Substrate — Hoodies
555 — Substrate Hoodie
The NE555 timer, drawn as its internal block diagram.
What you're wearing
Three five-kilohm resistors in series set the comparator thresholds at one third and two thirds of supply, and they are what the part is named after. A flip-flop between them, a discharge transistor below, eight pins. In production since 1972. Front print, nothing on the back. Unisex fit, fleece.
Materials & fit
- Fabric
- Brushed-back fleece, front print, made to order.
- Fit
- Regular fit, true to size — check the size guide before ordering.
Size guide
| M | 22" / 56 cm | 28" / 71 cm |
| L | 24" / 61 cm | 29" / 74 cm |
| XL | 26" / 66 cm | 30" / 76 cm |
| 2XL | 28" / 71 cm | 31" / 79 cm |
| 3XL | 30" / 76 cm | 32" / 81 cm |
| S | 20" / 51 cm | 27" / 69 cm |
Shipping & production
Made to order. Pressed and shipped in the US, with delivery time added on top depending on your destination.
US standard shipping runs $4.75–$7.98 depending on weight and destination — the exact rate is shown at checkout before you pay.
Each piece is made to order, so we can’t accept returns for a change of mind or the wrong size — please check the size guide first.
If an item arrives damaged or misprinted, contact us through the contact form within 30 days of delivery with a photo and we’ll arrange a free reprint or refund — no need to send anything back.
Same idea, different object
