Looks good! Will sound good, too.
It's all about cooperative stealing here 🙂
It's all about cooperative stealing here 🙂
Yeah I lack imagination of what can be done, so contributions like yours make my brain work a little harder 🙂 But I am getting better at it, that's for sure...
And those copper wires make this IV look a little steampunkish... 🙂
And those copper wires make this IV look a little steampunkish... 🙂
Your CM I/V boards look real good Ripster!
I think I saw this version before, HAHAHA!
Great work fellas, so many "Toys" to play with in this thread.
Patrick, I'm looking forward to see more updates on your all-FET, zero-global-feedback IV converter.
I think I saw this version before, HAHAHA!
Great work fellas, so many "Toys" to play with in this thread.
Patrick, I'm looking forward to see more updates on your all-FET, zero-global-feedback IV converter.
Guys have you noticed difference between Jfet good current noise behavior VS Bjt good voltage noise in your discrete pcbs tries, please ?
Would like to know to choose either one or else VS all what I tried already. At least what you prefered with ears on music material between the two discrete sorts. Tube I/V is also gently comming thanks the help of several people 😉 🙂
Would like to know to choose either one or else VS all what I tried already. At least what you prefered with ears on music material between the two discrete sorts. Tube I/V is also gently comming thanks the help of several people 😉 🙂
Built a special test fixture to measure the new SFC CEN IV.
Very happy with the results. All work first time.
Without any trimming, DC offset was already ~10mV.
After trimming, it drops to 0.4mV +/-0.5mV after 3 minutes.
Start up was 13mV, but already dropped to ~2mV after 30s.
Perfect triangular and square waves.
Frequency response as expected.
This has built-in Sallen Key, so 3rd order drop.
So shall built 2nd channel and then send them off to Ireland for independent auditioning.
Lucky guy.
😉
Patrick
.
Very happy with the results. All work first time.
Without any trimming, DC offset was already ~10mV.
After trimming, it drops to 0.4mV +/-0.5mV after 3 minutes.
Start up was 13mV, but already dropped to ~2mV after 30s.
Perfect triangular and square waves.
Frequency response as expected.
This has built-in Sallen Key, so 3rd order drop.
So shall built 2nd channel and then send them off to Ireland for independent auditioning.
Lucky guy.
😉
Patrick
.
Attachments
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Nice work Patrick. Look forward to hearing about the comparison to your other IV. I really like that one, prefer it to the D1 I just built.
Hi, maybe you can help, i can't find it (Vunce offered Gerber on this thread to convert dual soic towards single channel dip8), i want to try dual channel op.
Thanks,
Evaldas
Built a special test fixture to measure the new SFC CEN IV.
Very happy with the results. All work first time.
Without any trimming, DC offset was already ~10mV.
After trimming, it drops to 0.4mV +/-0.5mV after 3 minutes.
Start up was 13mV, but already dropped to ~2mV after 30s.
Perfect triangular and square waves.
Frequency response as expected.
This has built-in Sallen Key, so 3rd order drop.
So shall built 2nd channel and then send them off to Ireland for independent auditioning.
Lucky guy.
😉
Patrick
.
I'll be cracking the whip for the auditions!Hello
I am preparing to build an AD1862 DAC. I'm preparing PSU 2, but I can't find a Low ESR capacitor. Do you have any recommendations for substitutes?
I need to settle down and just listen for a few days … first thing I noticed is the sound stage has improved.
PSU 1, LM 6171 , jlsounds, late 2012 Mac mini using jRiver player
Impressions to come
And thanks to those watching over me:
Miro, asilker and paddy and so many folks who I will never meet except of course online in this forum
Thanks everyone!
Must listen now…
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For those positions Panasonic EEU-FM and EEU-FS would be fine subs, and some values in stock at Mouser; also don't ignore the very nice ChemiCon EKZ series.
Be careful with lead spacing and diameter; the PSU2 board is densely packed.
Have fun!