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Old 28th August 2013, 12:43 PM   #11
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Location: Toronto, eh
OK, I got it working.
I just changed the name of the top polygon
the GND.
Just give all of your grounds the same name.
The copper and electrons don't care what you
call them. If it needs to connect, give it the
same name.

By the way, what you built is an Apheared 47, not a CMoy.

Cheers and happy building.

Last edited by Avro Arrow; 28th August 2013 at 12:45 PM. Reason: I see you called it an A47 in the firsy post...
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Old 29th August 2013, 03:22 AM   #12
Yurk is offline Yurk  United States
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Thanks for your all your help. Naming all the grounds the same will connect them, but I wanted to keep certain grounds on the top of the board, and certain ones on the bottom of the board. I realize it's not necessary in this simple circuit, but I wanted to try it anyway.

So, I'll just add another hole that's tied to AGND and jumper it to MGND. It's not as elegant as what I wanted (one hole), but it will serve the purpose. This is something I'll have to keep digging at before I get into more complicated designs. Or, the two hole method may be the easiest way. (In Eagle). I realize this is a special purpose sort of thing, not really needed, as most keep all their grounds on the same plane.

Oh, and I should've changed the title to Apheared 47, I think I did mention it somewhere in the first post. I haven't added all my comments to the Eagle schematics to explain a lot of the options on the board either.

Thanks again Avro for all your help and time in answering my stupid questions!
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Disclaimer: I'm an amateur. I reserve the right to be wrong. Your mileage may vary. Get a second opinion. Maybe a third opinion. etc.
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Old 24th October 2013, 02:22 AM   #13
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Default Newbe on the block

Hi,

I'm absolutely new in this, and i would like to build this. I've created a partslist , and this weekend i will set the schematics up on a breadboard. Two questions, and forget me for not understanding some principals in reading schematics, one - what is the power source and voltage? and Second, what needs to be wired on the wirepads?

I do understand that the board is not big enough for connectors and switches, but i need some assistance with hooking up the correct device to the wires.

Thanks in advance,
Alexander
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Old 24th October 2013, 03:52 AM   #14
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The power source and voltage is ultimately a decision for the builder, and depends on op amps used, desired output voltage swing, etc. What is commonly used, and I think was used in the original CMoy circuit, is a 9-volt battery with a virtual ground. Two 9V batteries will also work, connected to make a bipolar supply of +9V and -9V.
I'm not sure what you mean by "wired on the wirepads." Maybe a photo or highlighting a section of the schematic would aid understanding. Are you uncertain as to what parts will be off-board and require hookup wires? A definitive list depends on the board layout, for example a PCB-mounted input jack versus one mounted on the front panel with hookup wires back to the circuit board.
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Old 24th October 2013, 05:13 AM   #15
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This is the board that i would like to use. As the designer mentioned in this thread, the board is to small for all components to fit. So some wires need to be soldered to the board. Sounds stupid, but i already have a hard time finding the drilled holes for the battery... Click the image to open in full size.
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Old 24th October 2013, 05:22 AM   #16
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This is the part list that for this board. I do understand part of the schematics, and can see where most of the components go. But the wirepad list makes me scratch my ears...

Partlist

Exported from CMOY.sch at 10/24/13 9:45 AM

EAGLE Version 6.5.0 Copyright (c) 1988-2013 CadSoft

Assembly variant:

