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Aksa Lender P-mos Hybrid Aleph (ALPHA) Class A Amp GB

For the folks getting the ceramic insulators, 1 set is 4 pieces enough for a stereo amp. Seems like people are ordering double sets. There are 20sets in the above order and I do not have enough left. So I might have to reduce your insulator orders to 1 set per pair of board.

I ordered a second set of insulators for the Alpha20W project but if you are short on them I will do otherwise, no problem.
 
Founder of XSA-Labs
Joined 2012
Paid Member
Alpha B.B. GB update

pelayostyle - 1 set
pcgab - 1 set bb, 1 set TO-264 insulator pads
*vvs07 - 3sets bb, 3 sets TO-264 insulator pads
emynet - 1 sets bb, 1 set TO-264 insulator pads
DrPro - 1 set bb, 1 set TO-264 insulator pads
wtl - 1 set bb, 1 set TO-264 insulator pads
yoaudio - 1 set bb, 1 set TO-264 insulator pads
markus22ch - 1 set bb, 1 set TO-264 insulator pads
Cambe - 1 set, 1 set of TO-264 insulator pads
ekidnah09 - 1 set bb, 1 set of TO-264 insulator pads

I changed everyone to 1 set on ceramic insulators per pair of boards.
 
Founder of XSA-Labs
Joined 2012
Paid Member
ALPHA BB GB Status Update....

pelayostyle - 1 set
pcgab - 1 set bb, 1 set TO-264 insulator pads
vvs07 - 3sets bb, 3 sets TO-264 insulator pads
emynet - 1 sets bb, 2 sets TO-264 insulator pads
DrPro - 1 set bb, 1 set TO-264 insulator pads
wtl - 1 set bb, 1 set TO-264 insulator pads
yoaudio - 1 set bb, 1 set TO-264 insulator pads
markus22ch - 1 set bb, 1 set TO-264 insulator pads
Cambe - 1 set, 1 set of TO-264 insulator pads
ekidnah09 - 1 set bb, 1 set of TO-264 insulator pads
Kokanee - 1 set bb, 1 set of TO-264 insulator pads

Please send me your PayPal address for invoice.
 
Founder of XSA-Labs
Joined 2012
Paid Member
ALPHA BB GB Status Update:
pelayostyle - 1 set
pcgab - 1 set bb, 1 set TO-264 insulator pads
vvs07 - 3sets bb, 3 sets TO-264 insulator pads, Invoice sent
emynet - 1 sets bb, 2 sets TO-264 insulator pads
DrPro - 1 set bb, 1 set TO-264 insulator pads, Invoice sent
wtl - 1 set bb, 1 set TO-264 insulator pads, Invoice sent
yoaudio - 1 set bb, 1 set TO-264 insulator pads
markus22ch - 1 set bb, 1 set TO-264 insulator pads
Cambe - 1 set, 1 set of TO-264 insulator pads
ekidnah09 - 1 set bb, 1 set of TO-264 insulator pads, Aksa Lender Pre with TH, Invoice sent
Kokanee - 1 set bb, 1 set of TO-264 insulator pads
 
Member
Joined 2014
Paid Member
ALPHA BB GB Status Update:

pelayostyle - 1 set
pcgab - 1 set bb, 1 set TO-264 insulator pads
vvs07 - 3sets bb, 3 sets TO-264 insulator pads, Invoice sent
emynet - 1 sets bb, 2 sets TO-264 insulator pads
DrPro - 1 set bb, 1 set TO-264 insulator pads, Invoice sent
wtl - 1 set bb, 1 set TO-264 insulator pads, Invoice sent
yoaudio - 1 set bb, 1 set TO-264 insulator pads
markus22ch - 1 set bb, 1 set TO-264 insulator pads
Cambe - 1 set, 1 set of TO-264 insulator pads
ekidnah09 - 1 set bb, 1 set of TO-264 insulator pads, Aksa Lender Pre with TH, Invoice sent
Kokanee - 1 set bb, 1 set of TO-264 insulator pads
Vunce - 1 set bb, 1 set of TO-264 insulator pads
 
