Electronic Components

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Programming Atmel IC's?

What's the bare minimum of stuff needed to program existing code onto an Atmel AT89C2051-24PU IC? One of the filenames...
12 comments posted 16yrs
posted by no-one
12 comments posted 16yrs posted by no-one

Looking fo Hitachi hybrid module

Does any one know where to find the Hitachi hybrid circuit PF0310A, which is the RF power driver for the Yaesu FT-847 t...
0 comments posted 16yrs
posted by vernucci
0 comments posted 16yrs posted by vernucci

Use SCR as rectifier

To use an SCR as a rectifier can you just tie the gate to the anode or should you use a diode to prevent reverse curren...
7 comments posted 16yrs
posted by regor
7 comments posted 16yrs posted by regor

What's this old cerdip chip?

Wondering what this 14 pin cerdip chip is, markings: | 1 1124 1155B | | 0 F 7331 < | 4 | The '104' text baseline is rot...
10 comments posted 16yrs
posted by omg
10 comments posted 16yrs posted by omg

LCD interchageability between brands etc.

was wanting to know if the there is enough similarity between laptops brands and displays that they can be wired to wor...
2 comments posted 16yrs
posted by divx.dude
2 comments posted 16yrs posted by divx.dude

Help identifying components

Black diode, smaller than 1Nxxx, green band and green test: "R47". Glass diode with yellow band. No other markings. Than...
24 comments posted 16yrs
posted by invalid
24 comments posted 16yrs posted by invalid

Memory backup batteries

I have various bits of 20-year-old equipment with memory backup batteries. These are all NiCd, and are quite capable of...
4 comments posted 16yrs
posted by theom+news
4 comments posted 16yrs posted by theom+news

Exceeding maximum absolute voltage

By how much can the maximum absolute voltage of 2.3V for DDR2 DRAM chips be exceeded? I don't intend to do it, but I ha...
15 comments posted 16yrs
posted by larrymoencurly
15 comments posted 16yrs posted by larrymoencurly

Looking for a the following items

CTS256 - text to speech convertor from somewhere 1982 Sinclair MK14 (eighties) Sinclair ZX80 (eighties) Sinclair MDA mo...
3 comments posted 16yrs
posted by georgedb
3 comments posted 16yrs posted by georgedb

PCB layout software

What is a good reliable PCB layout software, open source or freeware, if not the best, that is available? last posting...
0 comments posted 16yrs
posted by adamsmith
0 comments posted 16yrs posted by adamsmith

Detectable Ballast Interference

Sorry for the Xpost. There is an ongoing argument about ballasts giving off detectable interference. https://www.icmag....
29 comments posted 16yrs
posted by rmcg
29 comments posted 16yrs posted by rmcg

converting a pcb to schematic.

I have 2 small pcbs about 3inches by 2 inches. One had 3 op amps and the other has 3 ic, and several transistors along...
6 comments posted 16yrs
posted by radium1212_at_gmail_dot_com
6 comments posted 16yrs posted by radium1212_at_gmail_dot_com

Nice "build -in" AC meter

Could cost a bit less. Could be stocked a bit better than they are. Could have a faster lead time for restocking, given...
0 comments posted 16yrs
posted by MyNameForward
0 comments posted 16yrs posted by MyNameForward