LT4320 based active rectifier

[prasi]

THT LT4320 RECTIFIER

 

[e_fortier]

Thanks 👍

 

[PhopsonNY]

I successfully implemented it in my Pearl III Phono Preamp.
Excellent, and thanks a lot, Prasi.

 

[prasi]

Great man. Nice build. Congrats.. Do let us know if you feel the difference.
Member Vunce has also implemented this active rectifier in his builds I think.
Regards
Prasi

 

[PhopsonNY]

The LT43220 Active Rectifiers significantly improved the dark background of my Phono preamp as noted in my comments,
I have had some technical issues, but this is a fantastic improvement. It is highly recommended, and I will order more boards to have as spares for future projects.

 

[rickmcinnis]

I have installed the rectifier in a pair of ra7's THF51 power buffers running 3 amperes of current through the devices. I was using a fancy rectifier before (stth4110) but this one sounds better, puts out no heat to speak of, quieter and almost 10 percent more B- voltage.

I am very appreciative of your boards, prasi!

 

[Koenjer]

1. CRC PSU PCB IN SINGLES
Uptownsquash - 2 nos
danbmellow 4 - nos
jdoorn - 6
koenjer - 2


2. THT RECTIFIER IN PAIRS
danbmellow - 6 PAIRS
Uptownsquash - 20 PAIRS
koenjer - 1 PAIR


3. SMD RECTIFIER IN PAIRS
Uptownsquash - 10 PAIRS
jdoorn - 8 PAIRS
koenjer - 5 PAIRS



prices are SR. 1 is 6.5 USD PER PIECE, SR. 2 is 3.5USD PER PAIR, SR. 3 is 2.5 USD PER PAIR

 

[Ryssen]

1. CRC PSU PCB IN SINGLES
Uptownsquash - 2 nos
danbmellow 4 - nos
jdoorn - 6
koenjer - 2
2. THT RECTIFIER IN PAIRS
danbmellow - 6 PAIRS
Uptownsquash - 20 PAIRS
koenjer - 1 PAIR
Ryssen - 2 PAIRS

3. SMD RECTIFIER IN PAIRS
Uptownsquash - 10 PAIRS
jdoorn - 8 PAIRS
koenjer - 5 PAIRS

 

[Niels73]

1. CRC PSU PCB IN SINGLES
Uptownsquash - 2 nos
danbmellow 4 - nos
jdoorn - 6
koenjer - 2

2. THT RECTIFIER IN PAIRS
danbmellow - 6 PAIRS
Uptownsquash - 20 PAIRS
koenjer - 1 PAIR
Ryssen - 2 PAIRS
Niels73 - 10 PAIRS

3. SMD RECTIFIER IN PAIRS
Uptownsquash - 10 PAIRS
jdoorn - 8 PAIRS
koenjer - 5 PAIRS

 

[Marcus Halberstram]

1. CRC PSU PCB IN SINGLES
Uptownsquash - 2 nos
danbmellow 4 - nos
jdoorn - 6
koenjer - 2
Marcus Halberstram - 6

2. THT RECTIFIER IN PAIRS
danbmellow - 6 PAIRS
Uptownsquash - 20 PAIRS
koenjer - 1 PAIR
Ryssen - 2 PAIRS
Niels73 - 10 PAIRS

3. SMD RECTIFIER IN PAIRS
Uptownsquash - 10 PAIRS
jdoorn - 8 PAIRS
koenjer - 5 PAIRS

 

[Joschl]

1. CRC PSU PCB IN SINGLES
Uptownsquash - 2 nos
danbmellow 4 - nos
jdoorn - 6
koenjer - 2
Marcus Halberstram - 6
Joschl - 2

2. THT RECTIFIER IN PAIRS
danbmellow - 6 PAIRS
Uptownsquash - 20 PAIRS
koenjer - 1 PAIR
Ryssen - 2 PAIRS
Niels73 - 10 PAIRS
Joschl - 2 PAIRS

3. SMD RECTIFIER IN PAIRS
Uptownsquash - 10 PAIRS
jdoorn - 8 PAIRS
koenjer - 5 PAIRS

 

[aubmar]

A new build in a small box (80mm high) using Prasai's power supplies - getting close to turn on, pleased with it so far!

