Nothin ZM,
I heard a push-pull 845 11 years ago that was to die for.
Course back then using such high voltage was discouraged, at least for those of us who were not great DIYers.
I think these days, building a similiar creature would put me back some serious coin in iron. But I still think about it.
I heard a push-pull 845 11 years ago that was to die for.
Course back then using such high voltage was discouraged, at least for those of us who were not great DIYers.
I think these days, building a similiar creature would put me back some serious coin in iron. But I still think about it.
naah ....... that's just 1KV ; nutin' compared with usual 1.5KW FM x-miter , where 2.5KV are must ........
just put one hand behind back , when doing anything inside
seriously - toob amps have one good thing - output xformer ;
Papa's amps have another good "thing" - Papa himself
just put one hand behind back , when doing anything inside
seriously - toob amps have one good thing - output xformer ;
Papa's amps have another good "thing" - Papa himself
Nelson Pass said:
No. The mystery part is already discontinued. There are other, newer
parts being sampled...............
Did I mention that they are also extremely expensive?
Is the Mystery part, Lovoltech LU1014D?
So is the replacement part supose to be more superior compared to Lovoltech?
fff0 said:
Can be interesting. I cannot find any transconductance figure published in the datasheet. Reading the Id-Vgs graph, I might say that the transconductance at 3V Vgs is about 35 - which is high.
I believe the search of the device should focus on finding a "Flat" transconductance behavior vs Vgs around the bias point. In the current F2, it is about 2.5A Drain current. Then a high transconductance figure will help to minimize the Vgs swing, so hopefully bring more linearity to the system. Certainly if we can reduce the bias current without harm to the performance, I would love to - energy saving is certainly a good thing. A new device might provide a chance to look at the bias point again.
