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Viewing topic "Yamaha adapter PA-3B"

     
Posted on: January 15, 2024 @ 06:54 PM
johpat
Total Posts:  61
Joined  10-08-2003
status: Experienced

Hello,

Can i use an Yamaha adapter PA-3B for my moxf 8. In the user manuel i read PA-150.

I use now not an original but saw an original yamaha on a marketplace.

Regards
John

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Posted on: January 16, 2024 @ 02:35 AM
- Henry -
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Total Posts:  161
Joined  10-30-2011
status: Pro

Hi John,

johpat - 15 January 2024 06:54 PM

Can i use an Yamaha adapter PA-3B for my moxf 8. In the user manuel i read PA-150.

No!

The output voltage and polarity is the same (12V DC, center positive) for both units, but the PA-3B only has a rated output current of 700 mA, which is way too low. If the MOXF starts at all, it may not be stable. The PA-150B is rated for 1500 mA (1,5 A), so look for an adapter of that capacity or more.

- H -

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Posted on: January 16, 2024 @ 02:59 AM
johpat
Total Posts:  61
Joined  10-08-2003
status: Experienced

Hello Henry,

Thank you for your answer. I also thought that the output of 700 mA is too low for my MOXF8. I’m going to buy a 1500mA for the MOXF8

But strange for the moxf6 (which I bought used) I got a 700mA. Does he have to go to 1500mA?

John

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Posted on: January 16, 2024 @ 04:45 AM
- Henry -
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Total Posts:  161
Joined  10-30-2011
status: Pro

A PSU’s rated output tells us how much current it can deliver continously and safely, without e.g. overheating in test conditions. Most PSUs will deliver more than their rated output when connected to equipment that draw more power. When they do, however, heat starts to build up, and so does the risk of damage.

I believe the MOXF6 and MOXF8 both used the same adapter, and both are listed as consuming 13 Watts of power (which calculates to about 1100 mA @ 12V). This is probably their maximum power consumption, which typically peaks at startup. The steady-state power consumption is probably a bit lower than 13W, but we don’t know extactly how much.

With the MOXF6/8, a PSU rated for 700 mA will - at least periodically - be operating far outside of its specifications. This is going to shorten its lifespan. If you continue to use it, please keep an eye on its temperature!

- H -

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Posted on: January 16, 2024 @ 05:51 AM
johpat
Total Posts:  61
Joined  10-08-2003
status: Experienced

Thank you Henry for your information!

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Posted on: January 19, 2024 @ 07:39 AM
johpat
Total Posts:  61
Joined  10-08-2003
status: Experienced

Hello Henry,

Can i use this for my moxf6/8

Yamaha PA5
Input 220v 50 Hz~38 w
Output 12V 2A

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Posted on: January 19, 2024 @ 10:00 AM
- Henry -
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Total Posts:  161
Joined  10-30-2011
status: Pro

Assuming that you live in an area with 220V AC wall outlets, and that your suggested PSU has the correct output connector and polarity, then yes, it should work.

- H -

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