Founder of XSA-Labs
Joined 2012
Paid Member
pelayostyle - 1 set
pcgab - 1 set bb, 1 set TO-264 insulator pads
vvs07 - 3sets bb, 3 sets TO-264 insulator pads, Paid
emynet - 1 sets bb, 2 sets TO-264 insulator pads, invoice sent
DrPro - 1 set bb, 1 set TO-264 insulator pads, Paid
wtl - 1 set bb, 1 set TO-264 insulator pads, Paid
yoaudio - 1 set bb, 1 set TO-264 insulator pads
markus22ch - 1 set bb, 1 set TO-264 insulator pads
Cambe - 1 set, 1 set of TO-264 insulator pads
ekidnah09 - 1 set bb, 1 set of TO-264 insulator pads, Aksa Lender Pre with TH, Paid
Kokanee - 1 set bb, 1 set of TO-264 insulator pads, Invoice Sent
Vunce - 1 set bb, 1 set of TO-264 insulator pads, Invoice Sent
 
Founder of XSA-Labs
Joined 2012
Paid Member
For those of you contemplating CPU coolers, the Deepcool GAMAX300 that I am using works extremely well. You need to replace their plastic pushpins with real steel screws. I just found a retailer hat has them at $15 ea vs usual $25. Once in a blue moon they are $12 on eBay. Haven’t seen that lately.

DEEPCOOL GAMMAXX 300 136mm Height 130W TDP CPU Cooler | AVADirect

Deepcool Gammaxx 300 Cpu Cooler 120Mm Pwm Fan

My MOSFETs are running 38C on the clamp bar and 10% fan speed (inaudible from 3 ft away).
 
Founder of XSA-Labs
Joined 2012
Paid Member
A stroll down memory lane. Here is what was done in less than 3 months...
Thanks to the brave souls below who took the ALPHA plunge!

Alpha Big Boy in stereo in case you missed it:
673651d1523088129-aksa-lender-mos-hybrid-aleph-alpha-amplifier-alpha-bb-stereo-build-04-jpg


Here is Vunce’s Alpha 20:
675825d1524021343-aksa-lender-mos-hybrid-aleph-alpha-amplifier-99712ca9-427f-463b-bf08-288d2ab3601e-jpg


Wtl’s Alpha 20:
673641d1523083880-aksa-lender-mos-hybrid-aleph-alpha-amplifier-imgp1388-jpg


Alibear’s Alpha 20 with new tunnel heat sink.
attachment.php


Pcgab’s Alpha 20:
668160d1520896324-aksa-lender-mos-hybrid-aleph-alpha-amplifier-img_0044-jpg


Juntuin’s Alpha 20:
668303d1520960770-aksa-lender-mos-hybrid-aleph-alpha-amplifier-alphainside-jpg


And here is the very first zero’th prototype Alpha - P2P with CPU cooler:
659377d1517198709-aksa-lender-mos-hybrid-aleph-alpha-amplifier-alpha-prototype-01-jpg
 

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Founder of XSA-Labs
Joined 2012
Paid Member
Alpha BB GB Status Update

*pelayostyle - 1 set
pcgab - 1 set bb, 1 set TO-264 insulator pads, Invoice sent
vvs07 - 3sets bb, 3 sets TO-264 insulator pads, Paid
emynet - 1 sets bb, 2 sets TO-264 insulator pads, Paid
DrPro - 1 set bb, 1 set TO-264 insulator pads, Paid
wtl - 1 set bb, 1 set TO-264 insulator pads, Paid
*yoaudio - 1 set bb, 1 set TO-264 insulator pads
*markus22ch - 1 set bb, 1 set TO-264 insulator pads
*Cambe - 1 set, 1 set of TO-264 insulator pads
ekidnah09 - 1 set bb, 1 set of TO-264 insulator pads, Aksa Lender Pre with TH, Paid
Kokanee - 1 set bb, 1 set of TO-264 insulator pads, Invoice Sent
Vunce - 1 set bb, 1 set of TO-264 insulator pads, Invoice Sent

* please send me your PayPal address so that I can send you an invoice.
 
Founder of XSA-Labs
Joined 2012
Paid Member
ALPHA BB GB status update:

*pelayostyle - 1 set
pcgab - 1 set bb, 1 set TO-264 insulator pads, Invoice sent
vvs07 - 3sets bb, 3 sets TO-264 insulator pads, Paid
emynet - 1 sets bb, 2 sets TO-264 insulator pads, Paid
DrPro - 1 set bb, 1 set TO-264 insulator pads, Paid
wtl - 1 set bb, 1 set TO-264 insulator pads, Paid
*yoaudio - 1 set bb, 1 set TO-264 insulator pads
*markus22ch - 1 set bb, 1 set TO-264 insulator pads
*Cambe - 1 set, 1 set of TO-264 insulator pads
ekidnah09 - 1 set bb, 1 set of TO-264 insulator pads, Aksa Lender Pre with TH, Paid
Kokanee - 1 set bb, 1 set of TO-264 insulator pads, Invoice Sent
Vunce - 1 set bb, 1 set of TO-264 insulator pads, Invoice Sent
bvtrinh - 1 set bb, 1 set of TO-264 insulator pads, Invoice Sent
 
