ULTIMATE EXPANDER Parts List

Ray Wilson authored this content while he was actively running MFOS as the founder and resident genius.
We retain the content because it reflects a valuable point of view representing that time and place.

Article by Ray Wilson

DescriptionPossible Source(s)
Majority of parts in a pre-populated Mouser Electronics project.

For some inexpensive parts I typically round up the Mouser Order to a multiple of 5. You can use the extra parts in a future project or copy and edit the project and reduce the amounts to exact quantities. The rounding adds a few dollars to the total order price.

!! NOTICE !!

I am not maintaining the pre-filled cart because I would be changing it every day due to items going in and out of stock at Mouser. The prefilled cart will at least give some guidance on the correct parts to buy.

Sometimes Mouser lists parts as back-ordered. After you click the link look over the project's part list and delete the parts from the cart that will not ship immediately so your order is not in limbo for months. You will have to find the missing parts elsewhere or call Mouser and ask for subs (1-800-346-6873).
See these pages for more electronic parts supplies:
Small Bear Electronics and SynthCube

Cart contains all electronic components except metal film 2K Ohm 1/4W +/-2% T.C. +3300 PPM tempco, SSM2210P, and AD633JNZ. You can copy the project and edit it as desired to add or remove components. There are some extra components here and there and the list assumes you will use SPDT toggles for both SPDT and SPST toggles.

Please read the list carefully before you click "Order Project".   

Sound Lab ULTIMATE EXPANDER Mouser Electronics Pre-Filled Cart
ANALOG DEVICES - AD633JNZ - Analog Multiplier  Newark Electronics
NATIONAL SEMICONDUCTOR LM386N-4 - AMP, AUDIO 0.7W  Newark Electronics
ANALOG DEVICES - SSM2210PZ - Matched BJT  
This part has become pretty scarce but here are several alternate solutions:

You can buy discrete matched NPN pairs from me here.

You can match your own transistors by hand

The unit will work with two plain old unmatched 2N3904 NPN transistors but the 1V/Octave tracking of the VCOs will be greatly diminished. The unit will work perfectly with three pairs of hand matched 2N3904 or 2N2222 NPN transistors.

Here is some more information about transistor matching. Moog on xistor matching (TL071CP can replace the LM741)

Electronic Design Bob Pease article on xistor matching.

National Semi Bob Pease article about transistor matching.

Electronic Design article on xistor matching.

Metal film 2K Ohm 1/4W +/-2% T.C. +3300 PPM tempco.
If using 2K carbon or metal film VCO temp drift increases.  
This part can be difficult to find but I sell them.

I sell metal film 2K Ohm 1/4W +/-2% T.C. +3300 PPM tempcos

Save a bit on toggle switches at All Electronics
MTS-8 (DPDT ON-ON MINI TOGGLE SWITCH)
MTS-4 (SPDT ON-ON MINI TOGGLE SWITCH)
Must get SPDT ON-OFF-ON MINI TOGGLE SWITCH from Mouser or other source.
All Electronics Toggle Switches

