It would work. It's just that the 2X18 secondaries are at a sweet spot for a lot of the projects around here, with regards to bias current / device dissipation and how the OS is setup. I tend to use the same power supply for many different projects. My own monoblocks have the 4220's (w/ active rectification) and sometimes I run into situations where the slightly "too high" rail voltage prevents me from cranking the bias current where I really want to run it. We dare not push a single device (TO-247) above 50W of dissipation if we're wise. Even then, you better have an ample HS / mounting solution, and know what you're doing with that game (maybe someday I will.. 🙂 )
Last edited:
Me? I would go with IR/Infineon If I couldn't get Nelson's kit.Oh yes. The Harris thing.
Without opening that whole thing again too far, are the Vishay/Siliconix devices the same as IR/Infineon? DigiKey has both.
Is the store going to get "pocket fisherman"? Or at least include the "worlds smallest juicer"? I missed out on original offer back then!
I did another search of this forum on the sourcing question, and someone pointed out that Siliconix might have second sourced the part (way back when) which may have been closer to the IR parts than the Harris version. But it's still unclear to me whether Vishay is using the Siliconix or Harris process, both companies having been absorbed there. "Siliconix" appears on the Vishay DS, but ¯\(ツ)/¯.Me? I would go with IR/Infineon If I couldn't get Nelson's kit.
I agree that any distinction is not worth stressing out over. It's just another detail hobbyists (or greedyboyz) like to obsess about.
Didn't even notice, I was so excited. Probably couldn't have matched it that well if I tried LOLAwww, and you have a towel to match the kit!
After seen the post, drove to the 📪. No joy only bills!
Antek Transformers - in no particular order, for a stereo amp, buy whatever is in stock of AS-3218, AS-4220, AS-3220, AS-4218. Any of these is more than big enough for F5m and other projects, and will work perfectly with the supplied components.
🙂
🙂
Thank you! Just ordered the AS-4218. Two left in stock on the Antek Website.Antek Transformers - in no particular order, for a stereo amp, buy whatever is in stock of AS-3218, AS-4220, AS-3220, AS-4218. Any of these is more than big enough for F5m and other projects, and will work perfectly with the supplied components.
My main concern was that it wouldn't work with the supplied components. Picked AS-4218 because it has 18v, based on what was mentioned in post #541
-Jose
What thermal pads come with the completion kit? Not red/pink, so presumably not Keratherm. I curious in case thermal paste will be needed and just general awareness of options other than the "gold standard", but expensive Kerafol 86/82 0.25mm pads in the store.Coming along nicely…
Coming along nicely…
well, I knew it
Papamp is always having priority to ZMamp (waiting in drawer)
How's that?


I have looked thru the threads and the original articles but have not found the specs. for the output wattage of this amplifier. If someone could mention it, I would appreciate it.
Attachments
- Home
- Amplifiers
- Pass Labs
- F5m kit