BLF574 Power Amplifier 600w does this look any good?

[Elopid]

Hi there all, I recently found a nice bargain for just £100 on eBay!
https://www.ebay.co.uk/itm//133502324188
Unfortunately it was the last one for sale so I very quickly smashed the buy it now button and here it is...
Although it was being sold as for FM broadcast I can't help noticing on both of the boards it says "225MHz"
Obviously I will need a decent LPF but do you think this will be any good? I am worried it's designed for the much higher frequency but as there is no 225MHz LPF will it work on the FM broadcast band??
Hopefully it should work OK, what do you guys think?

600w amp 1.jpg

600w amp 2.jpg

600w amp 3.jpg

600w amp 4.jpg

[yellowbeard]

That looks to be the broadband design from the BLF574 datasheet which is 225MHz. There is an 88-108 design for that tranny - search AN10714 - it's not the same. You will need a filter or your second harmonic will be humongous.

[Electronically]

Yea It can do between 10 to 500mhz. but I would recommend lpf for final stage

Sent from my AMN-LX9 using Tapatalk

[Elopid]

Thanks for the replies guys. Yes sorry for any confusion about LPF's, when I said "Obviously I will need a decent LPF but do you think this will be any good?" I meant I would only use it with an LPF if connected to an antenna.
I am hoping to test it soon into a dummyload without LPF and if it's working ok then I will add a 1kW LPF.
I was just worried that this board was only for use around the 225MHz band and wouldn't work on the FM broadcast band.
Thanks for clearing this up.
I will post my results after testing in the next few weeks.