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DIY Stompboxes => Building your own stompbox => Topic started by: Steben on October 23, 2020, 12:50:50 PM

Title: Diode I/V comparison graph
Post by: Steben on October 23, 2020, 12:50:50 PM
(https://therepaircafe.files.wordpress.com/2019/10/ihz3udv.png)

You guys have seen this?
Little detail : BS170 body diode almost exactly the same as 1N4148, 2N7000 body diode steeper!
Title: Re: Diode I/V comparison graph
Post by: garcho on October 23, 2020, 06:05:22 PM
that's how you can hack a diode as a variable resistor, in a really quick and dirty kind of way, say for an active filter
Title: Re: Diode I/V comparison graph
Post by: phasetrans on October 24, 2020, 09:50:56 AM
Too bad this doesn't go down another couple decades, or give the reverse of the zener. Very cool data.
Title: Re: Diode I/V comparison graph
Post by: iainpunk on October 24, 2020, 11:02:47 AM
nice graph, i wish i had it soner

only downside that its sometimes hard to see which diode goes with which colour, like the IRL510 and the LED R rectangular are kind of the same colour.

very much thanks,
iain
Title: Re: Diode I/V comparison graph
Post by: ThermionicScott on October 24, 2020, 02:17:40 PM
Quote from: iainpunk on October 24, 2020, 11:02:47 AM
nice graph, i wish i had it soner

only downside that its sometimes hard to see which diode goes with which colour, like the IRL510 and the LED R rectangular are kind of the same colour.

very much thanks,
iain

It took me a bit to figure out the scheme, but I believe the diodes are sorted by where their line starts at zero current, and then listed from left to right at the bottom.

Nice work, Steben!
Title: Re: Diode I/V comparison graph
Post by: Steben on October 25, 2020, 04:44:49 AM
Quote from: ThermionicScott on October 24, 2020, 02:17:40 PM
Quote from: iainpunk on October 24, 2020, 11:02:47 AM
nice graph, i wish i had it soner

only downside that its sometimes hard to see which diode goes with which colour, like the IRL510 and the LED R rectangular are kind of the same colour.

very much thanks,
iain

It took me a bit to figure out the scheme, but I believe the diodes are sorted by where their line starts at zero current, and then listed from left to right at the bottom.

Nice work, Steben!

Its not my work, I stumbled on it and thought it would be a crime not to share.
Title: Re: Diode I/V comparison graph
Post by: iainpunk on October 25, 2020, 08:23:52 AM
Quote from: Steben on October 25, 2020, 04:44:49 AM
Quote from: ThermionicScott on October 24, 2020, 02:17:40 PM
Quote from: iainpunk on October 24, 2020, 11:02:47 AM
nice graph, i wish i had it soner

only downside that its sometimes hard to see which diode goes with which colour, like the IRL510 and the LED R rectangular are kind of the same colour.

very much thanks,
iain

It took me a bit to figure out the scheme, but I believe the diodes are sorted by where their line starts at zero current, and then listed from left to right at the bottom.

Nice work, Steben!

Its not my work, I stumbled on it and thought it would be a crime not to share.

alsnog handig om te hebben,

groetjes, Iain
Title: Re: Diode I/V comparison graph
Post by: Steben on October 25, 2020, 09:36:19 AM
Quote from: iainpunk on October 25, 2020, 08:23:52 AM
Quote from: Steben on October 25, 2020, 04:44:49 AM
Quote from: ThermionicScott on October 24, 2020, 02:17:40 PM
Quote from: iainpunk on October 24, 2020, 11:02:47 AM
nice graph, i wish i had it soner

only downside that its sometimes hard to see which diode goes with which colour, like the IRL510 and the LED R rectangular are kind of the same colour.

very much thanks,
iain

It took me a bit to figure out the scheme, but I believe the diodes are sorted by where their line starts at zero current, and then listed from left to right at the bottom.

Nice work, Steben!

Its not my work, I stumbled on it and thought it would be a crime not to share.

alsnog handig om te hebben,

groetjes, Iain

;)