I need a suitable replacement(BF245A)

[Dazza]

I started this capacitance meter project sometime ago, and I gave up as I wasn't sure off a suitable replacement .

(BF245A)

Any help will be greatly appreciated.

View attachment 35096

 

[Dazza]

This is the whole project in PDF.

020161uk_3.pdf

 

[Dazza]

I found a cross-reference page that was last updated back in 96, and listed these two as a cross-reference.
(2N5457) (MPF102) both are available to me locally, well Dick Smith has a listing for them in their catalogue, which usually means there is a chance that they will have them.

Does anyone have any idea, if either of these may work.

Thank you .

 

[ante1]

Dazza,

The circuit around T1 is just for checking the battery. You don

 

[Dazza]

Hi Ante,
you know I didn't even look at the schematics when I decided to finish this project, if I did I would have realised :. I had most of the components and the etched PCB in a plastic bag, awaiting till I learn more of electronics to finish it. I just when ahead putting it together using the component overlay. I didn't even consider that I could solve the problem myself now, I sure can be thick sometimes ;D;D.

 

[ante1]

Hi Dazza,

Well, I know the feeling I