Hi there,

Here is my limited understanding. I'm sure someone will correct me if I'm wrong. If this is stuff that you already know, just ignore me. :)

What you are measuring when you measure a diode is the forward voltage drop, in volts, from anode to cathode. The cathode is usually the end with the stripe (except on some Russian germanium diodes I have!). So you have one diode with a forward voltage drop that is 0.26 volts and another that is 0.32 volts.

The forward voltage drop is kind of a...

Hi all...

Ive got an unregulated Boss PS-120 power supply that i'm trying to regulate to put out something close to 9V. Should I not be able to do this by just putting a 9.1V zener between the V+ and ground? It seems to be the way that one would do it, but im not getting any results on the breadboard.

I've salvaging varous parts from broken electronics problems for modifying my DS-1 and SD-1, resistors, capacitors, opamps (found four JRC4558DDs) etc, since it's cheaper than going to radio shack and faster than ordering online. I've been collecting various diodes to try to see what kinds of flavors of clipping I can get, and which ones I like. I've collected some 1N4148s, various rectifier diodes (1N4004s and 7s) some fast recovery rectifier diodes (FR107s), some zenners (somewhere...) and...

I am hunting parts for my Analogman King of tone clone and found blue band diodes in an old (maybe eighties) Panasonic Video Multiplex Encoder Unit. But when looking at the colour, it is more of an light blue/almost grey type...in comparson i also removed an dark blue diode from an old multimeter. So which one is the 1S1588? Thanks for your help!

Right, so i'm about to embark on the mother of all salvage fuzz projects... A green russian BMP

In Russia, pedal salvages you...

Only thing i have left to find is the diodes. I have 1 x 1N4148, but i need 4. I have 14 mystery diodes sitting here. Is there any way i can identify them, or, if it doesn't really matter what diodes i use, could i use LED's?

hi,

ive built this lfo

i get between 0 - 5 volts at the output which i use to turn an led on and off.

any ideas how could i change this so i get 2 - 5 volts on the output?

thanks

So when choosing clipping diodes, what values on the datasheet are the one sto be looking at? Forward / Reverse voltages?

It is in a Zenith FM tuner that i took apart a while back. I am looking to use the PT from it for a tube preamp, and trying to figure what the PT's ratings are roughly, B+ wise.

What kind of diode is this? Can i assume that it has the same voltage drop characteristics as a more normal silicon setup like with 1N4001s/1N4007s?

Any information would be appreciated.

Thanks!

-chris

Hey guys,

Do any LED's exist out there that have a 9V forward voltage?

anyone have a mouser part number?

should I just forget it and do the resistor in series?

thanks

I'm building the 2 microamp board at tonepad, and i want to turn microamp 1 into a distortion by adding clipping diodes, then use #2 as a switchable boost on the output. i have a question about diode placement, though.

here is the tonepad layout:

So, i just want to make sure that i am placing them correctly. if i read the schem right, then i would need to place opposing diodes to ground from the positive side of the 15uF electro on the output. is this correct? i'm operating on the...