13700 Noisegate/Expander

[disabled_shredder]

Hey so I have built the gate only using a 1k for r27 the status led and a tl071 and 2n5088/87 in place of stock transistors q1 is getting to hot to touch I am getting no effected signal but I am getting signal in bypass mode! I do not know what the voltages should be but will measure them and post. Also there are absolutely no solder joints I have checks dozens of times. Does anyone have any idea?

[armdnrdy]

You did check the pin out of the 5088/87 right?

They should be facing the opposite way than the BC550s are depicted on the layout.

[VahiD]

hi , how can change the decay ? i want faster decay plz help

[Mark Hammer]

It's going to be either R22 or R17.  I don't know which.

[VahiD]

tnx its r17
lower resistor = faster decay

[VahiD]

what about other mods ? can anyone help ?

[VahiD]

why my clean signal change a bit with this pedal ? i have a bit of noise or gain or someting like this in my clean signal and TR1 is not working plz help tnx

[VahiD]

nobody can tell me why my signal is change ? if you can plz help me
Tnx all

[POTL]

Hello I came across this project on madbean's website
Someone compared this loudspeaker with ISP Decimator
Or is there nothing better ISP?

[armdnrdy]

I received a private message for the project file link that was deleted by dropbox.

As requested:

https://www.dropbox.com/s/9eej1fsdldfs7ct/Noise%20Gate%20-%20Expander%20build%20PDF.pdf?dl=0

[rankot]

Anybody have an idea how to add attack pot to this gate?

[jhergonz]

a noob question, will the sound entering the LM13700 clip if the signal is too hot, for example, the sound coming from a Active pickups or clean boost.

I know it is recommended to put everything after this Gate, but just, what if?

[StephenGiles]

On 9v most probably but much less so using a dual + & -15v supply.