All pcb sets were shipped, except Star Cruiser (email sent, no payment, no reply...), and thebiglebowski13 (pcb paid, but not the shipping). Please get back to me.
Let me know when you'll get them
Thanks
SB
Let me know when you'll get them
Thanks
SB
Hi. Thanks for letting me know, still no reply from Star Cruiser and thebiglebowski13.
I'll start next sending email for payment for the waiting list, with the intention of placing a last pcb order in about 2 weeks.
Thanks
SB
I'll start next sending email for payment for the waiting list, with the intention of placing a last pcb order in about 2 weeks.
Thanks
SB
Hi Sylvain
The boards arrived this morning all good and earlier than expected. Thanks for a trouble free transaction, they look good all shiny and red! ��
I now know that unicorns exist!
cheers.
The boards arrived this morning all good and earlier than expected. Thanks for a trouble free transaction, they look good all shiny and red! ��
I now know that unicorns exist!
cheers.
Still no reply from the last member on the first list, Star Cruiser. Sent you a Paypal payment request. Please get back to me. Thanks
SB
SB
Paradise Phono PCB latest Mods
Simon, one of the group member, sent me what are apparently the latest mods on the phono pcb: some parts are not needed (no problem to install them), a few are added for increase power supply stability and a few parts are changed. Check the pictures. They are easy to implement on the current pcb that was sent with the first group. So don't worry your pcb are still good to go. In fact I'm not using these mods and never had any problem myself.
This preamp went through a lot of different iterations. These mods will bring it current with the latest ones...
Mods list:
-Shunt stability mod 2x 470pf and 2 x 2.2n caps across the transistors under the heatsink.
-Werner's stability mod to compensate for lead inductance on longer psu cabbles: 2x 35v 22uf caps on the psu input pins and 2x .470n film caps on the outer PNP and NPN on the heatsink. Soldered emitter-ground.
-Use a J113 and 1k resistor in place of both sets of j310 and 3.3k resistor.
-Remove the diode, 1k resistor and 2sk170 from the input stage current mirror. These parts are a mistake, left in circuit from an earlier iteration of the current mirrors, they do nothing but cost money.
I'll put together a modified parts list and will send a copy to the first buyers.
I'll add these mods to the newest pcb batch.
Thanks Simon.
Simon, one of the group member, sent me what are apparently the latest mods on the phono pcb: some parts are not needed (no problem to install them), a few are added for increase power supply stability and a few parts are changed. Check the pictures. They are easy to implement on the current pcb that was sent with the first group. So don't worry your pcb are still good to go. In fact I'm not using these mods and never had any problem myself.
This preamp went through a lot of different iterations. These mods will bring it current with the latest ones...
Mods list:
-Shunt stability mod 2x 470pf and 2 x 2.2n caps across the transistors under the heatsink.
-Werner's stability mod to compensate for lead inductance on longer psu cabbles: 2x 35v 22uf caps on the psu input pins and 2x .470n film caps on the outer PNP and NPN on the heatsink. Soldered emitter-ground.
-Use a J113 and 1k resistor in place of both sets of j310 and 3.3k resistor.
-Remove the diode, 1k resistor and 2sk170 from the input stage current mirror. These parts are a mistake, left in circuit from an earlier iteration of the current mirrors, they do nothing but cost money.
I'll put together a modified parts list and will send a copy to the first buyers.
I'll add these mods to the newest pcb batch.
Thanks Simon.
Attachments
Last edited:
Are we to understand that the next PCB you order will be 100% up to date?
If so, this project may be back on the table!