difficult to crimp to the chip pins. I say try it out, it would be fascinating to see a solder-free amp.
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Old 28th July 2006, 02:41 PM   #6
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Check out this. it tells you how to make a el cheapo wire wrapping tool for almost free. wire wrapping is supposed to be better vibration resistant than solder.

http://www.toozy.com/wraphack/wraphack.html
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Old 28th July 2006, 02:53 PM   #7
ash_dac is offline ash_dac  United Kingdom
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Quote:
Originally posted by neutron7
Check out this. it tells you how to make a el cheapo wire wrapping tool for almost free. wire wrapping is supposed to be better vibration resistant than solder.

http://www.toozy.com/wraphack/wraphack.html
Useful if your Apollo Guidance Computer ( http://en.wikipedia.org/wiki/Wire_wrap ) shuts down

Thanks for the link.
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