CRC Power Supply (Class A amplifier)

[prasi]

sure bandol83, pleasure

analogdiy 4 boards (confirmed)
PauloPT 2 boards (confirmed)
Voysto 4 boards (confirmed)
ravid 2 boards (confirmed)
touchdown 4 boards (confirmed)
LHAMP 20 boards (confirmed)
xrk971 (ver1 or ver 2) 8 boards (confirmed)
avinunca 4 boards (confirmed)
AdeS 2 boards (confirmed)
bk856er 4 boards (confirmed)
Lutto 4 boards (confirmed)
DarpMalone 4 boards (confirmed)
rilke1999 6 boards (confirmed)
redarc12 4 boards (confirmed)
bambadoo 4 boards (confirmed)
Philipp23 8 boards (confirmed)
hui13 4 boards (confirmed)
patriz 4 boards (confirmed)
Project16 2 boards
Prasi+friends 10 boards
asanden 4 boards
jpr_pt 4 boards
spind 4 boards
BigE 4 boards
potepuh 4 boards
Dennis Hui 4 boards
Carmaux 4 boards
bandol83 4 boards

total 136

P.S. Thursday holiday for board house seems an advantage.

 

[ravid]

analogdiy 4 boards (confirmed)
PauloPT 2 boards (confirmed)
Voysto 4 boards (confirmed)
ravid 4 boards (confirmed)
touchdown 4 boards (confirmed)
LHAMP 20 boards (confirmed)
xrk971 (ver1 or ver 2) 8 boards (confirmed)
avinunca 4 boards (confirmed)
AdeS 2 boards (confirmed)
bk856er 4 boards (confirmed)
Lutto 4 boards (confirmed)
DarpMalone 4 boards (confirmed)
rilke1999 6 boards (confirmed)
redarc12 4 boards (confirmed)
bambadoo 4 boards (confirmed)
Philipp23 8 boards (confirmed)
hui13 4 boards (confirmed)
patriz 4 boards (confirmed)
Project16 2 boards
Prasi+friends 10 boards
asanden 4 boards
jpr_pt 4 boards
spind 4 boards
BigE 4 boards
potepuh 4 boards
Dennis Hui 4 boards
Carmaux 4 boards
bandol83 4 boards

total 138

Changing my order to 4 boards.

 

[marcus1]

Late entry if possible

analogdiy 4 boards (confirmed)
PauloPT 2 boards (confirmed)
Voysto 4 boards (confirmed)
ravid 4 boards (confirmed)
touchdown 4 boards (confirmed)
LHAMP 20 boards (confirmed)
xrk971 (ver1 or ver 2) 8 boards (confirmed)
avinunca 4 boards (confirmed)
AdeS 2 boards (confirmed)
bk856er 4 boards (confirmed)
Lutto 4 boards (confirmed)
DarpMalone 4 boards (confirmed)
rilke1999 6 boards (confirmed)
redarc12 4 boards (confirmed)
bambadoo 4 boards (confirmed)
Philipp23 8 boards (confirmed)
hui13 4 boards (confirmed)
patriz 4 boards (confirmed)
Project16 2 boards
Prasi+friends 10 boards
asanden 4 boards
jpr_pt 4 boards
spind 4 boards
BigE 4 boards
potepuh 4 boards
Dennis Hui 4 boards
Carmaux 4 boards
bandol83 4 boards
marcus1 4 boards

total 142

 

[AdeS]

Wouldn't it be interesting to create a topic in which experienced users would show the CRC schematics implemented for the different most used tensions? 20V, 35, 42V... It woud help who wants the PSU for a specific tension and doesn't know where to change. I think this would also increase the number of people interested in the board's GB.

 

[prasi]

Yes it definitely would be useful.
what I understand is it also depends a lot on end application Class-A, Class AB.
Also if one has access to quasimodo boards, it would help in optimizing the PSU better, although default values are a good start, like Aubrey posted.

Yes, already this GB is snowballed into a bigger GB than GB-1, lots and lots of work ahead!.

