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FAB2000 Input ModulesAll FABModules related to the Input Section. These will include XLR Female jacks, TRS jacks, Input Transformers, Balanced Line Receivers, Mic Input Modules, Returns, DI (High-Z) inputs, etc. |
Here’s a photo of how the FAB2010 XLR Input Module and FAB2110 Input Transformer Module connect to each other.
I added a 2-pin header on the FAB2010 XLR Input Module. Later, I’ll show you how to connect those pins to your switches to control -20dB Pad and switching of Phantom Power. I’ll also show you how to connect these pins to a Microprocessor, like an Arduino (AVR) and show it’s logic level capabilities.
Populated our FAB2110 Input Transformer Module with parts. Here are some photos showing a Jensen JT-11K8-APC Input Transformer mounted on it.
The board looks good, but I’d probably add another mounting hole on the lower right corner, just because the board is a little unstable with a heavy transformer mounted on it.
I’ll build another prototype using a different Input Transformer, like an Altran or EA brand.
Populated the FAB2010 boards tonight. I put too much solder paste on my resistors so I need to be careful doing that. It’s a little hard because I’m just using a plunger to dispense the paste. I need to get one of those solder paste pump dispenser. I’ve seen them on eBay for around $150 or so.
Anyway, here are some pictures.
Received our FAB2110 Input Transformer Module. Looks good. No corrections needed, it’s just a very simple PCB. You can use a Jensen, Cinemag, Altran, EA Input Transformer for this PCB.
So let’s say you have a few of these FAB 2110 boards, you can solder a different kind of Input Transformer on each FAB board, and you’ll be able to swap them in and out in your circuit, and compare the sound flavors of each other.
I’m working on my FAB2010 XLR Input Module and getting ready to populate it. So far, I’ve noticed already a problem with the XLR jack…. it’s off by a few millimeters positioned on the board.
That’s the problem… I trusted the Eagle library for the XLR jack to be 100% correct. It’s not.