## 2024.7.18
* Refer to [here](https://hackmd.io/@pd-driver-ntuhep/HytbouV3p)
* Last test for 16 ch [test](https://hackmd.io/@pd-driver-ntuhep/SkaHD7wA6)
* and [here](https://hackmd.io/@pd-driver-ntuhep/Hy2y4t-1C)
* 
* 
* Similar to my 1st test with **bread board*** (a long time ago)
* Bias Correct
* Next
* 16 ch. board with 10 pcs and SMT
* Complete layout changed...
* BOM
## 2024.7.25
* ADD Capacitor (3pF)
* 
* 
## New board: beam-test-3
* Original: 4 sub-board + 1 main board
* Sub
* 16ch amp
* 1 ADC
* 1 ADC has 16 analog channels
* Main
* 1 pi
* 4 digital buffer from ADC to PI
* New: 64 *amplet* board + 1 main board
* Sub(Amplet)
* **1 ch amp**
* Main
* **64 channels analog input (USB-A)**
* **4 ADC**
* 1 pi
* 4 digital buffer from ADC to PI
## Chassis
* 
* 