 

[themystical]

Completely last minute if possible?



analogdiy 4 boards (confirmed)

PauloPT 2 boards (confirmed)

Voysto 4 boards (confirmed)

ravid 4 boards (confirmed)

touchdown 4 boards (confirmed)

LHAMP 20 boards (confirmed)

xrk971 (ver1 or ver 2) 8 boards (confirmed)

avinunca 4 boards (confirmed)

AdeS 2 boards (confirmed)

bk856er 4 boards (confirmed)

Lutto 4 boards (confirmed)

DarpMalone 4 boards (confirmed)

rilke1999 6 boards (confirmed)

redarc12 4 boards (confirmed)

bambadoo 4 boards (confirmed)

Philipp23 8 boards (confirmed)

hui13 4 boards (confirmed)

patriz 4 boards (confirmed)

Project16 2 boards

Prasi+friends 10 boards

asanden 4 boards

jpr_pt 4 boards

spind 4 boards

BigE 4 boards

potepuh 4 boards

Dennis Hui 4 boards

Carmaux 4 boards

bandol83 4 boards

marcus1 4 boards
themystical 4 boards



total 146


Sent from my iPhone using Tapatalk

 

[prasi]

Yes , it is possible. Just had a talk with the supplier, fixed the qty to 150 boards.
So still 4 boards remain.
Posted for information of those interested.

To all GB subscribers,
Regarding Pcb prices, it will be $ 5 a piece instead of GB-1 price of $4.75 (some increase in FR-4 cost by board house supplier+ Indian currency has strengthened over past 3-4 months). + shipping +handling+ packing+ PayPal.

E.g. Grand total cost will be about 18.5-19 USD shipped to US for 2 Pcb.

Pcb specs as you are aware are 160mmx 100mm, 2.4mm thick fr-4, 70um copper, green mask, HASL PTH with SMOBC, etc.

Please start sending your name, postal address, postal code, paypal by PM as and when you get time.

I shall send you a PayPal invoice mentioning the cost break up and total cost.

Regards
Prasi

 

[aubmar]

And another completely last minute if possible?



analogdiy 4 boards (confirmed)

PauloPT 2 boards (confirmed)

Voysto 4 boards (confirmed)

ravid 4 boards (confirmed)

touchdown 4 boards (confirmed)

LHAMP 20 boards (confirmed)

xrk971 (ver1 or ver 2) 8 boards (confirmed)

avinunca 4 boards (confirmed)

AdeS 2 boards (confirmed)

bk856er 4 boards (confirmed)

Lutto 4 boards (confirmed)

DarpMalone 4 boards (confirmed)

rilke1999 6 boards (confirmed)

redarc12 4 boards (confirmed)

bambadoo 4 boards (confirmed)

Philipp23 8 boards (confirmed)

hui13 4 boards (confirmed)

patriz 4 boards (confirmed)

Project16 2 boards

Prasi+friends 10 boards

asanden 4 boards

jpr_pt 4 boards

spind 4 boards

BigE 4 boards

potepuh 4 boards

Dennis Hui 4 boards

Carmaux 4 boards

bandol83 4 boards

marcus1 4 boards

themystical 4 boards

aubmar 2 boards


total 148

 

[prasi]

OK, no problems.
Happy to see many repeat guys in the above list.

Regards
Prasi

 

[Project16]

One day I designed a small CRC for an amplifier and a person asked me if it was possible to put capacitors 4 legs (40 mm), then diode rectifiers separated and I was guided by another Person (Fab).
It was for fun!
I was far from imagining that this design would carry so much interest and as many printed circuits would be asked.

 

[xrk971]

Yes, 150 boards is an EPIC sized order (us DIY guys buy like 10 boards at time, maybe 50 like in the case of my pocket amp but x 3 times now, I never hard nerve to buy 150 in one fell swoop)

Thanks to Prasi and Project16 for making all this happen.

 

[prasi]

fell swoop

had to search google, as i didnt know the meaning.

"Shakespeare used the imagery of a hunting bird's 'fell swoop' to indicate the ruthless and deadly attack by Macbeth's agents. In the intervening years we have rather lost the original meaning and use it now to convey suddenness rather than savagery."

 

[xrk971]

Ha ha, thanks for checking the reference to Shakespeare's use.

