FT-991A Fan mod

[Alan Pilot]

Anybody done this mod recommend a replacement fan. (60x25)..
The one i see mentioned a Sun?????? is not available well i can't find one to buy in the uk.
Any help.
Thanks.

[Auldgeek]

I no longer own my 991A, but a quick Google and brief read of some QRZ forum discussions on this, I found the link to a UK supplier of the Sunon fan outlined in the modification.

https://uk.rs-online.com/web/p/axial-fans/1356902

Link to discussion on QRZ.

https://forums.qrz.com/index.php?thread ... od.665198/

The Sunon fan is mentioned at the bottom of page 1. However, there's no reason why you can't fit another make. Key is to ensure the airflow is good enough, the fan has a lower noise level and it doesn't draw more current than the factory fitted Panasonic.

Good luck...

[Alan Pilot]

Thanks for that one.
I did find it there but on back order no idea how long it would take to get one from them.

[Auldgeek]

Thanks for that one.
I did find it there but on back order no idea how long it would take to get one from them.

RS are quoting 12th April dispatch.

[Alan Pilot]

Thanks again.
Will get on to them in the morning.

[Auldgeek]

Thanks again.
Will get on to them in the morning.

You're welcome
Let me know how you get on. Fan noise can drive you potty.
I had to do the same to a power supply that had a built-in jet turbine for a cooling fan!

[Alan Pilot]

Auldgeek
I found this one last night and looks to be about the same as the recommended Sunon i think.
Only just noticed it doesn't show the link i posted but this is the one i found on amazon.
Sunon EE60251S11000U999

[Alan Pilot]

bay link to the same fan.
https://www.ebay.com/itm/233391704392

[Auldgeek]

Auldgeek
I found this one last night and looks to be about the same as the recommended Sunon i think.
Only just noticed it doesn't show the link i posted but this is the one i found on amazon.
Sunon EE60251S11000U999

Think this the fan you're looking at..

https://www.amazon.co.uk/dp/B07ZBQXD83/ ... ZCJWNDWXGW

At 27dba, it's mightily quiet. Slide bearing too, so it should be reliable.

[Alan Pilot]

That is the one yes.
When i put the link in it didn't show in the post.
I bought one so we will see and if it is ok might just buy another as a spare.
Funny thing is they where £7 when i bought it soon put the price up.

[Alan Pilot]

Got the fan and only tested it on 12v and boy does it move some air but that is flat out.
Going to give it a go but in a day or so got man flu at the moment lol.

[Pluskat]

I have changed all the fans in my radio's and power supply's.
I only use Noise blocker fans....take a look at these fans.

[Alan Pilot]

I had a look at the noise blocker fan but the specs where way out.
Wattage is 2.8 but radio fan is 1.5?.
CFM is too low on them as well.
Thanks anyway might use them in a power supply sometime.