Just for fun while I'm working up the other stuff, here's a true junk box quickie:
....
Here we go again with the unobtanium curcuits.
Is that an incandescent lamp??
two massive watts
Not, one,but two Massive watts
I just imagined a pair of bare Fane 15-300 tc drivers, with one of such amps clamped to the speaker basket (as a heatsink) , lightbulb on top of the speaker, and making music in the bedroom
Audio Showroom system with 1watt into 4 Ohm load mono block's.
Sadurni Acoustics Miracoli, Audience AV Cables, Wolf Audio, Veracity, Linear Tube Audio, New York Au
No surprise we speak about Mr Pass in this place
Review: Linear Tube Audio MicroZOTL2.0 | Part-Time Audiophile
Sadurni Acoustics Miracoli, Audience AV Cables, Wolf Audio, Veracity, Linear Tube Audio, New York Au
No surprise we speak about Mr Pass in this place
Review: Linear Tube Audio MicroZOTL2.0 | Part-Time Audiophile
I had a crazy thought.
Are there any SOT complementary jfet's in current production?
By my paper napkin calculations, you only need .35 Amps.
That would bring down the required number for a follower to ~ 144 per channel, assuming 10 mA Idss.
It might have a higher output Z on the order of 2 Ohms.
But it should have less capacitance to drive.
Might take it from unobtanium to doable.
Are there any SOT complementary jfet's in current production?
By my paper napkin calculations, you only need .35 Amps.
That would bring down the required number for a follower to ~ 144 per channel, assuming 10 mA Idss.
It might have a higher output Z on the order of 2 Ohms.
But it should have less capacitance to drive.
Might take it from unobtanium to doable.
@indra1
These are mostly just meditative exercises, like zen gardening.
Hi Mr Michael,
I'm must admit that i'm one of those greedy boys out there who just cant keep their mind off the 120v one in the long nights...
I have just one, i mean just one thing to ask please, as a meditative exercise or pure favour, as my sistem is only 95dB/channel (so not that much to get away with only 1 w), could you please modify the 120vcc version (keep the 120vcc psu) from 1w to somewhere near 5-6w (i wouldnt mind a bit of complexity if it is the case and keep that pure second harmonic signature)?
I would be very gratefull for that, and i think that all of us would be.
Thanks in advance
Sergiu
Ps: can you suggest a more obtainable output part in the same configuration from mouser would be best for everyone i think.
> from 1w to somewhere near 5-6w
Wrong thread. This is all about 1W.
But the easiest way to increase power without major change is to go to balanced version.
Something like :
ecp audio diy: The Caged Frog II-- A Pentode Based Differential Transconductance Amplifier for Headphones
Patrick
Wrong thread. This is all about 1W.
But the easiest way to increase power without major change is to go to balanced version.
Something like :
ecp audio diy: The Caged Frog II-- A Pentode Based Differential Transconductance Amplifier for Headphones
Patrick
I believe post 159 and 110 are regarding the 120V version.
How about trying these power FET with schematic from post #92 or #116 ?
Any issue with these 2 schematics ?
too bad i have just received the lovotech Fets for this FAOW project.
so no issues for these babies except ZV9 or F3 ?
too bad i have just received the lovotech Fets for this FAOW project.
so no issues for these babies except ZV9 or F3 ?
I’ll try the 1W amp from Juma on post #92 before giving up with these babies I also just received.
You can always use the triode cell (100~200mA) in the DAO headphone amp to replace the MOSFET and source resistor in the 120V version with transformer.
Bias will increase, so will the heat.
But best is still to add a pair of 2SK170BL as follower at the input.
Just adds complication.
And still needs matching.
Patrick
Bias will increase, so will the heat.
But best is still to add a pair of 2SK170BL as follower at the input.
Just adds complication.
And still needs matching.
Patrick
The Lovoltech FAOW could be made to work, but not without adding complexity, which ran counter to the exercise, so I let it go. I'd just build a ZV8 or wait for ZM's project.
want a big challenge ?
l'amp with a 2SK60 instead of the 2SK82