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FS: JasonKuetemann CAP-Multiplier & Dual LT1763 - PSU

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Rudi_Ratlos

Rudi_Ratlos

R.I.P.
Joined 2009
#1
Gentlemen, I have 5 pairs of these PSU-PCBs (image 1) left.

A pair consists of:

1 - Jason Kuetemann's CAP-Multiplier
Find attached the PCB's topview and schematic.
This is the thread where Jason is describing his CAP-Multipier-version:
http://www.diyaudio.com/forums/powe...lified-mrevil-pmi-capacitance-multiplier.html

2 - A Dual LT1763-based PSU
Dual means: the PCB has 2 LT1763-PSU-sections and you can configure the PCB as 2 independent PSUs (for example as a +/- VDC PSU).
Find attached the PCB's topview and schematic of one PSU-section.

The price for a pair of these 2 PCBs incl. worldwide shipping is 12€.

If you like and would have a pair: tell me.

Best regards - Rudi_Ratlos

P.S.: Correction: the Tamura-transformer of the LT1763-PCB is a type 3FD-3xx one, not 3FD-4xx.
 

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#3
Forget about this offer, Gentlemen.

I have once more checked the pinout of the IRFP9140 (the CAP-Multiplier pass transistor), and it seems that I have used a wrong EAGLE-library.

The gate of the IRFP9140 is number 1!

I am very sorry - is there any administrator (please) who can delete this thread?

Best regards - Rudi_Ratlos
 
#5
Rudi_Ratlos said:
Forget about this offer, Gentlemen.

I have once more checked the pinout of the IRFP9140 (the CAP-Multiplier pass transistor), and it seems that I have used a wrong EAGLE-library.

The gate of the IRFP9140 is number 1!

I am very sorry - is there any administrator (please) who can delete this thread?

Best regards - Rudi_Ratlos
Click to expand...

Hi Rudi,

Is this board identical to the one you sold a few months ago ?

Please confirm.

BR,
Eric
 
#6
Eric, I have refunded your payment (10€ for 1-2 PCBs ?) a minute ago.
The PCB(s) that I have sent you, are wrong (wrong IRFP9140 pin assignment).

But you can easily amend this error (see image 1).

When I did the layout for Jason's CAP-multiplier, I copied the schematic from my current "Active ACA#1 - project" (see post#34 in http://www.diyaudio.com/forums/pass-labs/283245-aca-active-speaker-project-4.html), but mounted the IRFP pass-transistor vertically
(as opposed to horizontally, beneath the PCB as in the ACA#1 project).
Since the "horizontal IRFP9140" and "vertical IRFP9140" are different devices in my EAGLE-layout software and I did not check the pinout of the vertical version carefully, this mishap happened.

I am currently busy correcting my layout of Jason's CAP-multiplier PCB.

Best regards - Rudi_Ratlos

P.S.: I forgot to mention: Jason's CAP-Multilpier is a real gem, elegant and simple, with extraordinary performance (f.e.: ripple being << 1mV!).
 

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#8
Gentlemen, as I have told you in post #6 of this thread, I have done the layout for Rev.1 of Jason's CAP-Multiplier, this time reflecting the correct pinout of the IRFP9140.
You will now be able to either mount the pass-transistor vertically or horizontally (see the hole on the right side of the 1.000µF output capacitor).

I apolozise for the IRFP-pinout error that I have done before.

For those who would like to have:

One PCB (size: 100x90mm) includes two of Jason's CAP-Multipliers.
You will be easily able to break it apart across the yellow milling line.

I will order 10 of these PCBs, keep 2 of them for myself and will offer you the remaining 8 PCBs for 12€ incl. worldwide shipping.

If you are interested: please tell me.

Best regards - Rudi_Ratlos
 

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#10
Rudi_Ratlos said:
Gentlemen, as I have told you in post #6 of this thread, I have done the layout for Rev.1 of Jason's CAP-Multiplier, this time reflecting the correct pinout of the IRFP9140.
You will now be able to either mount the pass-transistor vertically or horizontally (see the hole on the right side of the 1.000µF output capacitor).

I apolozise for the IRFP-pinout error that I have done before.

For those who would like to have:

One PCB (size: 100x90mm) includes two of Jason's CAP-Multipliers.
You will be easily able to break it apart across the yellow milling line.

I will order 10 of these PCBs, keep 2 of them for myself and will offer you the remaining 8 PCBs for 12€ incl. worldwide shipping.

If you are interested: please tell me.

Best regards - Rudi_Ratlos
Click to expand...


Hi Rudi,

I'm interested in one PCB.

Best regards,

Albert
 
#18
Gentlemen, I have received the PCBs this morning and have already taken your letters to the post-office.

The PCBs are "pre-milled" and can be easily broken into 2 parts.

Find attached the BoM for one CAP-Multiplier.

Best regards - Rudi_Ratlos
 

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