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Old 20th August 2013, 03:08 AM   #701
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Location: Pune
Quote:
Originally Posted by mark28new View Post
Where do I buy a bench top power supply in mumbai ?
Lamington road is the right place.
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Old 20th August 2013, 04:19 AM   #702
Roushon is offline Roushon  India
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Join Date: Sep 2004
Location: Mumbai (Bombay)
Quote:
Originally Posted by mark28new View Post
Where do I buy a bench
top power supply in mumbai ?
I know it will not help you, but in case, I just completed (two days back)
building a (hefty) bench top power supply: +-1.5v to
+-32.5v, 3Amp, regulated (LM350 (3Amp version of
LM317)). I should have had done this long long back, but
was lazy so far. If you need the PCB design then let me
know I will post the pdf of the actual size PCB.

Roushon.
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Old 20th August 2013, 04:32 AM   #703
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Join Date: Jul 2003
Location: Dona paula, Goa
Quote:
Originally Posted by mark28new View Post
Where do I buy a bench top power supply in mumbai ?
Have you visited Bhendi Bazaar anytime.

Not for Mumbai, but if you travel to Gujarat and are near to Alang, go there. Many things removed from the ships are sold there.

Gajanan Phadte

Last edited by gmphadte; 20th August 2013 at 04:36 AM. Reason: added last line
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Old 20th August 2013, 05:02 AM   #704
viki_v2 is offline viki_v2  India
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Location: India (Mumbai)
Quote:
Originally Posted by Roushon View Post
Dear Masood,
I know you are looking for this for at least
two years now in this forum. I already told you before that
I use toner transfer method and have no idea about photo
resist method. You can ask Viki.

Best wishes
Roushon.
Photo resist film method is very easy and time saving method for making professional grade PCB (you will need good quality copper Laminate) 1.6mm laminate is best to start.

Also it is cheap to use.

Send me a pm with complete postal address I will send some film.
All you will need is a small UV box with at east 8" 0r 10" uv lights.
Dark room and some patience.
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Old 20th August 2013, 05:52 AM   #705
Roushon is offline Roushon  India
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Join Date: Sep 2004
Location: Mumbai (Bombay)
Quote:
Originally Posted by viki_v2 View Post
Photo resist film method is very easy and time saving method for making professional grade PCB (you will need good quality copper Laminate) 1.6mm laminate is best to start.

Also it is cheap to use.

Send me a pm with complete postal address I will send some film.
All you will need is a small UV box with at east 8" 0r 10" uv lights.
Dark room and some patience.
Hi Viki!
I am sure there are people who will be interested
in your offer. I am quite happy with toner transfer method.

Roushon.
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Old 20th August 2013, 06:22 AM   #706
Roushon is offline Roushon  India
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Join Date: Sep 2004
Location: Mumbai (Bombay)
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Originally Posted by jayadev View Post
Yes it does.

Honestly I must say one of the most incredible electronic gadget I have ever bought.

My useage is so far only upto 1 channel and I tracked oscillations upto 50 mhz in my amplifiers.

Sadly Iam not yet skilled enough to use it like a pro, I have to keep a calculator handy.

There are lot of features which are still alien to me.
Hi Jayadev,
Where did you buy and how much you
paid for the scope?

Thanks
Roushon.
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Old 20th August 2013, 06:38 AM   #707
viki_v2 is offline viki_v2  India
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Quote:
Originally Posted by Roushon View Post
Hi Viki!
I am sure there are people who will be interested
in your offer. I am quite happy with toner transfer method.

Roushon.
You have mastered the toner transfer method, so you can make pcbs with less efforts, But all this has happened after spending considerable amount of time, effort and money to reach a working conclusion not counting the no of miles you would have traveled searching.

If it is fine with members here I would suggest a group buy giving complete solution. Pcb-Photoresist film-Developer-Etchant.
It will save many diyers time and money.
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Old 20th August 2013, 08:12 AM   #708
jayadev is offline jayadev  India
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Location: Kerala
Quote:
Originally Posted by viki_v2 View Post
You have mastered the toner transfer method, so you can make pcbs with less efforts, But all this has happened after spending considerable amount of time, effort and money to reach a working conclusion not counting the no of miles you would have traveled searching.

If it is fine with members here I would suggest a group buy giving complete solution. Pcb-Photoresist film-Developer-Etchant.
It will save many diyers time and money.
One of the main concern with photoresist is,it has an expiry date which is 6 month from manufacturing I guess.


I bought my scope from bangalore,A preused Tek2465 approx Rs.35k.
CALIBER INSTRUMENT TECHNOLOGY
# 1163 1st floor 5th cross 14th main
Prakashnagar Bengaluru-21

But I am facing some problem in it lately. with first push to on it wont fire(Start) all the leds on front panel remains lit but no trace onthe screen. I have to fire it again 2 or 3 times intermittently to get it working.
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Last edited by jayadev; 20th August 2013 at 08:32 AM.
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Old 20th August 2013, 08:14 AM   #709
viki_v2 is offline viki_v2  India
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Quote:
Originally Posted by jayadev View Post
One of the main concern with photoresist is,it has an expiry date which is 6 month from manufacturing I guess.
Shelf life is 6 months. But if stored properly under 23degrees it longs about 2 years.
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Old 20th August 2013, 07:43 PM   #710
masood is offline masood  India
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Location: fatehpur
dear sir,
from wher i purchase sleek/manual electronic 0.50 to 1 mm drill machine?
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