I have to purchase DC Power Supply 1. Topward 6303D, 2. Caltron PR 3303SE which one is best

Hi Dear All,

I have to purchase a used power supply. I have two options,

1. Topward 6303D

2. Caltron PR 3303SE

I have downloaded the operating manual of S. No. 1 but couldn't find that of S. No. 2. I need durable, high quality and easily repairable out of these two options. Price is not an issue.

I will be highly obliged if you guide me to choose the right one.

Thank You.

Top Replies

baldengineer over 2 years ago +3

Both are generic OEM designs. I would not expect to find detailed information on either. This means one company designed it and sells it under multiple brand names. Sometimes there are minor variations…
michaelkellett over 2 years ago +1

Take a look at the Rigol DP832A. Similar price (in UK) to Topward 6303D and similar power output (2 x 30V @ 3A, 1 x 5V @ 3A). DIY repairing of high end power supplies (Keysight, Rohde & Schwarz etc…
Jan Cumps over 2 years ago in reply to Shahzad1234 +1

Indeed, looks like it's only available via import or dropshippers.

Parents

michaelkellett over 2 years ago

Take a look at the Rigol DP832A.

Similar price (in UK) to Topward 6303D and similar power output (2 x 30V @ 3A, 1 x 5V @ 3A).

DIY repairing of high end power supplies (Keysight, Rohde & Schwarz etc) is never simple because they don't publish schematics, but their stuff tends to keep working.

With cheaper generic equipment such details often leak out, so it might be easier to maintain a no-name type supply yourself.

The Rigol is in between, decent quality and a close to low end price - I have one myself and it's been reliable. It does come with proper documentation and Ethernet, USB and RS232 ports as standard.

www.rigol-uk.co.uk/.../

MK
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Shahzad1234 over 2 years ago in reply to michaelkellett

Thank you. Sir, But it is not available in our country.
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Jan Cumps over 2 years ago in reply to Shahzad1234

What country is it?
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Shahzad1234 over 2 years ago in reply to Jan Cumps

I live in Pakistan.
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Shahzad1234 over 2 years ago in reply to Jan Cumps

I live in Pakistan.
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Jan Cumps over 2 years ago in reply to Shahzad1234

Indeed, looks like it's only available via import or dropshippers.
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shabaz over 2 years ago in reply to Jan Cumps

The currency has plummeted there (even more than usual) in the past few months, by 25% or more compared to a couple of months ago. And it's so painful even shipping from overseas without paying off all sorts of fees. Now would be a good time for the OP to ask any friend or family member traveling from another country to buy from another country as a favor.
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