 

[prasi]

One day I designed a small CRC for an amplifier and a person asked me if it was possible to put capacitors 4 legs (40 mm), then diode rectifiers separated and I was guided by another Person (Fab).
It was for fun!
I was far from imagining that this design would carry so much interest and as many printed circuits would be asked.

Yes P16,
design speaks for itself, that its been designed in collaboration with two maestro's, you and Fab.
I had the good opportunity to work on Fab's design earlier for a sponsored layout project and it was a privilege.

Many thanks to both of you!.

Regards
Prasi

 

[prasi]

Hello all,
Thanks to those who have shared the details through PM as requested.
I request others to share the details as per post # 387 (http://www.diyaudio.com/forums/grou...er-supply-class-amplifier-39.html#post5108902 )

This will enable me to organize the GB better, after all some may loose their ability to be in contact with the forum later, like it happened in GB-1.
regards
Prasi

BTW, PCB's ordered, with the same firm as last time.

 

[prasi]

Hello,
Just send me a PM (Private Message) containing all your details as per post #387.
regards
Prasi

 

[prasi]

Reserve List

slartibartfasst (4 boards)

 

[prasi]

I am still facing some issues in getting complete details from people.

So kindly ensure that following information is contained in your PM (Private Message) to me.

1. Complete name,
2. Postal address
3. postal code
4. paypal address

this will avoid unnecessary back and forth PM's.
to send a PM just click my user name on the left panel and click 'send a private message to prasi'. Posting here as, for some people it might be a first GB.

regards
Prasi

 

[prasi]

address and paypal email status.

analogdiy 4 boards (confirmed),yes
PauloPT 2 boards (confirmed), yes
Voysto 4 boards (confirmed),yes
ravid 4 boards (confirmed)
touchdown 4 boards (confirmed),yes
LHAMP 20 boards (confirmed)
xrk971 (ver1 or ver 2) 8 boards (confirmed)
avinunca 4 boards (confirmed),yes
AdeS 2 boards (confirmed),yes
bk856er 4 boards (confirmed),yes
Lutto 4 boards (confirmed)
DarpMalone 4 boards (confirmed)
rilke1999 6 boards (confirmed)
redarc12 4 boards (confirmed),yes
bambadoo 4 boards (confirmed)
Philipp23 8 boards (confirmed),yes
hui13 4 boards (confirmed),yes
patriz 4 boards (confirmed)
Project16 2 boards
Prasi+friends 10 boards
asanden 4 boards, yes
jpr_pt 4 boards, yes
spind 4 boards, yes
BigE 4 boards
potepuh 4 boards, yes
Dennis Hui 4 boards, yes
Carmaux 4 boards
bandol83 4 boards*
marcus1 4 boards, yes
themystical 4 boards, yes
aubmar 2 boards, yes

If there is any mistake against your name pl let me know.

 

[prasi]

analogdiy 4 boards (confirmed),yes
PauloPT 2 boards (confirmed), yes
Voysto 4 boards (confirmed),yes
ravid 4 boards (confirmed)
touchdown 4 boards (confirmed),yes
LHAMP 20 boards (confirmed)
xrk971 (ver1 or ver 2) 8 boards (confirmed), YES
avinunca 4 boards (confirmed),yes
AdeS 2 boards (confirmed),yes
bk856er 4 boards (confirmed),yes
Lutto 4 boards (confirmed)
DarpMalone 4 boards (confirmed)
rilke1999 6 boards (confirmed)
redarc12 4 boards (confirmed),yes
bambadoo 4 boards (confirmed), YES
Philipp23 8 boards (confirmed),yes
hui13 4 boards (confirmed),yes
patriz 4 boards (confirmed), YES
Project16 2 boards YES
Prasi+friends 10 boards OF COURSE
asanden 4 boards, yes
jpr_pt 4 boards, yes
spind 4 boards, yes
BigE 4 boards
potepuh 4 boards, yes+JLH2003(2pcb)
Dennis Hui 4 boards, yes
Carmaux 4 boards YES
bandol83 4 boards* YES
marcus1 4 boards, YES
themystical 4 boards, yes
aubmar 2 boards, yes

I am worried about LHAMP, he is the one with biggest order, and he is yet to contact me.. pl send in your details and I shall provide you a cost estimate for 20 PCB's.