Part Value Device Package Library Sheet

BNEG 2,54/1,54 2,54/1,54 2,54/1,54 wirepad 1
BPOS 2,54/1,54 2,54/1,54 2,54/1,54 wirepad 1
C1 470uF CPOL-USE5-10.5 E5-10,5 rcl 1
C1A 0.47uF C-US150-054X183 C150-054X183 rcl 1
C1B 0.47uF C-US150-054X183 C150-054X183 rcl 1
C1L 0.022uF C-US150-054X183 C150-054X183 rcl 1
C1R 0.022uF C-US150-054X183 C150-054X183 rcl 1
C2 470uF CPOL-USE5-10.5 E5-10,5 rcl 1
C2L1 0.1uF C-US150-054X183 C150-054X183 rcl 1
C2L2 0.022uF C-US150-054X183 C150-054X183 rcl 1
C2R1 0.1uF C-US150-054X183 C150-054X183 rcl 1
C2R2 0.022uF C-US150-054X183 C150-054X183 rcl 1
C3 4.7uF CPOL-USE2.5-5 E2,5-5 rcl 1
C4 4.7uF CPOL-USE2.5-5 E2,5-5 rcl 1
C5 10uF CPOL-USE2.5-5 E2,5-5 rcl 1
C6 10uF CPOL-USE2.5-5 E2,5-5 rcl 1
C7 0.1uF C-US025-025X050 C025-025X050 rcl 1
C8 0.1uF C-US025-025X050 C025-025X050 rcl 1
D1 GREEN LED5MM LED5MM led 1
D2 1N4148-3 1N4148-3 1N4148-3 diode 1
D3 1N4148-3 1N4148-3 1N4148-3 diode 1
D4 1N4004DO14_10A 1N4004DO14_10A DO41_10A diode 1
D5 1N4004DO14_10A 1N4004DO14_10A DO41_10A diode 1
D6 1N4004DO14_10A 1N4004DO14_10A DO41_10A diode 1
D7 1N4004DO14_10A 1N4004DO14_10A DO41_10A diode 1
GBY 2,54/1,54 2,54/1,54 2,54/1,54 wirepad 1
GIN 2,54/1,54 2,54/1,54 2,54/1,54 wirepad 1
GLEV 2,54/1,54 2,54/1,54 2,54/1,54 wirepad 1
GOUT 2,54/1,54 2,54/1,54 2,54/1,54 wirepad 1
IC1 7812TV 7812TV TO220V linear 1
IC2 7912 79 TO220V linear 1
IG 2,54/1,54 2,54/1,54 2,54/1,54 wirepad 1
IL 2,54/1,54 2,54/1,54 2,54/1,54 wirepad 1
IR 2,54/1,54 2,54/1,54 2,54/1,54 wirepad 1
LIN 2,54/1,54 2,54/1,54 2,54/1,54 wirepad 1
LOUT 2,54/1,54 2,54/1,54 2,54/1,54 wirepad 1
MGND 2,54/1,54 2,54/1,54 2,54/1,54 wirepad 1
OPT 2,54/1,54 2,54/1,54 2,54/1,54 wirepad 1
Q1 2N3904 MPS8099 TO92-8099 transistor 1
Q2 2N3906 MPS8599 TO92-8099 transistor 1
R1 10k R-US_LEACH_0.4_RES LEACH_0.4_RES resistor 1
R1A 4.7K R-US_LEACH_0.4_RES LEACH_0.4_RES resistor 1
R1AL 2K R-US_LEACH_0.4_RES LEACH_0.4_RES resistor 1
R1AR 2k R-US_LEACH_0.4_RES LEACH_0.4_RES resistor 1
R1B 4.7K R-US_LEACH_0.4_RES LEACH_0.4_RES resistor 1
R1BL 1.5K R-US_LEACH_0.4_RES LEACH_0.4_RES resistor 1
R1BR 1.5k R-US_LEACH_0.4_RES LEACH_0.4_RES resistor 1
R2 4.7K R-US_LEACH_0.4_RES LEACH_0.4_RES resistor 1
R2A 100K R-US_LEACH_0.4_RES LEACH_0.4_RES resistor 1
R2B 100K R-US_LEACH_0.4_RES LEACH_0.4_RES resistor 1
R2L 1K R-US_LEACH_0.4_RES LEACH_0.4_RES resistor 1
R2R 1K R-US_LEACH_0.4_RES LEACH_0.4_RES resistor 1
R3 4.7K R-US_LEACH_0.4_RES LEACH_0.4_RES resistor 1
R3A 10K R-US_LEACH_0.4_RES LEACH_0.4_RES resistor 1
R3B 10K R-US_LEACH_0.4_RES LEACH_0.4_RES resistor 1
R3L 9.1K R-US_LEACH_0.4_RES LEACH_0.4_RES resistor 1
R3R 9.1K R-US_LEACH_0.4_RES LEACH_0.4_RES resistor 1
R4 10 R-US_LEACH_0.4_RES LEACH_0.4_RES resistor 1
R4A 47 R-US_LEACH_0.4_RES LEACH_0.4_RES resistor 1
R4B 47 R-US_LEACH_0.4_RES LEACH_0.4_RES resistor 1
R4L 3.3K R-US_LEACH_0.4_RES LEACH_0.4_RES resistor 1
R4R 3.3K R-US_LEACH_0.4_RES LEACH_0.4_RES resistor 1
R5 10 R-US_LEACH_0.4_RES LEACH_0.4_RES resistor 1
R5A 47 R-US_LEACH_0.4_RES LEACH_0.4_RES resistor 1
R5B 47 R-US_LEACH_0.4_RES LEACH_0.4_RES resistor 1
R5L 3.3K R-US_LEACH_0.4_RES LEACH_0.4_RES resistor 1
R5R 3.3K R-US_LEACH_0.4_RES LEACH_0.4_RES resistor 1
RIN 2,54/1,54 2,54/1,54 2,54/1,54 wirepad 1
ROUT 2,54/1,54 2,54/1,54 2,54/1,54 wirepad 1
S1L1 2,54/1,54 2,54/1,54 2,54/1,54 wirepad 1
S1L2 2,54/1,54 2,54/1,54 2,54/1,54 wirepad 1
S1L3 2,54/1,54 2,54/1,54 2,54/1,54 wirepad 1
S1R1 2,54/1,54 2,54/1,54 2,54/1,54 wirepad 1
S1R2 2,54/1,54 2,54/1,54 2,54/1,54 wirepad 1
S1R3 2,54/1,54 2,54/1,54 2,54/1,54 wirepad 1
S2L1 2,54/1,54 2,54/1,54 2,54/1,54 wirepad 1
S2L2 2,54/1,54 2,54/1,54 2,54/1,54 wirepad 1
S2L3 2,54/1,54 2,54/1,54 2,54/1,54 wirepad 1
S2R1 2,54/1,54 2,54/1,54 2,54/1,54 wirepad 1
S2R2 2,54/1,54 2,54/1,54 2,54/1,54 wirepad 1
S2R3 2,54/1,54 2,54/1,54 2,54/1,54 wirepad 1
TLE TLE2426CLP TLE2426CLP TO226AA tle2426 1
U1 OPA2132P OPA2132P DIL08 burr-brown 1
U2 OPA2132P OPA2132P DIL08 burr-brown 1
XL-JMP 2,54/1,54 2,54/1,54 2,54/1,54 wirepad 1
XR-JMP 2,54/1,54 2,54/1,54 2,54/1,54 wirepad 1
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Old 24th October 2013, 07:08 AM   #17
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First of all this thread title really should be changed to Crazy A47 board. If the mods don't see this post I'll send a report.

