New Mini

[MikeW]

Mini running @ +/- 18 Volts, 1.5 Amp bias. 80,000 uf. per rail.

 

[MikeW]

It runs about 45 dge C after be on over night.

 

[MikeW]

Thanks for the labels.

 

[Raka]

Sound?

 

[Alain Dupont]

MikeW,

Wouahhhh, beautiful one.

Regards.

Alain.

 

[Stabist]

Wow Mike!

Nice amp

Can you tell me what are the dimensions of heatsinks?

Sound?

 

[MikeW]

The amp sounds nice. More bass than expected. The heatsinks are 11 x 6 x 2.25 inches. It runs about 45 deg. C.

 

[GRollins]

Looks more like a Maxi to me.

Grey

 

[promitheus]

Great looking amp you made there.
It doesn´t look so mini to me... lol
How much power does it give?

 

[MikeW]

I haven't measurd it yet. I am guessing 10-15 watts.

 

[Dennis Hui]

Hi Mike,

Cute amp. I like the wood and the nice sticker up front.

BTW, how many mini-a's have you built? This must be
like your fifth?

Cheers,
Dennis

 

[MikeW]

You are right.
Fifth, I will have to go to Mini-A.A.

I didn't keep all of them.

 

[roddyama]

So Mike,

Did you cut your mini-A board in half?

 

[Panelhead]

You are right.
Fifth, I will have to go to Mini-A.A.

I didn't keep all of them.

Glad you didn't, my Lowthers have never sounded so good!


George

 

[MikeW]

Hack saw

Yes, I did cut it in half. There are no traces in the middle and the ground plane is seperated.

 

[MikeW]

17.9 watts into 7.5 ohms

-/+ 16.4 volts @clipping into 7.5 ohms @ 1 Khz.

 

[jam]

Mike,

Great work, how about some shots of the insides.

Now if Rodd would get his sorry butt to work, and build one.

Regards,
Jam

 

[MikeW]

Last one

 

[cyclotronguy]

Nice effort

Hey Mike,

Very attractive amplifier, thanks for sending it so we could all admire your work.

Karen thanks you too, commenting that next time it snows the PassDiy bench will be quite cozy.

Life at her bench has been quite difficult since "Stupidicus Domesticus" the "Heater Cat" went seeking warmer climate.


Regards
Cyclotronguy

 

[MikeW]

Your welcome. Thanks for all the support.
Note: the bias is 1.5 amps across each source resistors. Fifty one watts of heat per sink.