Table I: Parts required to construct the BruProbe.
Quantity	Description	Part ID, Fig. 4	Vendor
1	LM34 temperature sensor	IC4	Digi-Key*
1	LT1009 voltage reference	IC3	Digi-Key
1	Resistor 1/4-W, 470 kOHM	R2	Digi-Key
1	Resistor 1/4-W, 100 kOHM	R3	Digi-Key
4	Resistor 1/4-W, 1MOHM	R1, R4, R8, R9	Digi-Key
1	Resistor 1/4-W, 100 OHM	R7	Digi-Key
1	Resistor 1/4-W, 8.2 kOHM	R6	Digi-Key
1	Resistor 1/4-W, 1 kOHM	R5	Digi-Key
1	SPDT toggle switch	On/Off, if desired	Digi-Key
1	DPDT toggle switch	S1	Digi-Key
1	Capacitor 50-V, 0.1 µF	C1	Digi-Key
1	Capacitor 25-V, 0.01 µF	C2	Digi-Key
1	Capacitor 25-V, 0.047 µF	C3	Digi-Key
1	Capacitor 10-V, 0.22 µF	C4	Digi-Key
1	Capacitor 100-V, 100 pF	C5	Digi-Key
1	Cap. Elec. 10-V, 22 µF	C6	Digi-Key
1	Potentiometer, 10-turn, 100 kOHM		Digi-Key
1	Potentiometer, 10-turn, 200 kOHM		Digi-Key
1	TC7106 D/A convertor	IC1	Digi-Key
1	LCD display	IC2	Digi-Key
1	Case		Digi-Key
1	Battery clip		Digi-Key
1	DIN receptacle, 3-pin		Digi-Key
1	DIN plug, 3-pin	C6	Digi-Key
4	20-pin strip socket	IC1, IC2 socket	Digi-Key
72 in.	28 AWG hook-up wire		Digi-Key
72 in.	28 AWG hook-up wire		Digi-Key
72 in.	28 AWG hook-up wire		Digi-Key
1	Brass tube 7/32-in. o.d. x 36 in.		Small Parts Inc. **
1	Circuit board and instruction kit		JB Distributing +
1	Prefabricated wand assembly		JB Distributing +
*Tel. 1-800-344-4539 **Tel. 305-557-8222   +Tel. 603-465-7633

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