That is a CAD-generated component list. The wirepads listed look to be jumper wires and connections for the offboard components. For example, this
Quote:
BNEG 2,54/1,54 2,54/1,54 2,54/1,54 wirepad 1
BPOS 2,54/1,54 2,54/1,54 2,54/1,54 wirepad 1
would be where the DC power supply connects, and this
Quote:
IG 2,54/1,54 2,54/1,54 2,54/1,54 wirepad 1
IL 2,54/1,54 2,54/1,54 2,54/1,54 wirepad 1
IR 2,54/1,54 2,54/1,54 2,54/1,54 wirepad 1
would be Input Ground, Input Left, and Input Right respectively.
I need to gather all the schematics and have a look to figure it all out, but that won't be until after I get some shuteye. It's 2AM here.
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Old 24th October 2013, 07:22 AM   #18
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Thanks, that would be great. I'm reading into it as well. However we are getting close to the end of the day at this side of the world.

Again thanks for offering to look at the schematics.

Alexander
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Old 24th October 2013, 11:58 AM   #19
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Quote:
Originally Posted by avaniperen View Post
Sounds stupid, but i already have a hard time finding the drilled holes for the battery... Click the image to open in full size.
The battery holes are on the left at the rail splitter) and are labeled BPOS and BNEG
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Old 24th October 2013, 02:07 PM   #20
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I like it!

I'd suggest having a look at Diptrace, it has a free edition, and I've found it to be very intuitive to use. Much much more so than EAGLE.

I use iteadstudio for my prototypes, they're very competitive priced, and make pretty high quality boards to boot

Peace
chris
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