What parts would you recommend stocking?
The list below contains parts that would be common to a variety of
circuits designs and experiments.
|BJT, NPN, high gain
|BJT, PNP, high gain
|N-CH Logic Level FET, 55V, 47A, TO-220
|N-CH Logic Level FET, 30V, 40A, TO-220
|N-CH Logic Level FET, 60V, 200mA, TO-92
LM317 adjustable regulator has an adjustable output voltage that
can range from 1.2V to 37V, and a maximum output current of 1.5A.
Two resistors are required to adjust the output voltage.
74AHC series (or other series with 5V tolerant inputs).
These devices are useful for interfacing 5V and 3.3V systems together.
|Single supply op-amp (3-15V)
1%, 1/4W resistors. 1% resistors are not much more expensive than 5%
and can be be handy when you need to adjust the gain of an op-amp or
trim the output of an adjustable regulator. Usually it makes sense to
purchase a kit of resistors with five to ten of each value. As you run
out of common values (like 1K, 10K, etc) restock those values by
buying 100 pieces. If a reasonably priced kit is not available I
would purchase the following values --
For capacitors up to 1µF I would use ceramic capacitors. They
are reasonable priced and non-polarized. I would purchase X7R (or X5R)
type capacitors for values from 1000pF to 1µF and NP0 type
capacitors for values below 1000pF. Some common values --
| 33pF, 50V, NP0
| 100pF, 50V, NP0
| 1000pF, 50V, NP0
| 4700pF X7R
| 10000pF X7R
| 47000pF X7R
| 0.1uF X7R
| 0.47uF X7R
| 1uF X7R
| 10uF, 25V Electrolytic, Low ESR
| 100uF, 25V Electrolytic, Low ESR
- UL1050 PVC Insulated Wire
- Thick insulation, 30AWG strands. Good for crimps.
- UL1213 High Temperature Teflon Insulated Hookup Wire
- Teflon insulation won't melt when soldering, 30AWG to 38AWG
- Uninsulated Buss Wire
- The sizes I find most useful are 22AWG, 24AWG, 28AWG
- Teflon Tubing
- Goes over the uninsulated buss wire