Episode 552 - Magical Potion Bottle Rack

Inspired by a trip to a magical shop, Andy decides to make his potions more magical using electronics. Two 555 timer circuits are found in an old book. These are combined to product a signal with varying frequency and pulse width which drives the various effects.

Bill of Materials

Product Name	Manufacturer	Quantity	Buy Kit
Small Signal Diode, Single, 75 V, 150 mA, 1 V, 4 ns, 2 A	TAIWAN SEMICONDUCTOR	3	Buy Now
BC846, Bipolar Transistor, General Purpose, NPN, 65 V, 100 mA, 300 mW, SOT-23	ONSEMI	3	Buy Now
BCP56, Bipolar (BJT) Single Transistor, NPN, 80 V, 1 A, 1.6 W, SOT-223	STMICROELECTRONICS	1	Buy Now
NE556D Dual Timer 4.5 V to 16 V, SOIC-14	TEXAS INSTRUMENTS	3	Buy Now
Aluminium Electrolytic Capacitor, Radial Can - SMD, 100 µF, 35 V	KEMET	3	Buy Now
MC14017 Decade / Johnson Counter, SOIC-16	ONSEMI	2	Buy Now
ULN2003	TEXAS INSTRUMENTS	1	Buy Now
SMD Chip Resistor, 10 kohm, ± 1%, 250 mW, 1206 [3216 Metric], Thick Film, General Purpose	TE CONNECTIVITY	8	Buy Now
SMD Chip Resistor, 68 kohm, ± 1%, 250 mW, 1206 [3216 Metric], Thick Film, General Purpose	TE CONNECTIVITY	6	Buy Now
SMD Chip Resistor, 22 kohm, ± 1%, 250 mW, 1206 [3216 Metric], Thick Film, General Purpose	TE CONNECTIVITY	2	Buy Now
SMD Chip Resistor, 27 kohm, ± 1%, 250 mW, 1206 [3216 Metric], Thick Film, General Purpose	TE CONNECTIVITY	2	Buy Now
SMD Chip Resistor, 220 ohm, ± 1%, 250 mW, 1206 [3216 Metric], Thick Film, General Purpose	TE CONNECTIVITY	6	Buy Now
Multilayer Ceramic Capacitor, 0.1 µF, 50 V, 1206 [3216 Metric], ± 5%, X7R, C Series KEMET	KEMET	7	Buy Now
Multilayer Ceramic Capacitor, 1 µF, 50 V, 1206 [3216 Metric], ± 5%, X7R, C Series KEMET	KEMET	2	Buy Now
Multilayer Ceramic Capacitor, 10 µF, 50 V, 1206 [3216 Metric], ± 5%, X7R, C Series KEMET	KEMET	3	Buy Now
SMD Chip Resistor, 0 ohm, 200 V, 1206 [3216 Metric]	TT ELECTRONICS / WELWYN	6	Buy Now
LED, Blue, SMD, 0805	MULTICOMP PRO	6	Buy Now