AMZ Mosfet Boost/another question

[Mike Nichting]

Is there a direct substitute for the 2N5485 and the BS170??
One is for the Millenium bypass and the other for the Boost itself.

Thanks
Mike N

[Aharon]

For the BS170 I used a 2N7000 (now I don't remember if the pinouts are the same so if you use it check) and for the millenium I think I've used 2N5484 and got away with it.
Aharon

[bwanasonic]

Smallbear has BS170s. Never bothered with the millenium, just payed a few extra bucks for 3PDTs. Have fun with the MosFet Boost. I just had the chance to check out mine with an Epiphone Casino and a Fender Twin. Very nice!

Kerry M

[petemoore]

I used a J201 in one of mine, just brought the collector to ~4.5v and it works great !
 Not that I'm recommending you solder one in there, but for testing, or just a different sound if a socket is used.
 There are probably quite a few Q#'s you could use in that position [with varying results, I'm using 2n7000.
 Mosfet will be the cleanest.

[Mike Nichting]

Good~!! I have some 2N7000's.
The Millenuim is part of the circuit for tonepad. I guess I can leave it out?? I don't know if it will effect the circuit at all but I will try it.

So the 5485 is for the Millenuim?? If so then I won't worry about it.

Is the 2N7000 better than the BS170??

[bwanasonic]

Good~!! I have some 2N7000's.
The Millenuim is part of the circuit for tonepad. I guess I can leave it out?? I don't know if it will effect the circuit at all but I will try it.

So the 5485 is for the Millenuim?? If so then I won't worry about it.

Is the 2N7000 better than the BS170??

Personally I would leave out the millenium and use a 3PDT. The $3 difference between a DPDT and 3PDT is just not worth the aggravation to me. I am suprised tonepad included it as part of the circuit aimed at beginners, as it just seems to complicate things. Maybe the perf layout I used will be of some use to you:

http://home.earthlink.net/~bwanacentral/html/mosfetboost_layout.html

Socket the transistor and try different ones, but the original design calls for the BS170. This is also the same transistor used in the ZVEX Super Hard On.

Kerry M

[petemoore]

Ive read these are very static sensative and can be damaged simply by handling them...advised not to touch the leads if possible...

[bwanasonic]

The BS170 I got from smallbear came in a regular plastic bag and survived it's implantation into my pedal, which probably involved a fair amount of handling. I got 1/2 a dozen just in case though.

Kerry M