PREDI’CT Build Thread (frozen)

Help Support GroupDIY:

dirty1_1garry

Well-known member
Joined
Oct 3, 2011
Messages
495
Location
Moscow
Winetree said:
Finished units
How do you calibrate?
Adjust trim and check what points for what voltage?

Read manual ;)
I recommend connect low VAC to pcb, calibrate heater voltage (some where around 6.3V),  insert tube and calibrate exact value of 6.3V.  Then connect high VAC and measure voltage on output transformer.
 

madriaanse

Well-known member
Joined
Apr 6, 2006
Messages
530
Location
Long Beach, CA
Hi everyone,

wanted to give a heads up on the Mouser BOM in this first post:

The following parts are not on the BOM:
C9-C11 100uf/350V 647-UPW2V101MRD
R1  487K 660-MF1/4DC4873F

Also, heatsink 532-529802B25G is too big and doesn't clear D5, D6
 

dirty1_1garry

Well-known member
Joined
Oct 3, 2011
Messages
495
Location
Moscow
madriaanse said:
Hi everyone,

wanted to give a heads up on the Mouser BOM in this first post:

The following parts are not on the BOM:
C9-C11 100uf/350V 647-UPW2V101MRD
R1  487K 660-MF1/4DC4873F

Also, heatsink 532-529802B25G is too big and doesn't clear D5, D6

Will check and improve! Thanks!
 

dirty1_1garry

Well-known member
Joined
Oct 3, 2011
Messages
495
Location
Moscow
ALL TRANSFORMER KIT'S SOLDOUT AT THIS MOMENT!  WAITING A NEW BATCH OF TRANSFORMERS! HOPE THAT IT WILL BE AVAILABLE DURING THREE/FOUR WEEKS.
 

dirty1_1garry

Well-known member
Joined
Oct 3, 2011
Messages
495
Location
Moscow
madriaanse said:
Hi everyone,
wanted to give a heads up on the Mouser BOM in this first post:
The following parts are not on the BOM:
C9-C11 100uf/350V 647-UPW2V101MRD
R1  487K 660-MF1/4DC4873F
Also, heatsink 532-529802B25G is too big and doesn't clear D5, D6

BOM updated!) Check it in the first massage of the thread ;)
 

baloubass

Member
Joined
Jan 17, 2015
Messages
24
HI some pics of my build.
I add some mod.
-Schaffener filter.
-Voltage select
-Ground lift switch
-Carbon film on the hammond 1402fv case.
-Neutrik powercone for the  power plug.
 

dirty1_1garry

Well-known member
Joined
Oct 3, 2011
Messages
495
Location
Moscow
baloubass said:
HI some pics of my build.
I add some mod.
-Schaffener filter.
-Voltage select
-Ground lift switch
-Carbon film on the hammond 1402fv case.
-Neutrik powercone for the  power plug.

Nice job! Nice case! where do you get it?
 

baloubass

Member
Joined
Jan 17, 2015
Messages
24
My case:
http://www.mouser.fr/ProductDetail/Hammond/1402FV/?qs=%2fha2pyFadugSWhhUu568dECpNvhU%2fBJPYvJdy4QUt%2f%252bbEtGVbHTsAg%3d%3d

But I think this case will be better because you can put the power transformer on the back panel and for more space inside.http://www.mouser.fr/ProductDetail/Hammond/1402HV/?qs=%2fha2pyFadugSWhhUu568dA5XEQJPm010vxF31fvzHMmpo7%2fswd4gtg%3d%3d

The film for the carbon style.
http://solutions.3m.com/wps/portal/3M/en_US/Graphics/3Mgraphics/ProductsGPIM/Products/~/3M-Wrap-Film-Series-1080?N=5786+8697840+3294006806+3294529207&rt=rud
And a 3M alu brushed for the panel.
 

dirty1_1garry

Well-known member
Joined
Oct 3, 2011
Messages
495
Location
Moscow
Hello everybody!

Right now all rev1.1 pcbs is sold, that's about 30 kits.
That was cool to hear all that comments from happy builders who build PREDI'CT.

So I'm announcing rev2 pcb!)
It will contain some kind of improvements of the circuit, output pot will be changed with appropriate stepped 600Ohm bridge-T switch + tube will be located horizontally for easier fitting it to the proper inclosure.
They will be available in next month!

Cheers,
Igor
 
Top