Looking, good...... just had a quick peek before going to bed. A few omissions immediately evident:
1) The 100uF tant. in the velocity integrator schematic really needs a voltage rating greater than the positive supply rail.
2) In the Ball Vertical Movement circuit the current limiting resistor in series with the relay contacts is missing. That 1uF will weld the reed relay's contacts without it.
3) Not a big deal, but the waveform highlighted in the Sounds Effects circuit is a squarewave rather than a triangle wave.
In the simplified Reference Regulator equivalent circuit I omitted the source impedance balancing resistor between the zener and the op-amp positive input.
Now I'm off to bed.
I'd be quite grateful to anyone who designs a board.
What kind of frequency response does this require? If it's sub-200 KHz, I have a good excuse to restore an antique 1940s portable oscilloscope.
I'd be quite grateful to anyone who designs a board.
What kind of frequency response does this require? If it's sub-200 KHz, I have a good excuse to restore an antique 1940s portable oscilloscope.
200 KHz should be OK, but the x & y amplifiers need to be DC-coupled (have never seen an example at that vintage) and a suitable Z intensity modulation input is highly desirable.
I've only had a somewhat quick look, for now.
I love the way you have put the op-amp equivalent circuit, in the schematic, that is really nice and helpful!
Should the (power supply) voltage regulation circuits be in that schematic (or have I missed them and they are there ?), or are they on another sheet or something ?
GK did that in his hand drawn schematic, but I'd eventually like to go back and put down equivalent circuits for the rest of the schematics. There are more op amps, flip flops, monostable timers, etc. hidden away and I think it would be a great way to show people how they're made.
GK did that in his hand drawn schematic, but I'd eventually like to go back and put down equivalent circuits for the rest of the schematics. There are more op amps, flip flops, monostable timers, etc. hidden away and I think it would be a great way to show people how they're made.
I really like them, too. Great feature, Tim.
Speaking of which, for the one on the first page, "Equivilent" -> "Equivalent".
I found another one earlier: On the Player 1 push button, I assume we want to "Serve" the ball, not "Sever" them! XD
Timb, I found an open wire on your schematic, see attached photo.
Question: You also have numerous slightly mis-positioned junctions at wired 'T' joints, I assume these are ok?
I've only had a somewhat quick look, for now.
I love the way you have put the op-amp equivalent circuit, in the schematic, that is really nice and helpful!
Should the (power supply) voltage regulation circuits be in that schematic (or have I missed them and they are there ?), or are they on another sheet or something ?
GK did that in his hand drawn schematic, but I'd eventually like to go back and put down equivalent circuits for the rest of the schematics. There are more op amps, flip flops, monostable timers, etc. hidden away and I think it would be a great way to show people how they're made.
If those are connected, then everything else looks fine...
Alternatively you can just add a jumper to select either the flip-flops Q or !Q.
Timb, you forgot to label the Z axis output connector and will you be providing an optional inverted Z axis output? It would only require an additional transistor and 3 resistors.
This is what I am currently working on and all pages/diagrams will eventually get collated into a single PDF document. Attached is the equiv. diagram of the sounds effects circuit:
Wow, that looks great! Feel free to share as you go along and I'll move it over to the digital schematic as well.
Wow, that looks great! Feel free to share as you go along and I'll move it over to the digital schematic as well.
Okay, here is the Function Generator.......