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Class D Switching Power Amplifiers and Power D/A conversion

jst to trs
jst to trs
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Old 18th May 2020, 08:40 AM   #1
blaconator is offline blaconator
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Cool jst to trs

So you know that jst input on the board right by the volume knob?

TPA3116D2 2x50W Class D Stereo Amplifier Board with Volume Control

is there any way to connect a 1/4 female jack to that?
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Old 18th May 2020, 08:55 PM   #2
grahamgraham is offline grahamgraham  United Kingdom
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With a soldering iron.
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Old 19th May 2020, 05:30 AM   #3
blaconator is offline blaconator
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the jst wire has three wires, but the 1/4 jack has two "places" to solder to

which one do i give two wires to?
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Old 19th May 2020, 06:49 AM   #4
Yatsushiro is offline Yatsushiro  France
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The 1/4 female jack you have sounds like a mono version. Assuming you want a stereo feed into the amp. you'll need a stereo 3 ring female jack Switchcraft : 1/4" 3 Conductor, Plastic Handle Plug.

Unless you have two separate mono feeds?

Last edited by Yatsushiro; 19th May 2020 at 06:51 AM.
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Old 19th May 2020, 08:45 AM   #5
russc is offline russc  England
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1/4" is huge - what is your source?
3.5mm is a much more popular choice for home use.
1/4" for stage use.

Tell us your intended use.
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Old 19th May 2020, 08:37 PM   #6
grahamgraham is offline grahamgraham  United Kingdom
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You just need to either:

- De solder JST and solder in to the through holes a twin core shielded cable and a TRS of your choice to the other end

- butcher a jst cable and solder a TRS on


Yes, it sounds like a TS that you have.

Can you solder? I'm sure there will be someone who can make one for you but it will be the price of a soldering iron and parts. Its a good skill to have.

Last edited by grahamgraham; 19th May 2020 at 08:43 PM.
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