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FlopSeq Sequencer Board [Updates]
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Author FlopSeq Sequencer Board [Updates]
fivesteppath
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Joined: 12 Oct 2010
Last Visit: 17 Apr 2014

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PostPosted: Wed Nov 30, 2011 9:57 am    Post subject: Reply with quote Add User to Ignore List

J3RK wrote:
Good news on the individual gates. The are VERY easily tapped from the 4028 Bin to Dec outputs. (either at the LED pad, or resistor leads next to them.) I tested it by triggering the input of a dual 281 in AD mode. Works perfectly. I'd still like to take a quick look on the scope, just to see what each individual gate pulse looks like, but yes, this does work.

It looks very doubtful that the reset is going to work without fairly heavy modification. If I can squeeze this in before the end of the week, or find an easier way, I will, otherwise, it will have to wait for the large version sometime in the future.


Awesome! Expect $ x 2 tomorrow from me. Don't mean to nag but BOM would still be great grin

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J3RK
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Joined: 22 Dec 2009
Last Visit: 18 Apr 2014

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Location: Seattle

PostPosted: Wed Nov 30, 2011 12:24 pm    Post subject: Reply with quote Add User to Ignore List

Sorry, I should be able to pop the BOM up tonight. It's created, just need to copy/paste it.

Things have been incredibly busy at work for the past couple of weeks, so I've been a little slower than I'd like.
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J3RK
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Joined: 22 Dec 2009
Last Visit: 18 Apr 2014

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Location: Seattle

PostPosted: Fri Dec 02, 2011 7:36 pm    Post subject: Reply with quote Add User to Ignore List

Ack! I must sincerely apologize, for I'm living up to my forum name. I need to get that BOM up. I'm sending myself a calendar reminder to do this right now. d'oh! Sorry about that. It'll be up tonight. Orders will stay open through the weekend, and the production run will be ordered Mondayish. Thanks again, and I'll set up us the BOM shortly. hihi
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J3RK
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Joined: 22 Dec 2009
Last Visit: 18 Apr 2014

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PostPosted: Sun Dec 04, 2011 1:32 pm    Post subject: Reply with quote Add User to Ignore List

Sorry for the long delay. Here is the BOM. It's fairly simple. Caps are .1" lead spacing for non-electrolytics. The electrolytics are .125"

Code:
Bill Of Materials
=================

QTY  PART-REFS           VALUE                         
---  ---------           -----                         
Resistors
---------
8    R1-R8               470                                               
2    R9,R19              100                                               
8    R10,R11,R13-R18     10k                                               
2    R12,R20             1k                                               
1    R23                 82k                                               

Capacitors
----------
2    C1,C3               10nF                                           
1    C2                  100nF                                             
2    C4,C5               10uF+ Electrolytic (power filtering)                                             

Integrated Circuits
-------------------
1    U1                  4029                                             
1    U2                  4028                                             
1    U3                  4051                                             
2    U4,U5               4013                                             
1    U7                  LT1114/TL074                                         
1    U8                  4093                                             

Transistors
-----------
1    Q1                  2N3904                                           

Diodes
------
8    D1-D8               LED-GREEN                                         
3    D11-D13             DIODE (1N4148 or similar)                                           

Miscellaneous
-------------
8    RV1-RV8             100k                                             
1    SW1                 SW-ROT-3                                       
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fivesteppath
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Joined: 12 Oct 2010
Last Visit: 17 Apr 2014

Posts: 123

PostPosted: Sun Dec 04, 2011 3:24 pm    Post subject: Reply with quote Add User to Ignore List

thumbs up pm'd.
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303monkey
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Joined: 03 Mar 2009
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Location: Nodnol

PostPosted: Wed Dec 07, 2011 12:08 pm    Post subject: Reply with quote Add User to Ignore List

I wanted one of these too
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fivesteppath
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PostPosted: Sat Jan 07, 2012 11:57 pm    Post subject: Reply with quote Add User to Ignore List

Before I order a few would this badboy be good for the job?

http://www.mouser.com/Search/ProductDetail.aspx?R=SR2511F-0303-19R0B-E 9-S-Wvirtualkey14860000virtualkey105-SR2511F-33S

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Jarno
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Joined: 15 Nov 2010
Last Visit: 17 Apr 2014

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Location: Rosmalen, NL

PostPosted: Wed Mar 07, 2012 10:29 am    Post subject: Reply with quote Add User to Ignore List

Dustin, do you have a layout picture of these boards, and a schematic?

I usually mark which components I did and didn't place, and also for remembering to order certain components.
The schematic is useful to determine possible component substitutions.
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J3RK
Super Deluxe Wiggler


Joined: 22 Dec 2009
Last Visit: 18 Apr 2014

Posts: 3376
Location: Seattle

PostPosted: Wed Mar 07, 2012 2:24 pm    Post subject: Reply with quote Add User to Ignore List

Jarno wrote:
Dustin, do you have a layout picture of these boards, and a schematic?

I usually mark which components I did and didn't place, and also for remembering to order certain components.
The schematic is useful to determine possible component substitutions.


I should be able to put a board image together tonight for this.
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Jarno
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Last Visit: 17 Apr 2014

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Location: Rosmalen, NL

PostPosted: Wed Mar 07, 2012 2:43 pm    Post subject: Reply with quote Add User to Ignore List

Thanks! Boards look great btw. Like the layout of the 258 boards as well lots of room for different types of components.
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