Founder of XSA-Labs
Joined 2012
Paid Member
ALPHA BB GB Status Update

*pelayostyle - 1 set
pcgab - 1 set bb, 1 set TO-264 insulator pads, Invoice sent
vvs07 - 3 sets bb, 3 sets TO-264 insulator pads, Paid
emynet - 1 sets bb, 2 sets TO-264 insulator pads, Paid
DrPro - 1 set bb, 1 set TO-264 insulator pads, Paid
wtl - 1 set bb, 1 set TO-264 insulator pads, Paid
*yoaudio - 1 set bb, 1 set TO-264 insulator pads
*markus22ch - 1 set bb, 1 set TO-264 insulator pads
*Cambe - 1 set, 1 set of TO-264 insulator pads
ekidnah09 - 1 set bb, 1 set of TO-264 insulator pads, Aksa Lender Pre with TH, Paid
Kokanee - 1 set bb, 1 set of TO-264 insulator pads, Invoice Sent
Vunce - 1 set bb, 1 set of TO-264 insulator pads, Invoice Sent
bvtrinh - 1 set bb, 1 set of TO-264 insulator pads, Paid
muthumuthiah - 1 set bb, 1 set of TO-264 insulator pads, ship to US address TBD, Invoice Sent
 
Founder of XSA-Labs
Joined 2012
Paid Member
x,
Sent you 2 pm's with my paypal address.

Thank you! I was a bit busy with non audio stuff yesterday so getting back today. Will send you invoice soon.

*pelayostyle - 1 set
pcgab - 1 set bb, 1 set TO-264 insulator pads, Paid
vvs07 - 3 sets bb, 3 sets TO-264 insulator pads, Paid
emynet - 1 sets bb, 2 sets TO-264 insulator pads, Paid
DrPro - 1 set bb, 1 set TO-264 insulator pads, Paid
wtl - 1 set bb, 1 set TO-264 insulator pads, Paid
yoaudio - 1 set bb, 1 set TO-264 insulator pads, Invoice Sent
*markus22ch - 1 set bb, 1 set TO-264 insulator pads
*Cambe - 1 set, 1 set of TO-264 insulator pads
ekidnah09 - 1 set bb, 1 set of TO-264 insulator pads, Aksa Lender Pre with TH, Paid
Kokanee - 1 set bb, 1 set of TO-264 insulator pads, Invoice Sent
Vunce - 1 set bb, 1 set of TO-264 insulator pads, Invoice Sent
bvtrinh - 1 set bb, 1 set of TO-264 insulator pads, Paid
muthumuthiah - 1 set bb, 1 set of TO-264 insulator pads, ship to US address TBD, Paid
 
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That is an odd scale. For ~$16USD*, I think they are a great deal. They aren't cheap, but compared to other caps on that page, they are economical IMO.



*ClarityCap 10 mfd CSA Range with CopperConnect Technology

I'm not so sure I find the "13-level scale" odd, in fact I think it is much better than, say, a five-point or 10-point scale.

The problem with the fixed scales is one of time, not steps. Last year's "10" is bettered by this year's "9", yet there is no way to "move" last year's 10 down to 8 (or wherever it belongs).

A similar scale, Stereophile's well known Class A. B, C scale partly, and clumsily, acknowledges this problem by now having a Class A+, and by dividing Class A into subclasses such as for loudspeakers (with and without very low frequency extension), yet does not solve it. A "Stereophile Class A" rated product will wear the badge forever, yet one of 20 years ago (or maybe five, if we are talking certain digital products) may be able to compete with that of today, or may pale in comparison. There is no true distinction.

A "13-step" scale solves this problem neatly. It isn't, actually, a 13-point scale at all; in theory it is near infinite, in practice considerably less so, but none the less not limited to 13 steps.

Next year could bring one cap that deserves a grade of 14, as in it's better than today's 13 graded cap, and there is no need to adjust your system for products of previous generations. A 9 is still a 9, and is still graded the same in relation to the 13-grade, the 5-grade, and if it deserves being created, the 14-grade. I quite like it, actually.
 
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