Bad Im have 2xirfp260n at 45VDC/30A Band: 3.5Mhz = input 2w - out 300w / 7Mhz = Input 4w - Out 180w / 14Mhz = Input 8W - Out50w / 21Mhz = Input 8W - Out 10w / 28Mhz = Input8w - Out 5W / At 3.5Mhz it is possible to get 500-600W with 5W input, but the transistors explode quickly.....😁 I forgot I have an input attenuator on 1,8Mhz ~ 9dB , 3,5Mhz ~ 6dB , 7Mhz ~ 3dB and 14-28 no ATT...
I have gotten 900w on 4 irfp260n at 40v. And 1500w at 50v now it did pop a fet at 50v probably due to internal temperature so it's possible to get 1000w safely I talk on mine daily on Am it will dead key 250w swing too 500w average and 1000w pep. on SSB 900 w pep with 20w drive sandwich the FET in between a larger heatsink bottom and a smaller on top or across the top for maximum cooling I did this with 4 fets 2 parallel per side of binocular transformer and also with done this with 4 fets 1 per side of a binocular and daisy chain the binocular wire from 1 to the other with 1.5 turns per binocular to a 53pf capacitor Keep your supply voltage 40v at 50v it will do more power but not last long keep your fets matched gate capacitance and voltage use a test to match
Did you ever get the irf250 working I have 10 I want to make a amp I tried the irf260 and had good results with 2 and now I going to build a 10 MOSFET do you have any information or things to watch for
@@kevindrury8390 I have playing around with irf260 I see some people getting a lot more power than me I'm not sure why I have watched every video I can to see if I missed anything it doesn't help that I can only speak English and most of the video are not English if you have any information that may help would be appreciated
@@kevindrury8390 ok I built a amp using itfp260n now I don't have a lot of drive from the radio AM 15w SSB 25/30w so I increase the dissipation voltage 30 volts and now I'm getting 550w to 600w from 2 irfp260n so I believe to achieve the same kind of output at 14vdc you need a bigger input transformer on the amp and a radio that can transmit 100w SSB so I'm going to try this theory when part come in and my bias volts is set to 1.2vdc
Mantab boss. Itu bisa lebih besar lagi. Saya udh coba 4 irek alhamdulilah bisa keluar 1000 Watt lebih.
Hebat anda, bbrp volt?
Tnp skema, ilmu susah diterima pemula
good!! from HL5 ^^
What was the total bands usable? 10m through 160m --- 28mhz to 1.5mhz?
Bad Im have 2xirfp260n at 45VDC/30A Band: 3.5Mhz = input 2w - out 300w / 7Mhz = Input 4w - Out 180w / 14Mhz = Input 8W - Out50w / 21Mhz = Input 8W - Out 10w / 28Mhz = Input8w - Out 5W / At 3.5Mhz it is possible to get 500-600W with 5W input, but the transistors explode quickly.....😁 I forgot I have an input attenuator on 1,8Mhz ~ 9dB , 3,5Mhz ~ 6dB , 7Mhz ~ 3dB and 14-28 no ATT...
I have gotten 900w on 4 irfp260n at 40v. And 1500w at 50v now it did pop a fet at 50v probably due to internal temperature so it's possible to get 1000w safely I talk on mine daily on Am it will dead key 250w swing too 500w average and 1000w pep. on SSB 900 w pep with 20w drive sandwich the FET in between a larger heatsink bottom and a smaller on top or across the top for maximum cooling I did this with 4 fets 2 parallel per side of binocular transformer and also with done this with 4 fets 1 per side of a binocular and daisy chain the binocular wire from 1 to the other with 1.5 turns per binocular to a 53pf capacitor Keep your supply voltage 40v at 50v it will do more power but not last long keep your fets matched gate capacitance and voltage use a test to match
Idle current per mosfet berapa mas,?
19volt itu bias berapa volt bang?
Hard to see what's going on but I did get motion sickness add a still photo to the video
Boleh pesan om
I have some irfp250, I would like to make one like this out of them
, thanks very nice
Did you ever get the irf250 working I have 10 I want to make a amp I tried the irf260 and had good results with 2 and now I going to build a 10 MOSFET do you have any information or things to watch for
@@Davidsmith218 I haven't done anything with yet. Sorry
@@kevindrury8390 I have playing around with irf260 I see some people getting a lot more power than me I'm not sure why I have watched every video I can to see if I missed anything it doesn't help that I can only speak English and most of the video are not English if you have any information that may help would be appreciated
@@kevindrury8390 ok I built a amp using itfp260n now I don't have a lot of drive from the radio AM 15w SSB 25/30w so I increase the dissipation voltage 30 volts and now I'm getting 550w to 600w from 2 irfp260n so I believe to achieve the same kind of output at 14vdc you need a bigger input transformer on the amp and a radio that can transmit 100w SSB so I'm going to try this theory when part come in and my bias volts is set to 1.2vdc
@@Davidsmith218 thanks for the info. Hopefully I will get back to playing with them soon
Your CQ is now in Japan.
Your signal is 54.
Terima kasih mas sudi upload utk berkongsi bersama rakan2.... 9w2yzi
sama sama om de YF3BWY 73
Fungsinya apa mass
Alat pemancar itu mas , fungsinya untuk menambah daya pemancar
besar amat!!, mau balapan ya?
No wa nya om
Eu não entendo nada que vc fala