Don't count on that too much, number isn't stratospheric
first need to sort them , to see what I have and what is outcome of differences between them in different circuits
I got practically what's enough to justify dedicated construction efforts
As I said , if I have a word from Pras about any substantial quality, I'll share that
first need to sort them , to see what I have and what is outcome of differences between them in different circuits
I got practically what's enough to justify dedicated construction efforts
As I said , if I have a word from Pras about any substantial quality, I'll share that
Hi
Seems like I’m late to the party once again...lol
Is there already an existing power amplifier design for these output devices.
Are the ones mentioned below the real thing?
https://www.transistormosfet.com/transistor?search=2SK2087C
Thanks
Eric
Seems like I’m late to the party once again...lol
Is there already an existing power amplifier design for these output devices.
Are the ones mentioned below the real thing?
https://www.transistormosfet.com/transistor?search=2SK2087C
Thanks
Eric
again, number I have is not worth calling "many" in any meaning
as personal favor from Yoshida - San, that is enormous, and that was main reason why I publicly did show my gratitude
as personal favor from Yoshida - San, that is enormous, and that was main reason why I publicly did show my gratitude
yeah, even those "just four" are mountain of counter-favor I feel bound to climb
though, I feel from loooong ago that you can call me Duffy
though, I feel from loooong ago that you can call me Duffy
Hi
I’ve never heard a SIT/VFET amp simply because the output devices are way too expensive for my taste and budget...these ones at least are affordable but of course now they are all gone..
BR,
Eric
It's supply and demand, and market forces at work.
One consolation is that there are still other SITs available at a price that is high, but still competitive with power triodes (45, 2A3, 300B, 211, 845 etc). And SITs don't wear out, whereas tubes have a limited operating life. Wait another year or so and perhaps there may not be any SITs left at any price (well, perhaps available from hoarders at very high prices).
Another consideration is that the output device (SIT) is only part of the cost of an amplifier. The majority of the cost is in the power supply, heatsink, and case.
One consolation is that there are still other SITs available at a price that is high, but still competitive with power triodes (45, 2A3, 300B, 211, 845 etc). And SITs don't wear out, whereas tubes have a limited operating life. Wait another year or so and perhaps there may not be any SITs left at any price (well, perhaps available from hoarders at very high prices).
Another consideration is that the output device (SIT) is only part of the cost of an amplifier. The majority of the cost is in the power supply, heatsink, and case.
good amp is good amp ..... whatever it is made of
there are zillion bad amps around, some of them even costing double dearly, made of most expensive parts
there are zillion bad amps around, some of them even costing double dearly, made of most expensive parts
You could argue that an SIT is better than a power triode. Low-ish output impedance which means that you do not require an audio output transformer. You can make push-pull DC-coupled output stages with SITs.