[56] Delay pedal (prototype)

Date: November 13th, 2007 | Comments : [4] | Categories: DIY.

Amz delay pedal

Delay pedal (prototype)

Yes, I occasionally design and build pedals other than boosters or distortions!    

This is a prototype digital delay using an HT8955 chip and an jfet audio path to get more of a warm analog sound. As I remember, it has about 800ms of delay.

There are two of these pedals completed… I have one and Robert Keeley has the other. There are several more in various stages of construction around my lab…


4 Responses to “Delay pedal (prototype)”

[268] Donald Says: 4:25 pm, January 4th, 2008

I want to build my own delay pedal. I work at Radio Shack and have access to many parts so now I have the bug to build my own pedals. Any diagrams you can share would be great but I need to learn to read them.

[407] David Says: 2:27 pm, April 14th, 2008

Please where I can buy the holtek HT8955A chips
I am looking all orund world i konw they are discntinued from holtek but in china there are.

I also hawe some delay shc with same ic and aldso bulding other Delay, I built one with Analog input and out and adressing 4164 memory in paralel.

Regards David
from Croatia

[409] admin Says: 3:05 pm, April 14th, 2008

Small Bear Electronics still has some of these chips:




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