Hello forum, this is my first go at Diptrace/PCB design. I'd appreciate a sanity check
My objective is to use a pile of low gain (30-50 hfe) Russian PNP germanium transistors I picked up
The EQD Dream Crusher circuit is designed around low gain NPNs, so I started there and added a voltage inverting charge pump, JFET input buffer and AMZ pickup sim. There may be some mistakes in my schematic
For the PCB itself I've tried to keep the board somewhat symmetrical at the expense of some trace lengths
I made an effort to group the different parts of the circuit together as well as the component types. The power filtering and charge pump are at the top, the biasing resistors are down the right hand side, the input stages are at the bottom. There may be a better way to lay the components out
Russian transistor pinout is back-to-front so I made a new component for them in the component editor. This is something I may have screwed up
For the JFET I've allowed for either SMD pads and through holes. I feel like the routing here is messy and I am 90% confident with my pinout
I was also confused about the best way to route the three way junctions at R5/7 and C5
I made ground planes on of both sides of the PCB. There aren't any specific ground traces and the planes are not separated by circuit function. Power traces are 0.6mm and signal is 0.33
I've enjoyed doing this so far. It reminds of the game Freeways
My objective is to use a pile of low gain (30-50 hfe) Russian PNP germanium transistors I picked up
The EQD Dream Crusher circuit is designed around low gain NPNs, so I started there and added a voltage inverting charge pump, JFET input buffer and AMZ pickup sim. There may be some mistakes in my schematic
For the PCB itself I've tried to keep the board somewhat symmetrical at the expense of some trace lengths
I made an effort to group the different parts of the circuit together as well as the component types. The power filtering and charge pump are at the top, the biasing resistors are down the right hand side, the input stages are at the bottom. There may be a better way to lay the components out
Russian transistor pinout is back-to-front so I made a new component for them in the component editor. This is something I may have screwed up
For the JFET I've allowed for either SMD pads and through holes. I feel like the routing here is messy and I am 90% confident with my pinout
I was also confused about the best way to route the three way junctions at R5/7 and C5
I made ground planes on of both sides of the PCB. There aren't any specific ground traces and the planes are not separated by circuit function. Power traces are 0.6mm and signal is 0.33
I've enjoyed doing this so far. It reminds of the game Freeways
