Batery powered DIY CNC phono stage

[quad]

I want to add that buying the components like resistors and hardware
stuff locally will definitely save money.

However, with regard to the specified film caps, Panasonic ECQs, they are pretty good.
Changing them to another type/brand will probably alter the
sonic characteristics, and it may take hours of cap rolling to find
good sounding replacements.

 

[omishra]

I want to add that buying the components like resistors and hardware
stuff locally will definitely save money.

However, with regard to the specified film caps, Panasonic ECQs, they are pretty good.
Changing them to another type/brand will probably alter the
sonic characteristics, and it may take hours of cap rolling to find
good sounding replacements.

You are right, that is why I want to look for local market (industrial dealers) which can offer me these same thing. I am sure about resistors (1/4W MFR 1%) except 2 odd values in list. Same time if I get my hands on Panasonic metal Film caps then good. Otherwise, We will be buying from Digikey itself. What me and Sachin exchanged yesterday that I will look for generic parts with require quality in local market first (on Wednesday). Then place order to digikey for remaining.

If you have different opinion then please feel free to raise.

 

[sachu888]

I want to add that buying the components like resistors and hardware
stuff locally will definitely save money.

However, with regard to the specified film caps, Panasonic ECQs, they are pretty good.
Changing them to another type/brand will probably alter the
sonic characteristics, and it may take hours of cap rolling to find
good sounding replacements.

Hi Prasad,

Thanks for reply,so should we buy caps and resisters from Digikey and source other hardware items like battery,RCA,battery strap,Toggle switch locally?

Regards,

Sachin

 

[sachu888]

You are right, that is why I want to look for local market (industrial dealers) which can offer me these same thing. I am sure about resistors (1/4W MFR 1%) except 2 odd values in list. Same time if I get my hands on Panasonic metal Film caps then good. Otherwise, We will be buying from Digikey itself. What me and Sachin exchanged yesterday that I will look for generic parts with require quality in local market first (on Wednesday). Then place order to digikey for remaining.

If you have different opinion then please feel free to raise.

+1, agreed.

Regards,

Sachin

 

[santhosh]

Appreciate the efforts you are putting into this group buy & build. Thanks Guys:cheers:

 

[quad]

You are right, that is why I want to look for local market (industrial dealers) which can offer me these same thing. I am sure about resistors (1/4W MFR 1%) except 2 odd values in list. Same time if I get my hands on Panasonic metal Film caps then good. Otherwise, We will be buying from Digikey itself. What me and Sachin exchanged yesterday that I will look for generic parts with require quality in local market first (on Wednesday). Then place order to digikey for remaining.

If you have different opinion then please feel free to raise.

You folks are on the right track and I agree with the items for local purchase.
The only thing I wanted to verify was about the film caps, and it's
good to know you have it all covered in your plan.
Thanks for the efforts!

 

[sachu888]

Hi all,
I have sent pms everyone that shown an interest on here.PCB's will arrive on Friday.Please confirm your participation in group,PM if I missed someone.
BTW what's everyone planning for CNC case?

Regards,

Sachin

 

[quad]

Sachin/Omishra,

Excellent. Look forward to the pics of the PCBs.

 

[omishra]

