With out an OPS is there any definitive way to test a CFA ips? Maybe a single output pair setup just came to mind. Just for grins.
If anything , my IPS's will perform better than simulated.
5th elements "wolverine" real world testing proved this.
PS - I actually "cripple" my sim's to assure this is true. (no ideal
current sources/Voltage sources - run the real simulated EF3 @ 4R).
OS
Anybody ever considered that the actual build, grounding, PSU and component selection has a much greater impact on performance than the actual circuit itself..??
I did. That's why I'm not posting any observations until power supply and protection boards are built and put in a chassis. I think a good design will be more immune to chassis layout too. I plan to experiment with that too.
Happy headphones ...
Class A 24V circuit (below).
I use this to test a IPS in isolation @ 5ma VAS I.
ALL present IPS's are 5-10ppm.
Kypton C/V are parts per billion. (in class A).
And yes , power supplies + layout are BIG factors. 😱
Edit , member 5th element did not get his 5ppm UNTIL he moved some wires.
OS
Class A 24V circuit (below).
I use this to test a IPS in isolation @ 5ma VAS I.
ALL present IPS's are 5-10ppm.
Kypton C/V are parts per billion. (in class A).
And yes , power supplies + layout are BIG factors. 😱
Edit , member 5th element did not get his 5ppm UNTIL he moved some wires.
OS
Attachments
Do you have a layout for that? I would like to build one. I have some Sony MDR-7506 headphones. I wouldn't mind giving those a listen.
......have not laid out an "infant" slewmaster (headphone).
For 24V , all you would need to do is change any zener dropping resistor
to 1K on the IPS's. 24V-80V , these run the same ...
The kypton V/C IPS's are phenomenal in class A ! (below).
24R load -3w output. Cheap EF2 toshiba to-220 output stage .
OPS
For 24V , all you would need to do is change any zener dropping resistor
to 1K on the IPS's. 24V-80V , these run the same ...
The kypton V/C IPS's are phenomenal in class A ! (below).
24R load -3w output. Cheap EF2 toshiba to-220 output stage .
OPS
Attachments
Terry, I am impressed with your ability to build so quickly, and specially with your listening comparison of different amps, no big words and exaggerations, and you where in the music business if I understood you correctly.
If you are interested in excellent line and headphone amplifier maybe you can take a look this thread http://www.diyaudio.com/forums/solid-state/235695-no-nfb-line-amp-gainwire-mk2-53.html#post4088019 just read trough it and let me know.
regards Damir
This is my first simulation using tube.
The IPS is Kypton-V with tube LTP.
THD 20 is high and C miller is low than using BJT.
I sim as quick as posible, only to know the characteristics of tube.
The IPS is Kypton-V with tube LTP.
THD 20 is high and C miller is low than using BJT.
I sim as quick as posible, only to know the characteristics of tube.
Well if they are NON then here is what you are looking at.
New Black Gate Capacitor BG N 6 3V 470uF Nonpolar 4pcs F S | eBay
at 4 for stereo for 80 bucks "free Shipping" 😱
Use for C10, C11 polarized electrolytics, something like 470-1000uF/16V, bigger value is better. No need for nonpolars..
Hi Jeff,
I heard through the grapevine that you may be working on a layout for these two IPS. If so, are you going to do a singlesided version that we could etch?
Thanks, Terry
I heard through the grapevine that you may be working on a layout for these two IPS. If so, are you going to do a singlesided version that we could etch?
Thanks, Terry
I almost have a Kypton-C layout done but it's double sided. I'm going to send out for etching.
How about a Kypton HEC FET combo
I don't know what HEC is. Can you point me to a schematic?