F5m kit

[Russellc]

Correct. Build a Stasis. Or a big Aleph. Or perhaps one of the Burning Amp variations.

Although Nelson has said, “There’s no such thing as a heatsink too big.”, this will work just perfectly in a 3U. It will probably even work in a 2U if you don't mind it getting quite warm to the touch.

So, I take it this version is cooler than original F5? Nice it can use smaller (less expensive) heat sinks, appears to make about same power...

 

[Russellc]

A perhaps naive question: The transistors must be isolated from the heatsinks - right?

NB: Is there any news about the hostage situation in the Red Sea?

Yes. They will release everyone, but they want to keep the F5m kits ....

 

[Russellc]

Don't worry...besides, who's to say the kits won't 'go live' when we're all asleep in North America...

You sleep when a new kit is in bound? I've worn out my refresh button.

 

[poseidonsvoice]

So, I take it this version is cooler than original F5? Nice it can use smaller (less expensive) heat sinks, appears to make about same power...

I believe the original DiyAudio F5 design was biased around 1.3A and many built it with a 4U/300 and about 46 degrees C on the heatsinks. This design has options for 1.1A to 1.4A and smaller enclosure ‘options.’ In any case, this is dependent on heatsink size and how comfortable you are with the final temperature. For some folks 55 degrees is very, very hot (i.e 30 degrees above ambient).

So options are there with this one but as you know unless Papa publishes it and states that ‘it’s okay’, many newbie diy’ers aren’t intrepid enough to experiment 💪😉!!

Best,
Anand.

 

[poseidonsvoice]

On page 7 of the revised F5m build doc. Just one correction: With 0.47 ohm source resistors, I believe 1.4A bias would render a voltage of 0.66V.

I think Papa was just making sure we were awake.

Best,
Anand.

 

[tonyEE]

»I'm sorry Dave, I'm afraid you must do that…«

How about a pair of HAL 9000 cases for the F5m?

 

[Zen Mod]

consider they're all born from HAL 9000 case

 

[tonyEE]

Is that guy named... "Tony"... ?

"Hello Amp, are you with me? Are you ready to play?"

 

[myleftear]

I actually have some of the (most important) parts to make it/dive into another rabbit-hole… 🤓

 

[Toys4Boys]

 

[e_fortier]

The F5m is in the store but seems already sold out…
I check every day, when was it made available?

Price is excellent, thanks to everyone who makes this possible 😀

Thanks
Eric

 

[A Jedi]

I don't see it in the store. What are you looking at?

 

[e_fortier]

See my 2 pics above

 

[birdbox]

We are getting close now. The anticipation is all part of the fun 😁

 

[Mikerodrig27]

I just looked at the F5m in the store (not marked as in-stock yet) and it is most definitely a sweet little kit! I think the F5m is going to be a lot of fun guys!

 

[Holzarbeiter]

It is marked out of stock

Click to expand

F5M Completion Kit​

Sold out
Current price$ 85.00
Availability:
Out of stock
Quantity


Sold out
Notify me when available


F5M Completion kit.

What's in the box?​

• 4 x 1K TRIM POTS
• 4 x RES 270 2W
• 2 x RES 22 2W
• 4 x RES .47 2W
• 2 x RES 10K .4W
• 2 x RES 47K .4W
• 12 x CAPACITORS
• 2 x RECTIFIER BRIDGE
• 3 x THERM 5A 10OHM
• 4 x INSULATORS
• 12 x SPACER 3/8D X .25L X .14 ID
• 4 x SCREWS 6-32 X ¼
• 4 x SCREWS M3 X 8mm
• 8 x SCREWS M3 X 12mm
• 4 x WASHERS M3

Customer Reviews​

 

[Holzarbeiter]

Begs the question where were/are the boards and why is the kit listed without notification?

 

[e_fortier]

We are aware it’s sold out, read the previous posts 😀

 

[Holzarbeiter]

Begs the question where were/are the boards and why is the kit listed without notification?

That is not what I stated.

We are aware it’s sold out, read the previous posts 😀

I asked where are the boards and why was the kit listed without notification???

It is quite obvious the store has it listed out of stock.

 

[birdbox]

"Other people need to see what I've seen, they need to see...

This is the way it's been done for billions of years. Small moves...small moves."