The Well Tempered Master Clock - Group buy

[Deleted member 537459]

all this is going off topic, however I have tried to explain it in my own way after a couple of years of rehearsal and counter rehearsal, blind rehearsals in various implants with different ears, probably not existing in rational speech. but wrapped up and in thick audio, numbers and measurements aren't everything.
For all clarification we can send pm

 

[gionag]

that's my point too...

- trust your hearing but don't rationalize what you hear -
(... just because sometimes these attempts are rather clumsy)

I don't need more insights, thanks, back ON-T, sorry

 

[stephen1212b]

Could someone please point me to a part number from Mouser or Digikey for the proper SMA connectors and jumper cables to tie all of this together? Asked another way what is the best way to mount the squaring circuit "adding pins?" and to feed it from the new clocks.

 

[andrea_mori]

I attach a few pictures extracted from the user's manuals.

I suggest RF assembled coaxial cables from RfSupplier or from eBay like the following
RG400 SMA Male to SMA Male Double Shield Coaxial Cable PICK LENGTH RF USA Lot | eBay

 

[stephen1212b]

Thanks Andrea! I can't wait to hear their effect.

 

[sumire]

Hello Andrea,

I use the U.FL connector on STS-SX and STS-DX to connect to TWTMC-DBM.
What do you recommend for UFL to SMA cables?

Thank you

 

[andrea_mori]

I suggest RfSupplier
SMA Male to U.FL Jack Cable Using 1.37mm Coax, RoHS

 

[Markw4]

One can also use adapters, such as: https://www.mouser.com/ProductDetail/Linx-Technologies/ADP-SMAM-UFLF?qs=1sbE9T7hb3YYN6C6S11nMQ==

 

[wlowes]

Thanks! Great prices at rfsupplier. Just ordered custom cables for $20. Same in Canada at least $100. 40 day delivery or refund. Works for me!

 

[Bartb]

I added another document (part VII) that explains how to connect oscillators, frequency doublers and sine to square converters to Ian's FifoPi.

There are 2 options to feed the FifoPi with 22.5792 and 24.576 MHz.

The first is:
- TWTMC-DRIXO 22.5792 MHz
- TWTMC-DRIXO 24.576 MHz
- TWTMC-STS-SX
- TWTMC-STS-DX
- TWRPS-UGL

The second is:
- TWTMC-DRIXO 5.6448 MHz
- TWTMC-DBM 5.6448 Mhz to 11.2896 MHz
- TWTMC-DBM 11.2896 Mhz to 22.5792 MHz
- TWTMC-DRIXO 6.144 MHz
- TWTMC-DBM 6.144 Mhz to 12.288 MHz
- TWTMC-DBM 12.288 Mhz to 24.576 MHz
- TWTMC-STS-SX
- TWTMC-STS-DX
- 2 x TWRPS-UGL

Hi Andrea,
is it correct to say that (considering that fifoPI will work with a 5.6448MHz clock) one could simply choose:

- TWTMC-DRIXO 5.6448 MHz


and have the best noise figures?


Am I on time for the GB ?
Thanks

 

[andrea_mori]

Hi Andrea,
is it correct to say that (considering that fifoPI will work with a 5.6448MHz clock) one could simply choose:

- TWTMC-DRIXO 5.6448 MHz


and have the best noise figures?


Am I on time for the GB ?
Thanks

Hi,

you can run the FifoPi with a single TWTMC-DRIXO 5.6448 MHz but you need at least the sine to square converter board (TWTMC-STS- SX or TWTMC-STS-DX).
Finally you need a clean power supply 12 to 18 VDC (16-17 VDC recommended).

Now I have no 5.6448 MHz crystals, I should receive them at the end of May.
I ordered a few more pieces, so you are in time for the next delivery at early June.
If you are interested please send me the filled order form.

 

[dddac]

@ Bartb

may be good to mention, with the 5,6448 you will only be able to play 44.1 (CD red book tracks)

 

[Bartb]

@dddac Thanks for mentioning that !
44.1Khz... more than enough

 

[Bartb]

Hi,

you can run the FifoPi with a single TWTMC-DRIXO 5.6448 MHz but you need at least the sine to square converter board (TWTMC-STS- SX or TWTMC-STS-DX).
Finally you need a clean power supply 12 to 18 VDC (16-17 VDC recommended).

Ok.
Was thinking about 5x Lifepo4 =16.5V

Now I have no 5.6448 MHz crystals, I should receive them at the end of May.
I ordered a few more pieces, so you are in time for the next delivery at early June.
If you are interested please send me the filled order form.

Interested. I will wait, no problem

The order form is the excel sheet in Post 1 ? Or is there another Post to download from?
Thanks

 

[andrea_mori]

Yes, 5x Lifepo4 are perfect, exactly what we are using to power the oscillator.

The order from is at post #883
The Well Tempered Master Clock - Group buy

 

[wlowes]

Bartb, I too decided to run only 44.1 on my system. I am using a single 5MHz WTMC with the FIFOPi and the combination is excellent. With battery power you should have the best possible. In my case, everything a TDA1541a DAC could have been in 1990. Except for the Rpi, everything in my system is from 40 years ago. Amazing how good Redbook can sound with this clock/FIFO.

 

[A123]

I have the same Redbook, 5.6448 MHz -only FiFoPi requirements.

I may be interested too to jump off the deep end if you have a small surplus...

 

[andrea_mori]

I ordered 3 more 5.6448 MHz crystals and finished boards, 2 of them are virtually gone (reserved from a couple of members, I'm waiting for the filled order form).

So 1 pcs left at early June.

 

[Bartb]

Bartb, I too decided to run only 44.1 on my system. I am using a single 5MHz WTMC with the FIFOPi and the combination is excellent. With battery power you should have the best possible. In my case, everything a TDA1541a DAC could have been in 1990. Except for the Rpi, everything in my system is from 40 years ago. Amazing how good Redbook can sound with this clock/FIFO.

Incidentally I have a very similar setup but with 4xTDA1543 !

I don't want to open a can of worms here so I will just say that our Dutch friends knew a thing or two about audio

 

[A123]

I ordered 3 more 5.6448 MHz crystals and finished boards, 2 of them are virtually gone (reserved from a couple of members, I'm waiting for the filled order form).

So 1 pcs left at early June.

It's okay if I miss out, I can wait for the next GB as I only have 1% knowledge in these products.

If you do have 1 left, please reserve 5.6448 MHz and finished board. I can learn on the go without researching.

I will start filling out the order form. But it's perfectly fine if you can't make it happen.