![](https://s3images.coroflot.com/user_files/individual_files/613050_9pea5l8graks24wx92ng4t7rp.jpg)
For a basic multiples module, I used a led pencil to carefully mark the places where I will drill holes.
![](https://s3images.coroflot.com/user_files/individual_files/613050_bpuzbr7iiqnjcak83wxr2wxak.jpg)
This is a mini jack to 1/4" jack multiples. Here I have also marked with a led pencil, the places where I will drill.
![](https://s3images.coroflot.com/user_files/individual_files/613050_i9t20sj3nt43fyqd3jjcxnjnl.jpg)
Be careful to make sure the holes you drill will fit whatever jacks you intend to insert.
![](https://s3images.coroflot.com/user_files/individual_files/613050_pzxolzvxq7uipv_ecg7pmnnjd.jpg)
Here we can see how the connectors are soldered together, not mixed. (An optional non-inverting, unity gain amplifier can be incorporated to prevent loading.)
![](https://s3images.coroflot.com/user_files/individual_files/613050_kqjcix7jttjagixprsjjuhn3x.jpg)
I have been using paint markers to decorate the modules.
![](https://s3images.coroflot.com/user_files/individual_files/613050_7bsuxxhuyp5st2ttnenkpjb6i.jpg)
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