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Bigbottle MM/MC Hybrid Valve Phonostage PCB
Bigbottle MM/MC Hybrid Valve Phonostage PCB
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Old 20th October 2019, 03:29 PM   #21
ringeraja is offline ringeraja  Serbia
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Interested in this board.
Waiting for group buy.
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Old 20th October 2019, 03:54 PM   #22
968driver is offline 968driver  Belgium
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Also interested in this PCB.
Please inform me when it is available.
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Old 21st October 2019, 03:00 AM   #23
skunark is offline skunark  United States
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Bigbottle MM/MC Hybrid Valve Phonostage PCB
Sign me up as well --Jim
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Old 21st October 2019, 06:32 PM   #24
Bigman80 is online now Bigman80  England
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Hi All,

Yes, update is that the final part of this revision is now being selected. It may seem Insignificant to some but the job of the 5v relay is pivotal and we're looking for a good one.

As soon as this is done, it should be pretty much ready to go. All being dependant on the free time of the PCB designer, Andy.
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Old 21st October 2019, 07:02 PM   #25
ringeraja is offline ringeraja  Serbia
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Thanks mate and many thanks to Andy, hope GB will be soon.

Meanwhile, could you please tell me something about PSU for MC phono you already built.
Something special or not?
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Old 21st October 2019, 08:32 PM   #26
Bigman80 is online now Bigman80  England
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Quote:
Originally Posted by ringeraja View Post
Thanks mate and many thanks to Andy, hope GB will be soon.

Meanwhile, could you please tell me something about PSU for MC phono you already built.
Something special or not?
It has good ripple rejection, that's about all I know lol.

I'm only the middle man on these projects. My participation is to link the people with the actual knowledge and organise the GB etc.

I don't profess to know anything either, as it would be far too easy to discover I do not haha.

The PSU on the MM/MC version is virtually identical, save for one capacitor which was no longer required.

The phonostages I've built up have all been really good to listen to and as long as the valves glow, the PSU must be OK.

If someone wanted to totally pimp the PSU design, I'd happily accept the alterations if it was demonstrably better.

This project has developed a few times due to the needs and wants of capable members and I am more than happy to continue developing it.

Last edited by Bigman80; 21st October 2019 at 08:35 PM.
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Old 23rd October 2019, 10:47 PM   #27
ringeraja is offline ringeraja  Serbia
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Thank you for answering.
Do you have circut design or other sort of documentation for this PSU?

Just thinking what to combine with this "bottle".
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Old 25th October 2019, 09:26 AM   #28
Bigman80 is online now Bigman80  England
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Quote:
Originally Posted by ringeraja View Post
Thank you for answering.
Do you have circut design or other sort of documentation for this PSU?

Just thinking what to combine with this "bottle".
I am unable to share the circuit diagram, as it isn't mine.

Part of the agreement to use the design is that I do not distribute it.

The PSU is on the same PCB as the signal circutry so it could possibly be bypassed buy that's for more technical minds than mine to figure out.

In standard form, like how I use it, it's very good!
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Old 25th October 2019, 10:16 AM   #29
ringeraja is offline ringeraja  Serbia
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Ok, fair enough

Waiting final PCB and GB.
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Old 29th October 2019, 10:11 AM   #30
ringeraja is offline ringeraja  Serbia
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One more question....hope I can ask.
Regarding MM/MC, is it possible to implement only 1 pair of input RCA and switch between MM/MC or need to have separate inputs?
Because I’m planning to start buying some things and black friday is around the corner
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