About That Bias Point

Back in June, in the Competing Priorities post when talking about the 6AS7 SET, I made the following statement:

I also had another idea this morning which may lead to a little more prototyping work to check out a theory I have (another potential delay). But if the experiment turns out well, I may move bias points around a little on the 6AS7.

Well, I spent this morning with some prototype circuits and a stack of tubes investigating the bias points for the 6AS7 SET power stage. And I learned a couple of important lessons.

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Tags: 6080 6as7 prototype set 

No More Excuses

One simple sight that really gets me excited is to see that very heavy box sitting on the front porch. Today, the output transformers for the 6AS7 SET amp arrived from Edcor.

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Tags: 6080 6as7 edcor set 

New SET Coming

As I discussed in my last post, there is a new SET amplifier on the horizon. This SET will sit midway in power and performance between the little SETs (6CY7, 6CY7 V2, and the 6EM7) and the big 6336 SET Amplifier.

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Tags: 6080 6as7 set