How iss your mirrors suppose to work? Ube driver + Ube vas is abt 1,2V that means the input mirror transistors have abt 1.2V Uce? Id love to see real transistors be linear with Uce below 1.5V.
How do you take care of Vas driver bias ? Taken care of by ?? and variations in hfe?
I wil give you a symmetric that have been up in the forum before.
You need a coltroll for your Vas current in dc is stable with variations. Hence you can use your input current bias to control Vas.
How do you take care of Vas driver bias ? Taken care of by ?? and variations in hfe?
I wil give you a symmetric that have been up in the forum before.
You need a coltroll for your Vas current in dc is stable with variations. Hence you can use your input current bias to control Vas.
Thanks R Dijk,
There are two vbe multipliers in the voltage stage. All the transistors in this stage will have to be on the main heat sink
kind regards
Harrison.
Perfection is sometimes deceitfully simple looking or plain that one may over look it. We yet have much to re learn, un learn and learn. When one man learns, all men learn.
The amp still looks like a boring amplifier. Perhaps 'boring' is the wrong word - I often see blameless.
Indeed 🤓, the key word is looks! you'll finally come around
For the blameless part. This isn't a blameless amplifier clone. I had a talk a year back with Douglas Self during its development. No this isn't the blameless amplifier.
Several owners reported issues , resulting in changes to the design, please note and effect the necessary changes on the existing PCBs