Update:
I bought below part locally for 8 sets -

Resistors:
1 X P8.20KCACT-ND / RES METAL FILM 8.2K OHM 1/4W 1% / LED Loading Resistor
4 X P100CACT-ND / RES METAL FILM 100 OHM 1/4W 1% / Gain Resistor - Increased
4 X P150CACT-ND / RES METAL FILM 150 OHM 1/4W 1% / Gain Resistor - Std
2 X P18.0KCACT-ND / RES METAL FILM 18.0K OHM 1/4W 1%/ Input Loading Resistor
2 X P2.20KCACT-ND / RES METAL FILM 2.20K OHM 1/4W 1%/ Noise Blocking Resistor
2 X P200CACT-ND / RES METAL FILM 200 OHM 1/4W 1% / RIAA Resistor
2 X P27.0KCACT-ND / RES METAL FILM 27.0K OHM 1/4W 1%/ RIAA Resistor
2 X P33.0KCACT-ND / RES METAL FILM 33.0K OHM 1/4W 1%/ Input Loading Resistor
2 X P47.0KCACT-ND / RES METAL FILM 47.0K OHM 1/4W 1%/ Input Loading Resistor
2 X P62.0KCACT-ND / RES METAL FILM 62.0K OHM 1/4W 1%/ Input Loading Resistor
2 X P750CACT-ND / RES METAL FILM 750 OHM 1/4W 1% /RIAA Resistor
Capacitors:
4 X BC1084CT-ND / CAP .10UF 50V CERAMIC X7R 10% / Power Supply Filter
4 X 604-1061-ND / CAP ALUM 10UF 35V 20% RADIAL / Power Supply Filter
Accessories:
2 X CP-1413-ND / CONN RCA JACK METAL RED PNL MNT / Cheap RCA Jacks Red
2 X CP-1414-ND / CONN RCA JACK METAL WHT PNL MNT / Cheap RCA Jacks White
1 X 67-1107-ND / LED 5MM RED TRANSPARENT / Std Red LED
2 X ED90105-ND / IC SOCKET 8PIN .300 SOLDER TAIL / Op Amp Sockets
2 X 235K-ND / STRAP BATT ECON 9V T STYLE 4"LD / 9v Battery Connectors
1 X S114-ND / SW TOGGLE DPST 5A SOLDER LUG / On Off Switch.

Sachin will be ordering below from Digikey for 8 sets

Accessories and OP-AMP:
2 X CT2064-ND / SWITCH SPST GOLD 4 SEC / Input Loading Dip Switch
2 X AD823ANZ-ND / IC OPAMP JFET R-R DUAL LN 8DIP / AD823 Op Amps

Capacitors:
2 X P4518-ND / CAP .027UF 50V STACK METAL FILM / RIAA Capacitor
2 X P4519-ND / CAP .033UF 50V STACK METAL FILM / RIAA Capacitor
2 X P4521-ND / CAP .047UF 50V STACK METAL FILM / RIAA Capacitor
2 X P4675-ND / CAP 1UF 50V STACK METAL FILM / DC Blocking
Resistors:
4 X RNF14FTD3K32CT-ND/ RES MF 1/4W 3.32K OHM 1% AXIAL/ Feedback Resistor
4 X 3.83KXBK-ND / RES 3.83K OHM 1/4W 1% METAL FILM/ RIAA Resistor

Final user need to buy this for themselves.
2 X P647-ND / BATTERY IND ALKALINE 9 VOLT


Regards,

 

[sachu888]

Update:
I bought below part locally for 8 sets -

Resistors:
1 X P8.20KCACT-ND / RES METAL FILM 8.2K OHM 1/4W 1% / LED Loading Resistor
4 X P100CACT-ND / RES METAL FILM 100 OHM 1/4W 1% / Gain Resistor - Increased
4 X P150CACT-ND / RES METAL FILM 150 OHM 1/4W 1% / Gain Resistor - Std
2 X P18.0KCACT-ND / RES METAL FILM 18.0K OHM 1/4W 1%/ Input Loading Resistor
2 X P2.20KCACT-ND / RES METAL FILM 2.20K OHM 1/4W 1%/ Noise Blocking Resistor
2 X P200CACT-ND / RES METAL FILM 200 OHM 1/4W 1% / RIAA Resistor
2 X P27.0KCACT-ND / RES METAL FILM 27.0K OHM 1/4W 1%/ RIAA Resistor
2 X P33.0KCACT-ND / RES METAL FILM 33.0K OHM 1/4W 1%/ Input Loading Resistor
2 X P47.0KCACT-ND / RES METAL FILM 47.0K OHM 1/4W 1%/ Input Loading Resistor
2 X P62.0KCACT-ND / RES METAL FILM 62.0K OHM 1/4W 1%/ Input Loading Resistor
2 X P750CACT-ND / RES METAL FILM 750 OHM 1/4W 1% /RIAA Resistor
Capacitors:
4 X BC1084CT-ND / CAP .10UF 50V CERAMIC X7R 10% / Power Supply Filter
4 X 604-1061-ND / CAP ALUM 10UF 35V 20% RADIAL / Power Supply Filter
Accessories:
2 X CP-1413-ND / CONN RCA JACK METAL RED PNL MNT / Cheap RCA Jacks Red
2 X CP-1414-ND / CONN RCA JACK METAL WHT PNL MNT / Cheap RCA Jacks White
1 X 67-1107-ND / LED 5MM RED TRANSPARENT / Std Red LED
2 X ED90105-ND / IC SOCKET 8PIN .300 SOLDER TAIL / Op Amp Sockets
2 X 235K-ND / STRAP BATT ECON 9V T STYLE 4"LD / 9v Battery Connectors
1 X S114-ND / SW TOGGLE DPST 5A SOLDER LUG / On Off Switch.

