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The Well Tempered Master Clock - Group buy

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#421
tubo said:
gabor80 said:
Yes, with 45/49 MHz clocks at the moment, but I ve got the 5/6 MHz Sc-cut crystals recently, the next project will be these crystals to start working.

The Ian's Fifo min. multiplier is 128X, so with 5/6 MHz it will just work on 44/48 KHz.[/QUOTE

Please keep us posted on your progress, im very interested on how you will implement the clocks to the fifo. Im not really sure how to proceed with my project..

You’re using fifo v1 or fifo II?
Click to expand...


I use Fifo II. with dual clock board. So Its not a big issue to connect the driscoll clock boards to Ians dual clock board, It need to connect to the right place the clock signal input, and ground.

The 5/6 Mhz project will find out and realize by Andrea (clock PCB, parts etc.), I m just a simple user (I have just crystals yet).

But we think these clock boards will lower jitter (and phase noise) like higher freq crystals, so the music would be more precise, more musical. But in practise time will tell this...
Click to expand...
 
#433
Would like to join this group buy Andrea. Heard Sligolad's dac with clocks and sounds great my dac which is part of the same build without the clocks whilst sounding great is not up to the quality we heard on Pearse's dac. Is it possible to have it assembled or is it just parts?
 
#437
#438
I'm sure there is a straightfwd answers to this SOMEWHERE in this long thread. But when your note:
"11.2896 MHz 3rd overtone MOQ 15 pcs Eur 38.00 each"
Do you mean there are 15 separate crystals in a package that costs Eur 38.00 or is each crystal Eur 38.00?
What's the current price?
 
#440
Starting the new GB

While we are working on the last revision of each device I'm starting the new GB.

Those who are interested can join the GB immediately to reserve crystals, bare PCB and finished boards.

The final price of each items will be published in a appropriate Order Form as soon as the last revision will be ended. BTW, the final prices will not differ much, since there could be minor update on each circuit, only a few components.
All the prices are expressed in Euro VAT excluded (where applicable), 22% in EU countries.

About the crystals there is a MOQ to be reached for each type and frequency. If the MOQ requested from the manufacturer will be not met for some frequency/type these items will be deleted from the GB.

The new GB includes:
- New Driscoll XO (SC-Cut crystals from 5.6448 MHz up to 24.576 MHz)
- New Differential XO (SC-Cut crystals from 5.6448 MHz up to 24.576 MHz)
- New Pierce XO (AT-Cut crystals from 5.6448 MHz up to 98.304 MHz)
- New Frequency Doubler (5/6 MHz to 11/12 Mhz, 11/12 MHz to 22/24 Mhz, 22/24 MHz to 45/49 Mhz, 45/49 MHz to 90/98 Mhz)
- New entry level Pierce gate based XO (AT-Cut crystals 22.5792 MHz and 24.576 Mhz only)
- New Sine to Square Converter (all new XO except the Pierce gate based are sine wave output)
- New Low Noise Regulator to supply all the above XO (except the Pierce gate based)
- old designs bare PCB

Crystals:
Type MOQ Price (each ex. VAT)
AT 5.6448 MHz fundamental 15 35,00
AT 6.1440 MHz fundamental 15 35,00
AT 11.2896 MHz fundamental 10 29,00
AT 12.2880 MHz fundamental 10 29,00
AT 16.9344 MHz fundamental 10 29,00
AT 22.5792 MHz fundamental 10 29,00
AT 24.5760 MHz fundamental 10 29,00
AT 25.0000 MHz fundamental 10 29,00
AT 45.1584 MHz 3rd overtone 10 30,00
AT 49.1520 MHz 3rd overtone 10 30,00
AT 90.3168 MHz 5th overtone 15 36,00
AT 98.3040 MHz 5th overtone 15 36,00
SC 5.6448 MHz 3rd overtone 15 73,00
SC 6.1440 MHz 3rd overtone 15 73,00
SC 11.2896 MHz 3rd overtone 15 41,00
SC 12.2880 MHz 3rd overtone 15 41,00
SC 22.5792 MHz 3rd overtone 10 41,00
SC 24.5760 MHz 3rd overtone 10 41,00
SC 45.1584 MHz 3rd overtone 10 41,00
SC 49.1520 MHz 3rd overtone 10 41,00
SC 90.3168 MHz 3rd overtone 15 55,00
SC 98.3040 MHz 3rd overtone 15 55,00

Bare PCB (old designs):
Code Description Price (each ex. VAT)
TWTMC-C Colpitts-Clapp XO 4,00
TWTMC-D Emitter cupled XO 4,00
TWTMC-P Pierce XO 4,00
TWTMC-D&D Daughter board PCB 10,00
TWTMC-OVN OCXO Oven 4,00
TWTMC-DIL DIL adapter 4,00
TWTMC-AIO PCB All in One 7,00
TWRPS-pp micro PCB Push-pull regulator 15V/6V/5V/3V3 SMD 7,00

Bare PCB (new designs):
Code Description Price (each ex. VAT)
TWRPS-pp Push-pull regulator 12V/15V TH 11,00
TWRPS-UGL Linear regulator 12V 11,00
TWTMC-DRIXO New Driscoll XO 18,00
TWTMC-EXO New Differential XO 18,00
TWTMC-PXO New Pierce XO 18,00
TWTMC-DBM Frequency doubler 16,00

Finished boards:
Code Description Price (each ex. VAT)
TWRPS-UGL-F Linear regulator 12V 70,00
TWTMC-DRIXO-F New Driscoll XO (without crystal) 120,00
TWTMC-EXO-F New Differential XO (without crystal) 100,00
TWTMC-PXO-F New Pierce XO (without crystal) 90,00
TWTMC-DBM-F Frequency doubler 80,00
TWTMC-PPG New Pierce entry with HC-49/U crystal 22,00
TWTMC-STS-SX Sine to square converter (SX) 16,00
TWTMC-STS-DX Sine to square converter (DX) 16,00

Transformers kit (diy):
Code Description Price (each ex. VAT)
TWTMC-DRIXO-XFMR New Driscoll XO transformers kit 25,00
TWTMC-EXO-XFMR New Differential XO transformers kit 28,00
TWTMC-PXO-XFMR New Pierce XO transformers kit 25,00
TWTMC-DBM-XFMR Frequency doubler transformers kit 21,00

Individual measurement:
XO type Description Price (each ex. VAT)
DRIXO-EXO-PXO Measurement service (1 hour phase noise plot) 25,00

If you are interested please join the GB adding yourself to the list.
 
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