Parts List for REV1 FMDM-150M Analog Measurement Unit (AMU)

J1 - 3.5mm Stereo Chassis Jack
J2 - Mini-DIN-6 Female Chassis Connector
J3 - Mini-DIN-6 Female Chassis Connector
PJ1 - 2.1mm X 5.5mm Coaxial Power DC Jack - center pin is positive.

U1 - MC3403 Quad Op-Amp
U2 - 78L10 Voltage Regulator

Transistors are mounted flat to flat on the silkscreen.
Q1 - 2N2222
Q2 - 2N2907 
Q3 - 2N2222
Q4 - 2N2222
Q5 - 2N2222

Diodes are installed with the banded end in the square pad hole.
D1 - 1N4148
D2 - 1N4148
D3 - 1N4148
D4 - 1N4004

1 - 14 Pin Machine Socket - Match the notch to the notch on the silkscreen.

LED1 - Yellow LED 3mm  - Install last.
LED2 - Green LED 3mm   - Install last.

All fixed resistors are 1/8W
R1 - 10k
R2 - 10k
R3 - 10k Multi-Turn Pot
R4 - 24k
R5 - 10k
R6 - 10k 3/4 Turn Pot
R7 - 150k
R8 - 11k
R9 - 10k 3/4 Turn Pot
R10 - 10K Multi-turn Pot
R11 - 100k
R12 - 4.7k
R13 - 10k
R14 - 100k
R15 - 10k
R16 - 2.2k
R17 - 1k
R18 - 10k
R19 - 10k
R20 - 1K
R21 - 10k
R22 - 4.7k
R23 - 1k
R24 - 20k
R25 - 100k Multi-turn Pot
R26 - 100k Multi-turn Pot
R27 - 470k
R28 - 27k
R29 - 11k
R30 - 10k

The positive lead is longer on Polarized capacitors. This lead go into the square pad hole.
C1 - 103
C2 - 104
C3 - 22uF 16V Polarized Electrolytic
C4 - 100uF 25/35V Polarized Electrolytic
C5 - 10uF 16/25V Polarized Electrolytic
C6 - 102
C7 - 104
C8 - 47pF
C9 - 47pF
C10 - 22uF 16V Polarized Electrolytic
C11 - 104
C12 - 473
C13 - 100uF 25/35V Polarized Electrolytic
C14 - 104
C15 - 104
C16 - 10uF Non-Polarized Electrolytic - can be installed either way - both circuit pads are round.
C17 - 104
C18 - 100uF 25/35V Polarized Electrolytic

Z1 is a circuit trace fuse.  It can be renewed with a short piece of tiny (#40 or so) wire 
between the two holes.

FMDM-150M Analog Measurement Unit Circuit Board (REV1) Green

Extruded Aluminum Case & Aluminum FMDM-150M AMU Front / Rear Panels (black)
8 - 2.5 x 5mm Black Screws

Copyright 2025 Kevin K. Custer - W3KKC
Masters Communications
All Rights Reserved