Show Posts

Profile Info
- Summary
- Show Stats
- Show Posts

This section allows you to view all Show Posts made by this member. Note that you can only see Show Posts made in areas you currently have access to.

Messages - makerdude

Open 7400 Competition / [Entry] 7400 Based Full Wave Rectifier

September 21, 2011, 09:09:23 am

Here's my entry to the 7400 contest

I (mis)used two 74LS00 as rectifiers to convert the AC signal from a transformer to DC and then connect it to my sample load (LED flasher).

http://http://makerdude.com/blog/7400-based-full-wave-rectifier/

I've added a couple of photos, the schematic, and a video.

Open 7400 Competition / Re: New entry, but BB will not play

September 20, 2011, 06:32:05 am

I've also sent an entry over the weekend. Hope it went through.

( ! ) Fatal error: Uncaught exception 'Elk_Exception' with message 'Please try again. If you come back to this error screen, report the error to an administrator.' in /var/www/dangerousprototypes/forum/sources/database/Db-mysql.class.php on line 696
( ! ) Elk_Exception: Please try again. If you come back to this error screen, report the error to an administrator. in /var/www/dangerousprototypes/forum/sources/database/Db-mysql.class.php on line 696
Call Stack
#	Time	Memory	Function	Location
1	0.0118	2259568	session_write_close ( )	...(null):0
2	0.0120	2391144	ElkArte\sources\subs\SessionHandler\DatabaseHandler->write( )	...(null):0
3	0.0121	2391920	Database_MySQL->query( )	.../DatabaseHandler.php:119
4	0.0558	2530640	Database_MySQL->error( )	.../Db-mysql.class.php:273