sub for 1n34a diode SOLVED

[guile]

Does anyone know where I can sub a 1n34a diode with? I ran out of them  

Let me know!
Thanks.

G♫S

Mystery solved: 1N60

[midwayfair]

Does anyone know where I can sub a 1n34a diode with? I ran out of them  

Let me know!
Thanks.

G♫S

Mystery solved: 1N60

Just some more info:

That 1N60 will work .... most of the time.

The Fv on a 1n60 (Germanium or modern silicon) is around .23-.27v. 1N34A will tend to clip around .33-.37v, which is actually a fairly high average for germanium diodes. This can be a pretty significant change in volume and level of distortion if you're using it as a distortion clipper, especially because the actual sound of a 1N60 (germanium) as a clipping diode tends to be dark even compared to other germanium diodes with similar clipping thresholds.

If all you care about is having a Fv between .2v and .4v, then there are a massive number of diodes that fit the bill: pretty much every Schotkey and Germanium diode you can lay your hands on will work. But there are some where the Fv even in a small range like that could be important.

For instance, a 1N60 is a better overall choice than a 1N34A for the diode in an Orange Squeezer because it's really really close in performance to a 1N100 (the diode in the original circuit). Hartman uses the silicon version, 1N60P, in their Compressor and that's a great orange squeezer derivative. I use the same diode all the time because it's 4c and works just as well as a germanium in most applications. You can even use it as a series diode for polarity protection. Plus the case is smaller and won't break like a glass germanium.

However, there are some effects, not just in distortion effects, where the Fv might be more critical. The performance of rectifier circuits like those found in some compressors can be adversely affected if you change the Fv of the diode used.

[guile]

Thanks!

I'm building an UPROAR. The diodes mentioned are for D1 - D4: http://www.madbeanpedals.com/projects/Uproar/docs/Uproar.pdf

Can you tell if these diodes are right?

[midwayfair]

Thanks!

I'm building an UPROAR. The diodes mentioned are for D1 - D4: http://www.madbeanpedals.com/projects/Uproar/docs/Uproar.pdf

Can you tell if these diodes are right?

They should be fine -- you'll get more distortion with the lower clipping threshold, but clipping dodes are almost never "wrong." Just "different." One thing I might do, however, is socket R13. If you find the germanium position to be a bit extreme, bumping up that resistor a little would give you the opportunity to tone it down some.

[TreeSlayer]

Does anyone know where I can sub a 1n34a diode with? I ran out of them  

Let me know!
Thanks.

G♫S

Mystery solved: 1N60

i have a boat load of 1n34a's. if you want a few, holler!

[guile]

Thanks!

I'm building an UPROAR. The diodes mentioned are for D1 - D4: http://www.madbeanpedals.com/projects/Uproar/docs/Uproar.pdf

Can you tell if these diodes are right?

They should be fine -- you'll get more distortion with the lower clipping threshold, but clipping dodes are almost never "wrong." Just "different." One thing I might do, however, is socket R13. If you find the germanium position to be a bit extreme, bumping up that resistor a little would give you the opportunity to tone it down some.

Thank you very much!