www.megadrum.info

It is possible to use other components that a lot of diodes !
It is easier to weld, smaller and less expensive than a lot of diodes !

This device consists of a 16-bit high-speed Schottky diode array suitable for clamping to VCC and GND.
A chip contains 32 Schottky diodes !

Datasheet of 74s1053 :
http://focus.ti.com/lit/ds/symlink/sn74s1053.pdf
http://focus.ti.com/lit/ds/symlink/sn74s1051.pdf

Available on Mouser (for example) :
http://www.mouser.com/search/ProductDetail.aspx?R=SN74S1053Nvirtualkey59500000virtualkey595-SN74S1053N

This is what I was looking for but couldn't find! If I knew about it before I wouldn't bother with all those bat85's:) When I have time I'll try to make a PCB design using this diodes array.

It's also available at Farnell:
http://uk.farnell.com/jsp/Semiconductor ... ku=1163659
http://uk.farnell.com/jsp/Semiconductor ... ku=1490709

Something like that ...

< old schematic >

Or more like that ...

< old schematic >

dmitri wrote:It's also available at Farnell:
http://uk.farnell.com/jsp/Semiconductor ... ku=1163659
http://uk.farnell.com/jsp/Semiconductor ... ku=1490709

There is a slight problem with the availability from Farnell. These are US stock and incur £16 delivery surcharge to the UK:(

dmitri wrote:

dmitri wrote:It's also available at Farnell:
http://uk.farnell.com/jsp/Semiconductor ... ku=1163659
http://uk.farnell.com/jsp/Semiconductor ... ku=1490709

There is a slight problem with the availability from Farnell. These are US stock and incur £16 delivery surcharge to the UK:(

I will soon receive mine.
I can allocate 2 for you, if you wish, graciously

You ordered them with such a high surcharge? Or were they just a part of a bigger order?

dmitri wrote:You ordered them with such a high surcharge? Or were they just a part of a bigger order?

I ordered 10 items, and I need only 2 ...

Here is my new 32 inputs PCB !!!

< old schematic >