So a similar question was posted about two years ago due to a vacuum tube amp build found on from this link.
http://diyaudioprojects.com/Solid/12AU7-IRF510-LM317-Headamp/.
I am about to build this headphone amplifier. The IRF510 mosfet used in this build has clipping issues at higher volumes. I checked the support thread to see if there is any updates over any component changes since the first write up. Reading the comments on page 137-138, someone posted they used a Hitachi N Mosfet part of the 2SK213, 2SK214, 2SK215, 2SK216 instead of the IRF510 due to a Vgs of 2 V and solved the issue of the clipping and now can go to 100% volume.
Link to 2SK213
Obviously the part isn't made by Hitachi anymore and found on ebay. Searching for a replacement on Mouser similar to the 2SK213, I have a STM STP5N52K3 with a Vgs of 3 V. Close enough but seem like it will do.
A few comparisons:
IRF510: Vds breakdown voltage: 100 V, Vgs, breakdown: 20 V, Rds On: 540 mOhms
STM STP5: Vds breakdown voltage: 525 V , Vgs, breakdown voltage: 30 V , Rds On: 1.5 Ohms
2SK213: Vds breakdown voltage: 140 V, Vgs breakdown voltage: 15 V, Rds On: not stated.
One thing to note is the internal schematic of the mosfet from Hitachi and STM nearly similar are the similar. I would like to know what the two arrow with the squiggly lines mean. The main question is how feasible is using the STM STP5N52K3? The goal is to have a low Vgs, but the 510 V Vds seems a little to high for me to know as a total beginner in Mosfet selection.
http://diyaudioprojects.com/Solid/12AU7-IRF510-LM317-Headamp/.
I am about to build this headphone amplifier. The IRF510 mosfet used in this build has clipping issues at higher volumes. I checked the support thread to see if there is any updates over any component changes since the first write up. Reading the comments on page 137-138, someone posted they used a Hitachi N Mosfet part of the 2SK213, 2SK214, 2SK215, 2SK216 instead of the IRF510 due to a Vgs of 2 V and solved the issue of the clipping and now can go to 100% volume.
Link to 2SK213
Obviously the part isn't made by Hitachi anymore and found on ebay. Searching for a replacement on Mouser similar to the 2SK213, I have a STM STP5N52K3 with a Vgs of 3 V. Close enough but seem like it will do.
A few comparisons:
IRF510: Vds breakdown voltage: 100 V, Vgs, breakdown: 20 V, Rds On: 540 mOhms
STM STP5: Vds breakdown voltage: 525 V , Vgs, breakdown voltage: 30 V , Rds On: 1.5 Ohms
2SK213: Vds breakdown voltage: 140 V, Vgs breakdown voltage: 15 V, Rds On: not stated.
One thing to note is the internal schematic of the mosfet from Hitachi and STM nearly similar are the similar. I would like to know what the two arrow with the squiggly lines mean. The main question is how feasible is using the STM STP5N52K3? The goal is to have a low Vgs, but the 510 V Vds seems a little to high for me to know as a total beginner in Mosfet selection.