F5m kit

OK.... back from Saving The World ( dang it, it's cold in Ohio ). I was busy working, doing real things, you know?

So, I missed on getting the darn boards.... got the completion kit.

When will the boards be available again?

(Don't be telling me about using a portable device... I was stuck looking at Jet Engine Test Cells and their machineries... stuff that makes a pair of 5U amps definitely puny! 4G and 5G need not apply in the industrial World of Really Big, Loud Hardware that could fail spectacularly, catastrophically in a split second. I mean what's the point of a hard hat? What's the point of saving your brain if the rest of your body will be immolated in a split second? )

Anyhow, once again, in the caboose... hoping for boards.
 

Attachments

  • two weeks.jpg
    two weeks.jpg
    74.7 KB · Views: 74
  • Like
Reactions: DrDyna
Please let me know if what I am writing comes across as snarky or confrontational. It’s a 2 way medium with these forums so I can’t tell compared to a real live conversation like on Zoom or Facetime for example.
Anand,
So far this thread has been one of my favorites. People are discussing and asking questions. For me at least the mood has been all good and fun. Perhaps its all just the excitement of a new amp.

So to you and everyone who takes their time to answer my current dumb question, and to apologize for my future dumb questions, I thank you 🙏

Edit: i would like to point out that I am in a pretty damn good mood! I just finished the acp+ and I have to say I super happy with it so far. I am gearing up to build the ACA MINI. And right after that the F5M. Super excited for all of it. Also really looking forward to the f6m that papa is cooking. Zenductor might also be dropping soon, and the store bless their hearts might soon restock other goodies. This stuff is just plain fun and this year might just be an awesome year for DIY audio.
 
Last edited:
I'm building it differently this time (many ways to skin a cat, but good for the cat, too) by not the "bigger HS the better" approach by using back-to-back smaller HS with variable 24Vdc fan with thermister.
I'll just have to figure optimum component values to minimize noise, if not possible to eliminate. Or, wind separate AC secondary feeding 110Vac fan.
 
  • Like
Reactions: poseidonsvoice
I'm shocked and shamed at myself :h_ache:

- It turns out that the two output transistors face the opposite direction compared to the image I've had in my head all along!

Which means that I haven't grasped an iota of how the circuit actually works during all this time :headbash:

Once I've collected my thoughts again – I'll be back with some serious questions for someone to answer!!! 😡

(😉)
Stop banging yourself. Those who dare not ask questions, learn nothing. This forum is for everyone, there are no stupid questions. Plus, those who dare not ask, learn from those who do. Keep it up!
 
I'm building it differently this time (many ways to skin a cat, but good for the cat, too) by not the "bigger HS the better" approach by using back-to-back smaller HS with variable 24Vdc fan with thermister.
I'll just have to figure optimum component values to minimize noise, if not possible to eliminate. Or, wind separate AC secondary feeding 110Vac fan.

The Iron Law of going with fan cooling, use:

- Biggest possible fan.

- Lowest possible RPM.

…If you want the most Silent and still the most Effective cooling possible.

🎺🙂🎸
 
  • Like
Reactions: audiosteve
OK.... back from Saving The World ( dang it, it's cold in Ohio ). I was busy working, doing real things, you know?

So, I missed on getting the darn boards.... got the completion kit.

When will the boards be available again?

(Don't be telling me about using a portable device... I was stuck looking at Jet Engine Test Cells and their machineries... stuff that makes a pair of 5U amps definitely puny! 4G and 5G need not apply in the industrial World of Really Big, Loud Hardware that could fail spectacularly, catastrophically in a split second. I mean what's the point of a hard hat? What's the point of saving your brain if the rest of your body will be immolated in a split second? )

Anyhow, once again, in the caboose... hoping for boards.
You’re Tony. You don’t need boards 💪
 
  • Like
Reactions: tonyEE