varitable power output ubitx
Richard E Neese
I am swapping out the mosfets like suggested and I am looking for a way to do h/m/l power so I can use a 10m to 2m transverter and a amp .
but would require the power to be less then 5 to run the transverter and or the amp. wo I am looking at a 3 point rotary switch but how to put it in line is the question. this would give more controll.
the mosfets I am changing to are RD16HHF1 TO-220 Mitsubishi HF RF Power MOSFET
giving more power and better performance
Check ubitx.net on power control. I posted a circuit to do it by band using relays but you could use a switch i suppose. Just make sire the leads are shielded.toggle quoted messageShow quoted text
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On May 1, 2018, at 10:30 AM, Richard E Neese <kb3vgw@...> wrote:
Alternately, check out this thread:toggle quoted messageShow quoted text
Zero new hardware required.
I have not tried it.
I'm curious if anyone has found reasons not to do it this way.
On Tue, May 1, 2018 at 10:54 am, K9HZ wrote:
Check ubitx.net on power control. I posted a circuit to do it by band using relays but you could use a switch i suppose. Just make sire the leads are shielded.