Dynaco ST70 Distortion.

[PE9ZZ]

Get a scope. Serious work like this needs serious tools. It'll be an eye opener.

 

[rudes]

First I would like to thank those of you that responded! This was one of those things where you know something should work but it doesn't. Well I purchased my input board blank and stuffed it myself. I decided to check the components to make sure the right values were installed, and then I noticed it. I never installed the 47K resistor on the left or right side located in front of the 7199 socket. I just soldered it in and the amp works great. Thanks again guys!

 

[airtime]

First I would like to thank those of you that responded! This was one of those things where you know something should work but it doesn't. Well I purchased my input board blank and stuffed it myself. I decided to check the components to make sure the right values were installed, and then I noticed it. I never installed the 47K resistor on the left or right side located in front of the 7199 socket. I just soldered it in and the amp works great. Thanks again guys!

EXCELLENT!!!!!!!!!! Good work now enjoy

 

[gadget73]

that'll do it. Thats the cathode resistor for the phase inverter, and it will not function without it. unless its the plate resistor, in which case it will still not operate without it.

 

[Blackdog61]

I struggled with mine due to careless mistakes but with the new Dynakit 7199 board, etc you should be able to enjoy it for many years. Just enjoy it.