Post Reply 
WP34s Repurposing Journey PhotoJournal
02-02-2015, 03:50 PM (This post was last modified: 02-05-2015 12:55 PM by MarkHaysHarris777.)
Post: #15
RE: WP34s Repurposing Journey PhotoJournal
Well, I'm updating 'flash-box' with control circuits and lights. The first set of mods will be the reset ground shot, and erase strobe; the more important of which is the erase strobe. I am providing contact bounce conditioning to the two SPDT momentary 'push' switches so that the ground shot and strobe are clean, and so that the flop is 'holding' the strobe high instead of my finger on a dirty contact switch.
The LED on the reset circuit doubles as the unit power light and blanks when the reset push button is pressed. The LED on the erase circuit comes on when the strobe is toggled high and goes out when the strobe is released.
The control circuits and lights are based on the following schematic:

[Image: schematic2.png]

The following two pics are some angles on the Manhattan bread-boarding so far... monitoring lights and comparators coming soon.

[Image: manhat2.png]

[Image: manhat3.png]


Kind regards,
Find all posts by this user
Quote this message in a reply
Post Reply 

Messages In This Thread
RE: WP34s Repurposing Journey PhotoJournal - MarkHaysHarris777 - 02-02-2015 03:50 PM

User(s) browsing this thread: 1 Guest(s)