All my ASM-1 questions at once!

[Kurt Dwight Bleach]

So, I'm plugging away at my ASM-1 and have, fortunately, found the
answers to almost all of my questions in the archives. However, there's
a couple of things I can't figure out, so I thought I'd compile them all
into one e-mail, so as not to flood the list with a bunch of stupid
newbie questions. Any input would be greatly appreciated!

1) In regards to the NPN pairs in the exponential converter, do 2N3904’s
work okay or is it much better to go with the MAT-02’s? If the 2N3904’s
are okay (I have a bunch lying around) how do they go into the board? I
ordered some LM394’s from Digikey, but stupidly got the 8-dip package.
What’s the correct package? TO-5? (Anybody need a couple 8-dip LM394's?)

2) I’m using 2N4391 JFET’s. In trying to figure out their orientation on
the board, I went through the archive and found what looks to me to be
conflicting information. Can anybody help me out with this?
First I saw this: “The 2N4391 to 2N4393 does not have the right leg
pinout, you will have to bend the middle leg to end up on the other side
or put the transistor on the soldering side.”
But then I noticed: “Primitive ASCII pin diagram for 2N4391/2N4392 JFET:

TO-18 Metal Can Package
                   D
                  ---
                 /     \
            S |   o   | G
               | o   o |
tab  --->  /\     /
                  \/ ---
**** Bottom view - pins pointed towards your eyeballs ****
S = source, D = drain, G = gate
In the ASM-1 VCO:  Source = goes towards CA3140 (-) input, Drain  = goes
towards CA3140 output, Gate   = comes from LM311 output”

Comparing this information with the schematic, I ended up putting mine
on the board with the tab pointing straight up (away from the CA3140, no
crossing pins). Is this correct, or did I screw up?

3) Regarding power supplies, I found a Harrison 802B twin low voltage
power supply at a prop house for $3.00. (They thought it was a power
amp.) It has knobs on the front to adjust the voltage. I tested it out
and it seems quite stable, outputting +15V, -15V and ground. Anybody
know if this will work or are there some important criteria of which I’m
embarrassingly ignorant? (E.g. noise problems, hum, grounding problems,
etc.)

4) This is more of an aesthetic thing, but I want to add a couple LED's
to the Envelope generators. Can I just attach them to the ADSR out in
the same way that the LED is incorporated in the LFO? I'd like them to
flash when the envelope is triggered. Anybody tried this? (I know, it's
silly, but I have a couple bright blue LED's collecting dust...)

Well, any help would be grand. Thanks!!!