Anyone have any documents for this logic design box? Looks like it was dristributed by Global Specialties as they sold a LD-2 version until recently(?)... http://www.tequipment.net/ELLD2.html It is pretty self-explanatory, but I would like to know the comments about the clock (555 timer) caps suggested. Too lazy to figure it out for myself, plus it is always nice to have the original documents! One sold in the UK back in September - I hope the seller scanned the manual: http://www.ebay.co.uk/itm/logic-designer-pencil-box-by-E-L-Instruments-/1908... The PencilBox is a breadboard based design box for TTL, etc. (mine looks to be from around the late 70s) with some LEDs, a dip switch, some logic gates, and a couple of push buttons. I use it when playing with Arduino related stuff or making simple designs that I want to test... Thanks, John :-#)# -- How to subscribe or unsubscribe from TTL http://seven.pairlist.net/mailman/listinfo/techtoolslist _______________________________________________ Techtoolslist mailing list Techtoolslist@flippers.com http://seven.pairlist.net/mailman/listinfo/techtoolslist FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment Archive site: http://seven.pairlist.net/pipermail/techtoolslist/