ULTIMATE EXPANDER Project Parts List

Printable Parts List

Qty. Description Value Designators
1  AD633JNZ Low Cost Analog Multiplier  AD633AN  U21  
1  CD4001 CMOS Quad NOR Gate  CD4001  U10  
1  CD40106 CMOS Hex Inverter  CD40106  U11  
1  CD4066 CMOS Quad Analog Sw  CD4066  U12  
2  LM13700 Dual gm OpAmp  LM13700  U2, U6  
2  LM386-4 Low Voltage Audio Power Amp  LM386-4  U18, U19  
1   SSM2210P Matched Pair NPN
(or 1 matched pair of 2N2222 or 2N3904)
How to match NPN transistors.   
SSM2210   U7  
3  TL071 JFET Op Amp  TL071  U8, U16, U23  
7  TL072 Dual JFET Op Amp  TL072  U1, U4, U5, U9, U14, U15, U20  
4  TL074 Quad JFET Op Amp  TL074  U3, U13, U17, U22  
1  2N3904 General Purpose NPN Transistor  2N3904  Q3  
3  2N3906 General Purpose PNP Transistor  2N3906  Q1, Q2, Q4  
10  1N914 Diode  1N914  D1, D2, D3, D4, D5, D6, D7, D8, D9, D10  
1  Potentiometer Audio Taper  100K  R123  
6  Small Potentiometer Audio Taper  100K  R100, R102, R108, R112, R116, R128  
3  Potentiometer Audio Taper  1M  R91, R92, R97  
4  Potentiometer Linear Taper  100K  R4, R45, R59, R93  
1  Potentiometer Linear Taper  1M  R150  
2  Potentiometer Linear Taper  25K  R161, R162  
1  Resistor 1/4 Watt 1%  499K  R12  
4  Resistor 1/4 Watt 1%  49.9K  R29, R31, R46, R50  
34  Resistor 1/4 Watt 1%  100K  R6, R9, R10, R19, R20, R22, R23, R41, R43, R47, R48, R51, R56, R58, R60, R64, R68, R80, R83, R88, R137, R138, R141, R142, R144, R145, R146, R148, R151, R152, R154, R156, R157, R160  
8  Resistor 1/4 Watt 1%  2K  R11, R13, R34, R37, R57, R65, R94, R143  
1  Resistor 1/4 Watt 1%  475 ohm  R7  
3  Resistor 1/4 Watt 5%  47K  R72, R75, R163  
1  Resistor 1/4 Watt 5%  2M  R74  
1  Resistor 1/4 Watt 5%  300K  R18  
4  Resistor 1/4 Watt 5%  30K  R44, R49, R52, R54  
1  Resistor 1/4 Watt 5%  33K  R5  
12  Resistor 1/4 Watt 5%  20K  R14, R15, R16, R17, R62, R63, R79, R81, R84, R131, R136, R140  
3  Resistor 1/4 Watt 5%  39K  R27, R38, R147  
6  Resistor 1/4 Watt 5%  3K  R107, R110, R113, R115, R121, R122  
2  Resistor 1/4 Watt 5%  4.7K  R55, R66  
3  Resistor 1/4 Watt 5%  4.7M  R33, R39, R133  
11  Resistor 1/4 Watt 5%  470K  R71, R103, R104, R105, R109, R111, R114, R117, R125, R127, R130  
4  Resistor 1/4 Watt 5%  100 ohm  R26, R28, R53, R70  
1  Resistor 1/4 Watt 5%  43K  R25  
15  Resistor 1/4 Watt 5%  10K  R2, R8, R77, R78, R82, R85, R86, R87, R95, R119, R149, R158, R159, R164, R165  
2  Resistor 1/4 Watt 5%  120K  R42, R61  
5  Resistor 1/4 Watt 5%  150K  R21, R32, R36, R40, R101  
1  Resistor 1/4 Watt 5%  180K  R35  
9  Resistor 1/4 Watt 5%  1K  R67, R90, R96, R98, R99, R106, R126, R135, R153  
9  Resistor 1/4 Watt 5%  1M  R24, R30, R76, R89, R118, R120, R124, R134, R139  
1  Resistor 1/4 Watt 5%  200K  R155  
2  Resistor 1/4 Watt 5%  10 ohm  R129, R132  
1  Trim Pot  100K  R73  
1  Trim Pot  2K  R69  
1  Trim Pot 10 Turn  100 ohm  R1  
1  Trim Pot 10 Turn  100K  R3  
6  Aluminum Electrolytic Capacitor 35V  10uF  C12, C16, C24, C30, C75, C76  
4  Aluminum Electrolytic Capacitor 35V  1uF  C17, C19, C55, C61  
2  Aluminum Electrolytic Capacitor 35V  220uF  C57, C63  
1  Aluminum Nonpolarized Capacitor 35V  10uF  C38  
2  Ceramic Capacitor (at least 50V)  .001uF  C31, C32  
2  Ceramic Capacitor (at least 50V)  .01uF  C25, C26  
2  Ceramic Capacitor (at least 50V)  .047uF  C56, C62  
43  Ceramic Capacitor (at least 50V)  .1uF  C4, C5, C6, C7, C9, C10, C11, C13, C14, C15, C18, C20, C22, C23, C27, C28, C29, C34, C39, C40, C41, C42, C43, C45, C46, C48, C49, C50, C51, C52, C53, C54, C58, C59, C60, C64, C65, C66, C67, C69, C71, C73, C74  
3  Ceramic Capacitor (at least 50V)  100pF  C1, C21, C33  
2  Ceramic Capacitor (at least 50V)  220pF  C2, C3  
1  Ceramic Capacitor (at least 50V)  .22uF  C72  
3  Ceramic Capacitor (at least 50V)  47pF  C37, C44, C47  
1  Ceramic Capacitor (at least 50V)  22pF  C8  
1  Tantalum Electrolytic Capacitor 35V  15uF  C36  
1  Tantalum Electrolytic Capacitor 35V  1uF  C35  
1  SPDT Mini Toggle Switch  SPDT  S3  
1  SPST Mini Toggle Switch  SPST  S2  
1  SPST Pushbutton N.O. Switch  SPST  S1  
7  Jack 1/4" 2 Terminal  Mono Jack  J1, J2, J3, J4, ADSR-TRIG, ADSR-GATE, VCF-CV  
1  Jack 1/4" Stereo Headphone  Stereo Headphone Jack  J5  
14  8 Pin Gold Contact Machined IC Sockets    You'll be glad you used sockets  
7  14 Pin Gold Contact Machined IC Sockets    You'll be glad you used sockets  
4  16 Pin Gold Contact Machined IC Sockets    You'll be glad you used sockets  
17  Potentiometer Knob    Properly fitting knobs for all pots (1/2" diameter recommended).  
22  Banana Jacks (Color 1)    Banana Jacks with color to denote inputs  
20  Banana Jacks (Color 2)    Banana Jacks with color to denote outputs  
24  Banana Plugs (Color 3)    Banana Plugs for 12 Banana Cables  

Miscellaneous Items You Will Need To Provide