No wonder. Its low-power predecessor on the KP903 has the same spectrum. The first gain cascade, is assembled in a linear fashion, and importantly, on the p-channel JFET.
p-channel JFET more linear than n-channel
This is especially necessary in the cascade of voltage gain.
504HT operates on a triode section of characteristic.Which can be changed by a constant gate voltage - source, when needed.
Still very well rescues a wonderful second stage, driver.
This is currently the third, independent confirmation of this spectrum.
Version for silicon carbides JFET.
In all versions, it is important to check the initial current of the VT1-12 transistors.
Because according to the old passport data, the characteristics are not what those of modern manufacturers.
The version is designed for layout. Because I'm still unfamiliar with powerful SI-C JFET
In all versions, it is important to check the initial current of the VT1-12 transistors.
Because according to the old passport data, the characteristics are not what those of modern manufacturers.
The version is designed for layout. Because I'm still unfamiliar with powerful SI-C JFET
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hi and thanks
where do you found genuine 2sj103 and 2sk246 ?
I have some Y and GR but not BL
VT5, VT6 must have a leakage current: 8-10 mA. Then the voltage at the drain- source VT3, VT4 will be 3-3.2 V.
2SJ103BL: 6-14 mA.😉
Long time ago purchased. For the "Breeze" Amplifier.
Breeze amplifier.
BF245 tried, but didn't like it. Because they were burned out.
PCB manufacturing can be ordered here:
JFET-only Circlotrons without negative feedback. - Share Project - PCBWay
JFET-only Circlotrons without negative feedback. - Share Project - PCBWay
