notes about LCD availability

diff --git a/Notebook b/Notebook
index ca976e17c3bf1d997f1e8fe44fe365841e62fb16..ae2722d88c108c808b76bc245da50a77a90c3e2e 100644 (file)
--- a/Notebook
+++ b/Notebook
@@ -28,3 +28,26 @@ and controlling a FET switch on the output might be smarter someday?
        edge-launched SMA
        2x1 100mil right-angle header
 
+2023.02.10
+- the LCD digits we've used, Lumex LCD-S101D14TR, are only available now if
+  we're willing to order 3150 pieces at !.85 each or $5,827.50.  That's just
+  not reasonable when we only need 3 per unit and a big build might be 35
+  units!
+
+- DK and Mouser both have the Varitronix VI-611-DP-FH-W in stock.  This is a
+  6-digit LCD display whose digits are 25.4 mm tall instead of 34.54.  This
+  LCD module would require the PCB width to grow an inch in width to 5.5 
+  inches.  A quick look at the FreeCAD file suggest this is manageable without
+  a complete re-design of the panel.  By using the panel to only expose 3 of
+  the digits, we could mimic the existing functionality.  At $16.27 for q5 
+  and above from Mouser, this seems like a credible way of making more TeleLCO
+  in 2023?
+
+2023.02.15
+- we should have 31 SOC left after TeleMega v6.0 build if all goes well, which
+  means we should target a batch size of 30 boards.
+
+- 1170NF in orange is hard to get.  The part number is 1170-001-150. 
+  mteagleent.com seem willing to sell me 30 pieces for $1,520.40 plus $15.00 
+  shipping.  Pounce on it?
+