Electronic Components

8051/8031 series MCU replace/upgrade ROM issues ?

my 8031 board is essentially a romless 8051 (minus program memory as datasheet says) . the board has an external ROM ch...

11 comments posted 18yrs

posted by some

11 comments posted 18yrs posted by some

how to find compatible component ? search made me bleary brained

so i have a **DM7496** (DIP16) that is fried (obsolete), and i need compatible replacement datasheet says 5-Bit shift r...

10 comments posted 18yrs

posted by some

10 comments posted 18yrs posted by some

how to id transformers ?

i have a couple of mystery transformer pulls {microwave, vcr, clock radio, etc} i try to google codes on trans with no...

7 comments posted 18yrs

posted by some

7 comments posted 18yrs posted by some

"Jellybean" LDO

What are people's favorite low-dropout linear regulators? ("Jellybean" in the sense of The Art of Electronics -- the one...

5 comments posted 18yrs

posted by look

5 comments posted 18yrs posted by look

Bluetooth serial adapters.

Slightly off-topic, but it's a question people here might know better than anyone on the planet. I'm after a Class 1, b...

4 comments posted 18yrs

posted by no-one

4 comments posted 18yrs posted by no-one

Datasheet for M67209 Hybrid Switching Supply Controller

I'm looking for a datasheet for a Zebra M67209 Switching Power Supply Controller hybrid circuit. Can anyone point me to...

3 comments posted 18yrs

posted by NOSPAM

3 comments posted 18yrs posted by NOSPAM

SnAgCu lead-free solder

Who sells SnAgCu solder, preferably small diameter with no-clean flux, in packages smaller than a 1-pound roll? Anyone?...

3 comments posted 18yrs

posted by look

3 comments posted 18yrs posted by look

12 volt automotive fan speed controller

hi, i am after a basic type schematic to controll the speed of a 12 volt dc automotive cabin fan . seems to be a bit of...

3 comments posted 18yrs

posted by krawczuk

3 comments posted 18yrs posted by krawczuk

I am looking for RFID suppliers that integrate inlay with hologram stickers

Does anyone knows companies that can provide a complete final product that includes the RFID inlay and the 2D/3D colore...

0 comments posted 18yrs

posted by sylnor5

0 comments posted 18yrs posted by sylnor5

LV instrumentation amp with decent CM input range?

I'm looking for an instrumentation amp to be run on a lithium battery (3V). I need low power consumption and a common-m...

4 comments posted 18yrs

posted by fpm

4 comments posted 18yrs posted by fpm

Rental agreements

When renting stuff like scopes and other big items, who pays for shipping when renting's over? I've had both possibiliti...

0 comments posted 18yrs

posted by a7yvm109gf5d1

0 comments posted 18yrs posted by a7yvm109gf5d1

Component suggestion...

Hi, I'm trying to build a handheld gaming device using a PIC16F887 with an LCD screen. Although the PIC will run at low...

4 comments posted 18yrs

posted by garethrichardadams

4 comments posted 18yrs posted by garethrichardadams

Replacement for BCX42 PNP transitor? FMMT55???

I am looking for replacement for an BCX42 PNP transistor that got damaged in an LCD inverter. The FMMT555A in mouser.co...

2 comments posted 18yrs

posted by saturnlee

2 comments posted 18yrs posted by saturnlee

Are video amps fizzling away?

Most of us know the old uA733, it's still sold but the quantities aren't very encouraging. A whopping 34 pieces at Digi...

2 comments posted 18yrs

posted by notthisjoergsch

2 comments posted 18yrs posted by notthisjoergsch

Potentiometer Markings

I am having the hardest time finding out the specs on a set of potentiometers that I got somehow. Basically I just need...

4 comments posted 18yrs

posted by thompsonk87

4 comments posted 18yrs posted by thompsonk87