Favorite Russian D9# diodes

[CheapSuitG]

Better than dropping them LSD bag and testing?

So you'll have to take these with a grain (or more) of salt. I did a stupid and dumped my pre-sorted D9Ds into the same ESD bag

 

[Ginsly]

I always like to remind people who are testing these with a TC-1 type thing or even a DCA55 -They'll show a much higher Vf than you expect due to testing conditions. Let's say you pick up some Ge diodes that are typically ~.30Vf; if you test with a TC-1, LCR-P1, or the Peak 55, the Vf may be closer to what you expect of a silicon diode. If you test it with pretty much any multimeter it'll show the lower, "expected" Vf reading due to different testing conditions. The DCA75 is cool since you're able to graph it and see what's goin' on! I'll upgrade from the 55 someday.

When using them for hard clipping I've found Schottky diodes to be virtually indistinguishable if the Vf is roughly the same. I usually stick with boring old Si in most situations though!

 

[jessenator]

Better than dropping them LSD bag and testing?

If I had, I could have just held each diode in the palm of my hand, sketched out the curves perfectly, then thanked each one: спасибо, товарищ диод

 

[CheapSuitG]

So long, спасибо. I bid you farewell and safe travels!

 

[jessenator]

I bet this took a minute to graph all these with the peak...

There are worse ways to spend one's time

 

[mckillacuddy]

The chart

View attachment 126525

It can be very confusing, since there are 2- and 3-band versions. For those who don't read cyrillic and just have a bag marked in latin characters, from top to bottom D9…:
B
V
G
D
E
Z/Zh
I/Y
K
L
M

Aha! Apparently I favor the B. One orange dot. I've become pretty precious with my last several pairs.

 

[zeropluszero]

Is the jist of that that basically there's not a huge difference between any of them?