Building the Largest 555 Timer in the World out of Vacuum Tubes
![](https://i.ytimg.com/vi/WrBPVVKvWfE/mqdefault.jpg)
19:50
In-depth Look at the HP AC-4G Decade Counter
![](https://i.ytimg.com/vi/Qp4l-RWHbes/mqdefault.jpg)
19:54
Building the Largest 741 OpAmp in the World with Vacuum Tubes (Plus 555 Timer Update)
![](https://i.ytimg.com/vi/wPTZL9fxxJE/mqdefault.jpg)
16:24
Trying to Reverse Engineer a Vacuum Tube Integrated Module
![](https://i.ytimg.com/vi/ABWU7FlM1T0/mqdefault.jpg)
42:18
Using the 555 Timer
![](https://i.ytimg.com/vi/TYRkkA0vDNI/mqdefault.jpg)
53:33
HUGE VACUUM TUBE COLLECTION
![](https://i.ytimg.com/vi/hLEYaV_Nl2Q/mqdefault.jpg)
21:37
Building a DIY Triode Vacuum Tube
![](https://i.ytimg.com/vi/S0j4xOuRzD4/mqdefault.jpg)
10:50
The End of the Full Bridge Rectifier? (Sorry ElectroBOOM) Active Rectifier is here!
![](https://i.ytimg.com/vi/8l4Av_VltgM/mqdefault.jpg)
23:34