Those are carbon film resistors, where the blue ones are metal films. The carbons have 4 color coding bands instead of the 5 on the metal films, but they will perform equivalently in the Mouse circuit, so no worries. The one on the left is a 1K5 and the one on the right is a 4K7. You can read about how to decode the color bands here:
http://byocelectronics.com/resistorcodes.pdf
_________________
“My favorite programming language is SOLDER” - Bob Pease (RIP)
My Website *
My Musical Gear * My DIY Pedals:
Pg.1 -
Pg.2