Looking at some of the layouts here I've noticed a few component types I don't understand (being a new guy and all). Would someone care to share with me what the following terms mean?
Rb1 - Does this mean bias resistor #1
Re - Does this mean emitter resistor
4k7, 2k2 etc - Does this mean four thousand seven ohms and two thousand 2 ohms? Seems weird to have a 2002 Ohm resistor.
Thanks in advance, I'm hoping to start my first transistor based pedal (if it'll ever cool off in the garage) and I didn't recognize that symbology.
Quote from: Hiwatt25 on July 18, 2006, 07:46:43 PM
Looking at some of the layouts here I've noticed a few component types I don't understand (being a new guy and all). Would someone care to share with me what the following terms mean?
Rb1 - Does this mean bias resistor #1
Re - Does this mean emitter resistor
4k7, 2k2 etc - Does this mean four thousand seven ohms and two thousand 2 ohms? Seems weird to have a 2002 Ohm resistor.
Thanks in advance, I'm hoping to start my first transistor based pedal (if it'll ever cool off in the garage) and I didn't recognize that symbology.
I don't know what schematic you are referring too but I would guess that Rb is a bias resistor and Re is a emitter resistor but once again depends on the schematic and perhaps the nomenclature the designer has chosen.
4k7 = 4.7K
2k2 = 2.2K
Andrew
Wow, that was fast. Thanks.
The schematic in question is the Range Maistro from Tone Pad but I've seen others that use the same type of stuff.
How come some guys choose to write 4k7 instead of 4.7K? Is it an English/Metric kinda thing?
Quote from: Hiwatt25 on July 18, 2006, 07:55:27 PM
Wow, that was fast. Thanks.
The schematic in question is the Range Maistro from Tone Pad but I've seen others that use the same type of stuff.
How come some guys choose to write 4k7 instead of 4.7K? Is it an English/Metric kinda thing?
No prob. Sometimes on schematics with poor resolution the decimal might be hard to see meaning 4.7K might be mistaken for 47K. Putting the "k" in between indicates that it is 4K (K is short for kilo which means thousand) and 700 ohms thus 4700 ohms or 4.7K.
Andrew
... and after squinting at some crappy photocopied schematics (not only online, but in certain books), I think the "k"-nomeclature is utterly brilliant!