Quote from: picowatt on April 28, 2012, 06:09:36 PM
.99,

Also, just to be a bit "picky", the FG/ M1 source current is bypassing the CSR due to the FG common being at ground.  Can you connect the FG common to the top of the CSR (or location 4)?

This particular schematic is reflective of the video demonstration "as-built" apparatus in terms of where the CSR is and how the FG is connected.

I can do another one (later) with the proper connections if you want, no problem.

Quote
I am not exactly sure of the best location for Losc with this modification.

Can't I simply connect it as the first diagram, but use point 3 as gnd?

Quote from: poynt99 on April 28, 2012, 08:39:38 PM
This particular schematic is reflective of the video demonstration "as-built" apparatus in terms of where the CSR is and how the FG is connected.

I can do another one (later) with the proper connections if you want, no problem.
Can't I simply connect it as the first diagram, but use point 3 as gnd?

.99.

That is what I thought you were going to do to the first dwg, just move the ground from 4 to 3.

Since you are using sim current probes, either way the question that TK asked regarding Q2 bias current has been answered.

PW

Quote from: TinselKoala on April 28, 2012, 07:58:17 PM
It's what the expensive bottle of pink stuff recommended for passenger cars. Racing: use pure water plus this stuff. By the time I'm in cold weather again I'll richen the mix with glycol, but now in the Texas early summer.... so far so good.I dunno. Two done, one almost done, one still flat, and the two "setasides" won't take as long, probably. Then I "usually" like to let them set for some time, check opencircuit voltages and so on.
Don't worry... we'll get there in time for the funeral.
Oh, I have a few other caps lying around. I've got about a hundred or so  30kV, 400pF doorknobs for example, N4700, but you probably don't want me to use those.

Man, this is a tough crowd tonight. Do you know what this reminds me of? When I was working on the Mylow farce, his proponent here WattsUp who moderated the thread we were on, kept denying that Mylow could have done it the way I said he did, and he kept coming up with more and more tests to perform. Like this one:
http://www.youtube.com/watch?v=ofkXAtAhqO8

Meanwhile.... I found a few other capacitors in my boxes.

The blue ones are RIFA PHE 820 M, 1 microFarad 275 V. The silver cylinders are 10000pF poly 500V and are indeed quite snappy even if low in capacity. I cut one open with a bandsaw once and it STILL was able to give me a shock, just the half-capacitor. And the little cylinders with axial leads are 0.1 uF monolithics, 100 V.

What do you think? (ETA: I also have some tantalums but I don't really want to subject them to the Ainslie component-destroyer. But if necessary..... why not. )

TK,

You have plenty of caps.  I'd try one of each in the photo in parallel.

I think anyone who ever visited a surplus store in the past has some of those axial lead glass .1uF ceramics!

PW

Quote from: TinselKoala on April 28, 2012, 03:28:26 AM
Note that Rosemary again has claimed in no uncertain terms that the FG cannot put current into the system. This means, of course, that when her FG is set to produce the long-period, negative signal, causing the oscillations for minutes at a time, NO CURRENT flows from or to the FG to or from the circuit.

Right?

This is easily testable. Even Rosemary could test it. If she only had someone to hook it up for her and explain what the numbers mean.

We've already tested it for Tar Baby, haven't we? I can't recall if we did it using the FG alone or just with the external DC power supply. No matter.... we know that the Interstate F43 is a "magic" function generator already. So it shouldn't surprise anyone if it does manage to stuff current up Tar Baby somehow. But of course Ainslie's IsoTech 324.... which nobody can find on the internet anywhere..... can't do this at all, it only makes VOLTAGE.

Right?

Back to this statement of TK's.  YES.  This is right. The function generator NEVER passes current other than back to it's own plug source.  What it does on the circuit is it applies a voltage as a result of it's current flow.  That applied voltage, in turn, induces a current flow on the circuit where the voltage is applied.  So. Well done TK.  It seems you're getting it.  You see this now.  Thank you God.  Because, then, self-evidently - it would be following the Laws of Induction.  And without those laws of induction it would not be able to generate any current flow at all.  It's not a 'power supply source'.    That passes current.  It ONLY applies a voltage.

Rosie Pose

Had to modify this.  Somewhat.  LOL

Quote from: picowatt on April 28, 2012, 09:51:32 PM
.99.

That is what I thought you were going to do to the first dwg, just move the ground from 4 to 3.

Since you are using sim current probes, either way the question that TK asked regarding Q2 bias current has been answered.

PW

One of them was, anyway. Clearly there is bias current... as we have also determined theoretically and in the hardware. So theory, simulation, and hardware agree.

The second question was about Anslie's response to the information from .99's sim. How can the sim result (not to mention the hardware and the theory) be reconciled with Ainslie's categorical denial that current flows through the FG or that the FG can be a source of power to the circuit?