Cetus- Zener diode substitution

[Synchrony Pedalworks]

I have a huge packet of zener diodes, but I failed to look and see if I have 2V7 diodes. Unfortunately, my pack doesn't have that value. In the Cetus, the 2V7 diodes are used in series with another valued Zener diode. I believe that they are being used as clippers. One is paired with a 3V6 and the other paired with 5V1. From what I briefly searched, it may be possible to use different values that add to a similar value of the sum of the original two diodes. The only difference is the forward voltage of the forward facing diode does enter the equation.

If I changed the value of the two diodes to equal the sum of the original schematic, would it alter the pedal significantly?

I may test the idea with the breadboard, but wanted to see if anyone had any other thoughts?

 

[Robert]

You can use multiple diodes (zener or otherwise) that add up to the required voltage tacked across the pair as long as:

1) You use a separate string of diodes for each polarity
2) At least one of the diodes in each series string must be non-zener (silicon, schottky, as long as it doesn't break down in reverse like a zener)


Or you can use the closest thing you have.... or I could just send you a couple 2.7V zeners....

 

[Synchrony Pedalworks]

You can use multiple diodes (zener or otherwise) that add up to the required voltage tacked across the pair as long as:

1) You use a separate string of diodes for each polarity
2) At least one of the diodes in each series string must be non-zener (silicon, schottky, as long as it doesn't break down in reverse like a zener)


Or you can use the closest thing you have.... or I could just send you a couple 2.7V zeners....

View attachment 110424

That is great info and offer. I have a ton of zener diodes, and enough options to add up to the required voltages. I can make this work. This info gets me going and helps a lot. Thanks!