GEOfex millennium 2

[tambek]

OK, i'd like to know what is a low-leakage diode i have to use in that circuit...

some examples also maybe...?

plus what is the current limiting resistor... what should the value be like?

im new to this..

btw... what mosfets are similar to bs170?

i need to know, cause my local dealer has bs170 N-FET, no mosfet...

[mattv]

http://www.geofex.com/Article_Folders/Mill2extn/mil2plus.htm

The first illustration shows the part numbers/values.

AFAIK, a BS170 is a BS170. It should be fine.

[Davefx]

That "N-Fet" you speak of I'm sure is just short for N channel mosfet. For the low leakage diode, RG states to use any  plain npn silicon bipolar tranny's collector-base junction.

[brett]

An even simpler and cheaper low-leakage diode is any 1N400X power diode. (where X = 1, 4, 6, whatever)

[brett]

Oh yeah, a common replacement for the BS170 is the 2N7000.  Only the pin arrangement is different, so it "faces" the opposite way to a BS170.