Hello all,
I have 4 of the crcrc boards available .
Let me if there is any requirement.
Regards
Prasi
I have 4 of the crcrc boards available .
Let me if there is any requirement.
Regards
Prasi
Hi, I will take 2 crcrc boards. If you can add 2 pairs of SMD LT4320 active rectifier boards, that would be perfect.
Regards,
Boris
Regards,
Boris
Ok Boris,
I have added 2 CRCRC PSU PCBs to your SMD LT4320 board.
List in LT4320 based rectifier GB.
Regards
Prasi
I have added 2 CRCRC PSU PCBs to your SMD LT4320 board.
List in LT4320 based rectifier GB.
Regards
Prasi
I am starting to populate the board (finally). What is the purpose of the fuses?
Also, can someone explain to me the application of jumpers JP1 and JP2? TIA
Also, can someone explain to me the application of jumpers JP1 and JP2? TIA
Fuses are for protection in case of short or fault after psu. Jumpers are there should you decide not to use them. In any case make sure you fuse the power inlet.
Let me check and come back.
Meanwhile you might share the paypal email and complete postal address to me via private message.
Hello Ryssen,
I am all out of CRCRC pcbs.
However I might start a new gb for lt4320 based CRC pcbs.
LT4320 based active rectifier
I also have pcbs from the earlier Project16 design CRC PSU pcbs .
CRC Power Supply (Class A amplifier)
regards
Prasi
I am all out of CRCRC pcbs.
However I might start a new gb for lt4320 based CRC pcbs.
LT4320 based active rectifier
I also have pcbs from the earlier Project16 design CRC PSU pcbs .
CRC Power Supply (Class A amplifier)
regards
Prasi
Going through some old boxes it seems that I joined tha GB:
I also have pcbs from the earlier Project16 design CRC PSU pcbs:
So I have 4 of those pcb`s at home.
All is fine then....
I also have pcbs from the earlier Project16 design CRC PSU pcbs:
So I have 4 of those pcb`s at home.
All is fine then....
thanks for posting your build ckwong!.
very nice build indeed and built exactly how its meant to be built.
I see 2 blue wires going to the CT tab. Can you tell me what they are?
There are tabs just adjacent to main ground tab on the output side marked JP1 and JP2.
They are meant for the small signal ground for the lowest noise.
regards
prasi
very nice build indeed and built exactly how its meant to be built.
I see 2 blue wires going to the CT tab. Can you tell me what they are?
There are tabs just adjacent to main ground tab on the output side marked JP1 and JP2.
They are meant for the small signal ground for the lowest noise.
regards
prasi
Hi Prasi, the two blue wires, I just source the AC directly for both amp boards DC protection and relay portion (I take a marked A point not the A')
And you mentioned JP1&2 tab for small signal, I will try connect it to compare the sound, when the input signal GND attach on the Amp board.
Thx for your reminding��
And you mentioned JP1&2 tab for small signal, I will try connect it to compare the sound, when the input signal GND attach on the Amp board.
Thx for your reminding��
Hi,
I am planning to place orders for few boards after the current lockdown in India is relaxed and people and companies will start working again. So, i am presently collecting interest from members so that all orders (this psu, lt4320 smd / THT rectifiers, etc) can be placed at one go.
All the specs of boards are mentioned above , but would like to mention a few more features.
1. it can take up LT4320 active rectifier bridge from my another GB instead of the regular diode bridge (LT4320 based active rectifier). The LT4320 will make up for loss of headroom due to CRCRC slightly.
2. it can take up TO-220 power resistors if ordinary resistors are not preferred.
3. With a bit of imagination, one could even connect a small CMX like my design posted for (Gtose and Mark Johnson CMX.
4. lot of options for resistors, capacitors and even diodes (to-220 and to-247)
5. with on-board snubbers one can eliminate transformer ringing with a proper jig from Mark Johnson's thread on quasi-modo snubbers.
I am currently working a slightly modified design of the LT4320 SMD rectifiers and will be able to place orders at the same time as this board. I can even manufacture a few boards of cap multiplier if any one is interested in that and be able to ship all of them in a single shipment..
So this makes it a very very neat and quiet 'little' psu for any class -A and Class-AB amplifier project.
regards
prasi
this is also posted in first post of this thread as Edit 3.
I am planning to place orders for few boards after the current lockdown in India is relaxed and people and companies will start working again. So, i am presently collecting interest from members so that all orders (this psu, lt4320 smd / THT rectifiers, etc) can be placed at one go.
All the specs of boards are mentioned above , but would like to mention a few more features.
1. it can take up LT4320 active rectifier bridge from my another GB instead of the regular diode bridge (LT4320 based active rectifier). The LT4320 will make up for loss of headroom due to CRCRC slightly.
2. it can take up TO-220 power resistors if ordinary resistors are not preferred.
3. With a bit of imagination, one could even connect a small CMX like my design posted for (Gtose and Mark Johnson CMX.
4. lot of options for resistors, capacitors and even diodes (to-220 and to-247)
5. with on-board snubbers one can eliminate transformer ringing with a proper jig from Mark Johnson's thread on quasi-modo snubbers.
I am currently working a slightly modified design of the LT4320 SMD rectifiers and will be able to place orders at the same time as this board. I can even manufacture a few boards of cap multiplier if any one is interested in that and be able to ship all of them in a single shipment..
So this makes it a very very neat and quiet 'little' psu for any class -A and Class-AB amplifier project.
regards
prasi
this is also posted in first post of this thread as Edit 3.
Prasi,
You do some amazing work here.
I would like to register for 4 boards please. Hoping to use a couple in my KSA50 clone.
Thanks
You do some amazing work here.
I would like to register for 4 boards please. Hoping to use a couple in my KSA50 clone.
Thanks
Thanks chiily.
Ok lets see if the requirements star rolling in. The magic number range would be 30-50.
price per board is same @ 9USD +paypal&S&H.
Specs 150mm x 150mm , 2.4mm thick FR-4, 70um copper, double sided PTH, Green masked, white silk, HASL
chiily 4 nos.
Ok lets see if the requirements star rolling in. The magic number range would be 30-50.
price per board is same @ 9USD +paypal&S&H.
Specs 150mm x 150mm , 2.4mm thick FR-4, 70um copper, double sided PTH, Green masked, white silk, HASL
chiily 4 nos.
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