Montreal Weather Recorder, by Jacques Brodeur VE2EMM, Jan, 2004

************************* MAIN BOARD *****************************
C1 = 10uF EL 25V
C2,C3,C5,C8,C13,C14,C16,C17 = 0,1uF CER
C4 = 100uF EL 16V
C6 = 470pF CER
C7,C8 = 0,5uF CER 
C10 = 3-10 pF variable Sprague Goodman GKG10015, DK# SG10015-ND
C11= 10pF CER
C12 = 18pF CER
C15 = 0,22uF CER
C18,C19 = 1uF EL 35V

R1,R3,R5,R6,R7,R8,R9,R10,R11,R12,R14 = 10K
R2 = 2K7
R4 = 68K
R13,R18 = 4K7
R15 = 270R, 1/2 Watt
R16 = 360K
R17 = 100K
R19 = Reserved for battery charging, adjust for a current of 1%
      of the A/H rating of the rechagable battery.

D1,D2,D3,D4 = SCHOTTKY barrier rectifier 1N5820 or  DK# SR106CT-ND
IC1 = LM2931AT-5.0, low dropout, TO-220,  DK# LM2931AT-5.0-ND
IC2 = MAX495CPA, OP AMP, DK# MAX495CPA-ND
IC3 = PIC16F876A-20/SP, 20 mHz 28 DIL, PROGRAMMED MICROCONTROLLER,
                                              DK# PIC16F876-20/SP-ND
IC4 = MAX868EUB, SM, MICROMAX package (very small), MAXIM SAMPLE,
                                  REGULATED INVERTING CHARGE PUMP
D1,D2,D3,D4 = SCHOTTKY BARRIER RECTIFIER, 40V 1A, DK# 1N5819DICT-ND
SEN1 = MOTOROLA MPX5100AP, 0<15 PSI, ABSOLUTE PRESSURE SENSOR, NEWARK
SEN2 = DS18S20, Maxim, DK# DS18S20-ND
VR1 = 1K0 TRIM POT, DK# D4AA13-ND
VR2 = 50K TRIM POT, DK# D4AA54-ND
VR3 = 10K TRIM POT, DK# D4AA14-ND
X1 = 4.194304mHz MICROPROCESSOR XTAL, DK# X157-ND
DSP1 = LCD GRAPHIC DISPLAY OPTREX DMF5001NY-LY-AIE, 160X120 DOTS
                      LED BACKLIGHTED,Pioneer-Standard Electronics
                                      http://www.ied.pios.com/
B1 = 4AAA or AA ALCALINE CELLS AND HOLDERS, or 6 rechargable cells.
S1 = SPDT MINIATURE SLIDE or TOGGLE SW, DK# EG1901-ND
S2,S3,S4,S5 = MIN NO PB, DK# SW263CT-ND
J1,J2,J3,J4,J5,LCD = 5 of 10 PINS POST HEADER, WM6410-ND
P1,P2,P3,P4 = 2 SOCKETS PLUG, DK# A23793-ND
MISC:
2 CONDUCTOR twisted pair cable to the TEMP SENSOR.
9 TO 12 VOLTS DC WALL WART
20 conductor flat cable with a 2 socket PLUGS DK# CSC20T-ND
                                         for the LCD display
*******************************************************************