Sachin will be ordering below from Digikey for 8 sets

Accessories and OP-AMP:
2 X CT2064-ND / SWITCH SPST GOLD 4 SEC / Input Loading Dip Switch
2 X AD823ANZ-ND / IC OPAMP JFET R-R DUAL LN 8DIP / AD823 Op Amps

Capacitors:
2 X P4518-ND / CAP .027UF 50V STACK METAL FILM / RIAA Capacitor
2 X P4519-ND / CAP .033UF 50V STACK METAL FILM / RIAA Capacitor
2 X P4521-ND / CAP .047UF 50V STACK METAL FILM / RIAA Capacitor
2 X P4675-ND / CAP 1UF 50V STACK METAL FILM / DC Blocking
Resistors:
4 X RNF14FTD3K32CT-ND/ RES MF 1/4W 3.32K OHM 1% AXIAL/ Feedback Resistor
4 X 3.83KXBK-ND / RES 3.83K OHM 1/4W 1% METAL FILM/ RIAA Resistor

Final user need to buy this for themselves.
2 X P647-ND / BATTERY IND ALKALINE 9 VOLT


Regards,

Hi Om,
Thanks for buying maximum no of parts locally.It will save a good amount.

Regards,
Sachin

 

[sachu888]

CNC update

Hi all,

Only 5 people have confirmed.I have 5 more boards available for CNC phono, and now locally sourced parts it should below RS 2000/-.I will be getting PCB's tomorrow.I will order remaining parts on Saturday.kindly confirm your interest ASAP.

Regards,
Sachin

 

[captrajesh]

Hi Sachin,

Hope my name is there in that five confirmations.

Regards


Rajesh

 

[sachu888]

Hi Sachin,

Hope my name is there in that five confirmations.

Regards


Rajesh

Yes Sir,you are .

Regards,
Sachin

 

[santhosh]

Hi Sachin,
It was nice talking to you today - a walking talking encyclopedia of turntables you arehyeah:

When do we start rolling?!

 

[sachu888]

Members update

Hi all,

We have 7 confirmed members for this group buy:

Captrajesh
Omishra
Tek
Bhaskar
Santhosh
Gopi
Mithun

Pl let me know if I missed anyone.

Regards,
Sachin

 

[quad]

Sachin, please confirm me for a kit and one extra PCB. Thanks!

 

[gopib]

Sachin and Omishra,

Thanks for the effort you guys are making. I am looking at using this to add a phono stage to my integrated amp, which does not have a phono stage. Ideally I would like to house it in the same amp - may be a challenge..but hope to achieve it. Once i get the kit and comps I will get a better idea...

hands are itching....soldering iron is warmed up

gopi

 

[sachu888]

CNC update

Hi all,

Now,we have 8 confirmed members for group buy.I will be ordering remaining parts on Saturday.

Regards,
Sachin

 

[sachu888]

Sachin, please confirm me for a kit and one extra PCB. Thanks!

Hi Prasad,
Thanks for participation.

Regards,
Sachin

 

[sachu888]

PCB status

Hi all,

There is a delay in PCB making due to some technical fault at manufacturing unit.They promised me to deliver on coming Thursday.I will order remaining parts from Digikey tomorrow.

Regards,
Sachin