experimental board

2013/7/13

many times， you will want a small board to hold your temporary RF board for testing, ie, A BNC connector in the panel,  A power supply pole for easy use with alligator clip. a good RF ground to incinerated modules together.

here is the version 1, a DIY PCB version board.  in my imagination, this should be 20cmX20cm and have a 5.5cm panel. a Air capacitor,  input/output BNC connector, good quality  POT.

till now, there are so many minor circuit built and tested, but few of them are available to reuse.  No Box for them is the major problem, so the tiny PCB  block is broken or just don't know what is it and how to use them. Imagine what if all the modules keep ready for Experimental or Design a new device? 

1)  Well defined interface 

2)  DC supply through BNC/SMA/other easy way

3)  A box for them, ugly or brilliant 

4)  Interface description On the Box

5)  Schematic/block diagram/performance Mark to Box 

It's a  155mm x 100mm  PCB board, 

1) each strip hole length 23mm, width 3mm  ( my mini mill one turn 2.5mm, 23mm means from position hole mill 4 Turn for each direction)

2) 5 strip hole align together to form a  mount strip hole line    to achieve this the mill operation should :

a) drill the positioning hole  (2.5mm per rotation)   first hole rotate the mill 7 turn from edge.  every 12 Turn drill per hole

 b)  mill every positioning hole : each hole mill each side 4T

3) strip line distance:

 from font  edge   5mm,  25mm, 35mm   (2T, 8T, 4T)

 from each edge, 5mm, 15mm,  35mm   (2T, 4T, 8T)                     

Aluminium box