[sdiy] 2N3102, 2N3415

[harry]

Woah dude....

You are going to be real dissapointed in a 25:1 control voltage
range... Most synth VCO are 1000:1 range.

H^) harry

med wrote:

> the schematic is being hosted at
> http://www.sinclairinternetwork.com/schematic.jpg temporarily...
> there are resistor values scrawled across the side -- i was listing
> what i needed to buy; disregard them.
> it's a photocopy from a book (called 'electronic circuits manual', i
> think) from the late 70's that i found in the local library; thus, i'm
> not sure as to its legality.
>
> ----- Original Message -----
> From: "patchell" <patchell at silcom.com>
> To: "med" <teenagewasteland at prodigy.net>
> Cc: <synth-diy at node12b53.a2000.nl>
> Sent: Saturday, April 07, 2001 10:38 PM
> Subject: Re: [sdiy] 2N3102, 2N3415
>
> >     According to my reference, a 2n3102 is a 110 AMP, 900 volt SCR
> or TRIAC.
> > Man, that is gona be some VCO....
> >
> >     The 2n3415 is a pretty much normal NPN, for that you can use
> just a plain
> > old 2n3904.
> >
> >     If the schematic is posted somewhere, I am sure there are plenty
> of people
> > here who can suggest a replacement for the one strange one.  Either
> my reference
> > is wrong, or one of the numbers in that part number is wrong.
> >
> > med wrote:
> >
> > > Okay, i have a schematic for a vco that calls for
> > > -10 of 2N3102
> > > -1 of 2N3415
> > > transistors. the ten supposedly make an astable multivibrator(i
> think); the
> > > 2N3415 acts as an amplifier (i believe).
> > > However:
> > > -no shops in the area have heard of either
> > > -internet searches turn up nothing for them
> > > so: where can i get them, or, failing that, what are the specs,
> and suitable
> > > replacements?
> >
> > --
> >  -Jim
> > ------------------------------------------------
> > * Visit:http://www.silcom.com/~patchell/
> > *-----------------------------------------------
> > *I'm sure glad Merry Christmas comes just once a year
> > * -Yogi Yorgensen
> > ------------------------------------------------
> >
> >