 

[uptownsquash]

@aubmar where are the other boards from?
Speaker protection/SS/amp

 

[aubmar]

The speaker protection comes as a kit from AliExpress and the Amp boards are home-made using the original circuit but configuring the outputs to be at each end of the pcb instead of original arrangement. I purchased most of the amp kit from Jims Audio in China - Recommended Seller.
The soft start comes assembled and also from Aliexpress - Its convenient because it can use a momentary switch for turning on rather than press on press off. If you build one then use original output transistors, which will probably be pulls from obsolete pcb's, but the difference is night and day compared to the equivalent outputs from today

 

[Pars]

1. CRC PSU PCB IN SINGLES
Uptownsquash - 2 nos
danbmellow 4 - nos
jdoorn - 6
koenjer - 2
Marcus Halberstram - 6
Joschl - 2

2. THT RECTIFIER IN PAIRS
danbmellow - 6 PAIRS
Uptownsquash - 20 PAIRS
koenjer - 1 PAIR
Ryssen - 2 PAIRS
Niels73 - 10 PAIRS
Joschl - 2 PAIRS

3. SMD RECTIFIER IN PAIRS
Uptownsquash - 10 PAIRS
jdoorn - 8 PAIRS
koenjer - 5 PAIRS
Pars - 8 PAIRS

 

[Ryssen]

1. CRC PSU PCB IN SINGLES
Uptownsquash - 2 nos
danbmellow 4 - nos
jdoorn - 6
koenjer - 2
Marcus Halberstram - 6
Joschl - 2

2. THT RECTIFIER IN PAIRS
danbmellow - 6 PAIRS
Uptownsquash - 20 PAIRS
koenjer - 1 PAIR
Ryssen - 4 PAIRS
Niels73 - 10 PAIRS
Joschl - 2 PAIRS

3. SMD RECTIFIER IN PAIRS
Uptownsquash - 10 PAIRS
jdoorn - 8 PAIRS
koenjer - 5 PAIRS
Pars - 8 PAIRS

 

[Tony_T]

1. CRC PSU PCB IN SINGLES
Uptownsquash - 2 nos
danbmellow 4 - nos
jdoorn - 6
koenjer - 2
Marcus Halberstram - 6
Joschl - 2

2. THT RECTIFIER IN PAIRS
danbmellow - 6 PAIRS
Uptownsquash - 20 PAIRS
koenjer - 1 PAIR
Ryssen - 4 PAIRS
Niels73 - 10 PAIRS
Joschl - 2 PAIRS

3. SMD RECTIFIER IN PAIRS
Uptownsquash - 10 PAIRS
jdoorn - 8 PAIRS
koenjer - 5 PAIRS
Pars - 8 PAIRS
Tony_T - 12 PAIRS

 

[dcd3500rg]

1. CRC PSU PCB IN SINGLES
Uptownsquash - 2 nos
danbmellow 4 - nos
jdoorn - 6
koenjer - 2
Marcus Halberstram - 6
Joschl - 2

2. THT RECTIFIER IN PAIRS
danbmellow - 6 PAIRS
Uptownsquash - 20 PAIRS
koenjer - 1 PAIR
Ryssen - 4 PAIRS
Niels73 - 10 PAIRS
Joschl - 2 PAIRS
dcd3500rg-15 PAIRS

3. SMD RECTIFIER IN PAIRS
Uptownsquash - 10 PAIRS
jdoorn - 8 PAIRS
koenjer - 5 PAIRS
Pars - 8 PAIRS
Tony_T - 12 PAIRS
dcd3500rg-15 PAIRS


Regards
Roland

 

[Co&]

1. CRC PSU PCB IN SINGLES
Uptownsquash - 2 nos
danbmellow 4 - nos
jdoorn - 6
koenjer - 2
Marcus Halberstram - 6
Joschl - 2
Co& - 4

2. THT RECTIFIER IN PAIRS
danbmellow - 6 PAIRS
Uptownsquash - 20 PAIRS
koenjer - 1 PAIR
Ryssen - 4 PAIRS
Niels73 - 10 PAIRS
Joschl - 2 PAIRS
Co& - 4 PAIRS

3. SMD RECTIFIER IN PAIRS
Uptownsquash - 10 PAIRS
jdoorn - 8 PAIRS
koenjer - 5 PAIRS
Pars - 8 PAIRS
Co& - 5 PAIRS

 

[Stepping3D]

1. CRC PSU PCB IN SINGLES
Uptownsquash - 2 nos
danbmellow 4 - nos
jdoorn - 6
koenjer - 2
Marcus Halberstram - 6
Joschl - 2
Co& - 4
Stepping3D - 2

2. THT RECTIFIER IN PAIRS
danbmellow - 6 PAIRS
Uptownsquash - 20 PAIRS
koenjer - 1 PAIR
Ryssen - 4 PAIRS
Niels73 - 10 PAIRS
Joschl - 2 PAIRS
Co& - 4 PAIRS

3. SMD RECTIFIER IN PAIRS
Uptownsquash - 10 PAIRS
jdoorn - 8 PAIRS
koenjer - 5 PAIRS
Pars - 8 PAIRS
Co& - 5 PAIRS
Stepping3D - 6 PAIRS