[sdiy] Re: [efm] 2N4853s

[tomg@efm]

The problem has been solved All 2N4853s are not equal.
I popped one in a real VCO and guess what... That's right
It would not scale. So I did a some quick stuff.... and now 
they do...;-)

Here's something to go by......
http://people.atl.mediaone.net/efm3/vco1e.gif

This adds a dual opamp and a few more components
so the small-kit would be $4.00.. But we can still do
it and yes I'll toss a few more 100K resistors in there
for CV summing...even though I didn't draw any..;-)

The really good news is that I've got 50 2N2647s
that will work in the new circuit...so there are now
more available.....

Tom

>oops! hold on......there's a problem.....more later..



> I got 'em...well I got 50 anyway...These are real
> 4853s but there are problems. They are used. I have
> tested 10-20 and they all work so far...They were
> cut off short...like 3/16" leads in some cases. If set
> firmly against the board there is enough to solder to.
> 
> I may have more soon but right now there are only 50
> for sale....Please limit orders to 10 pieces. So everybody 
> gets a chance.   
> 
> They are useable and only a $1.00ea...Guaranteed no 
> DOAs. First come etc......
> 
> I'll do small kits (1)A798 (1)4853 and (1)J112 for $3.00 
> 6 resistors 1 cap and a trimmer. You supply the pref-board, 
> pots and terminals I supply the small parts, schematic and 
> drawing...Complete VCOs under $5.00! Unreal....
> 
> Shipping in the USA is $1.00 up to 10pcs or 5 small kits.
> $6.00 everywhere else.
> 
> Kim's out again, so I'm all there is for a few more days....
> efmorders at hotmail.com
> 
> Tom
> 
> 
> 
> 
> 
> 
> 
> 
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