Today my spreadsheet told me that I have to update the First Watt
website, and so I did.
Two articles you may or may not have seen, also the DIY Biamp 6-24 and
First Watt F8
FIRST WATT
website, and so I did.
Two articles you may or may not have seen, also the DIY Biamp 6-24 and
First Watt F8
FIRST WATT
a good time on the bench source
No degen on the F8 SS output - nice! I’m still trying to understand where the tab for that lunch is being paid.
So all the J2 builder can now stop and change plans.
You are a evil man.
🙂
Many thanks for the articles,
Patrick
You are a evil man.
🙂
Many thanks for the articles,
Patrick
Just think of all the money I'm saving with only one Toshiba Jfet on input
instead of six.
Hahahaha
That means I save money too.
Thank you for thinking of us cheap bastards.
Why is this one named F8 instead of J3? Is there any rhyme or reason behind it? Isn't it closer to the J2 than the F7?
It's not all Jfets.
Papa cheaped out and used an irfp device on the current source.
F8 sounds cool, and 8 is a lucky number to quite a few cultures.
F3 is nothing like F4 etc etc.
Papa cheaped out and used an irfp device on the current source.
F8 sounds cool, and 8 is a lucky number to quite a few cultures.
F3 is nothing like F4 etc etc.
The challenge is not to copy, but to improve upon.
For example, (at least) DC coupled at the output.
Patrick
For example, (at least) DC coupled at the output.
Patrick
DC Coupled
> The challenge is not to copy, but to improve upon.
> For example, (at least) DC coupled at the output.
Quick attempt. Seems to work.
By no means optimised.
THD 0.016% 1W into 8R.
No coupling caps input and output.
Output stage identical to previously published at the J2 thread.
Disclaimer :
I don't have a F8. I have not seen one.
I have no idea of the original component values.
I don't have a schematics.
This is pure speculation in Spice.
I have not built, only simulated.
Have fun simulating further,
Patrick
.
> The challenge is not to copy, but to improve upon.
> For example, (at least) DC coupled at the output.
Quick attempt. Seems to work.
By no means optimised.
THD 0.016% 1W into 8R.
No coupling caps input and output.
Output stage identical to previously published at the J2 thread.
Disclaimer :
I don't have a F8. I have not seen one.
I have no idea of the original component values.
I don't have a schematics.
This is pure speculation in Spice.
I have not built, only simulated.
Have fun simulating further,
Patrick
.