Don -
That sounds like the "Earlier" V2 board. The later run I had fabricated doesn't have any code, and also has jumper JP10 added.
1K resistor nets worked fine for me.
Unicorn Electronics carries the 7805 in TO-3 format. You can also use LM309 or LM323 - both of which came in a TO-3 format.
Jameco carries the LM323K
Mouser carries the LM309K and LM323K, but sit down before you look at the price.
Don't order LM323K from China unless you like counterfeit IC's.
- Gary
On Saturday, November 22, 2014 8:52:17 PM UTC-5, Don Caprio wrote:
I'm not sure which version of John's Z80 board I have.
Couple questions:
1) Can the 1.1K Resistor nets be substituted with 1K ?
2) Where in the world do I get the 7805 in the TO-3 package? Tried
mouser, Jameco, digi-key.
3) How do I tell what version of the board I have? I see UL code:
E336755 GC-D1 94V-0 0512
Cheers!
--
Don Caprio
ilv...@gmail.com