So here is one that I have been pondering over in my mind... These mosfets (erf2030) by ekl that seem to becoming fairly popular latly have interested me since they came out a while back.
This is my thoughts on the subject.... In most circumstances fets are used in an exact oposet way than how they are used in a cb. In a standard cb the final runs off of low voltage and high current....... pretty much the exact oposet way that fets are used in most circuits--- alot of the time fets are used with a high voltage low current situation.
Although they do work with low volts high amps, there seems to be a problem with the need for alot of drive on the fet to get any power out. Like in a standard Cobra 29... usually the outcome of a final switch to FETS is a lower carrier high modulation outcome--- and the stuggle seems to be getting carrier power out of these--
I'm sure everyone has alot of different mods for these for bringing the carrier up some--
My idea is to run the fet like many others are.... higher voltage lower current
Basically stepping up the voltage after the driver, rematching the input impediance and taking the current draw/volt draw off the audio IC and adding it from another source ect ect.
The main idea is to try running the erf 2030 and final rf amp circuit of a cobra 29 off higher volts lower current like how alot of fets are used. I am very curious as to what the carrier/ modulation output would be.
This is just an idea I've been playing around with in my head for a bit ...I'm curious if anyone else has any thoughts or idea about using these fets this way
This is my thoughts on the subject.... In most circumstances fets are used in an exact oposet way than how they are used in a cb. In a standard cb the final runs off of low voltage and high current....... pretty much the exact oposet way that fets are used in most circuits--- alot of the time fets are used with a high voltage low current situation.
Although they do work with low volts high amps, there seems to be a problem with the need for alot of drive on the fet to get any power out. Like in a standard Cobra 29... usually the outcome of a final switch to FETS is a lower carrier high modulation outcome--- and the stuggle seems to be getting carrier power out of these--
I'm sure everyone has alot of different mods for these for bringing the carrier up some--
My idea is to run the fet like many others are.... higher voltage lower current
Basically stepping up the voltage after the driver, rematching the input impediance and taking the current draw/volt draw off the audio IC and adding it from another source ect ect.
The main idea is to try running the erf 2030 and final rf amp circuit of a cobra 29 off higher volts lower current like how alot of fets are used. I am very curious as to what the carrier/ modulation output would be.
This is just an idea I've been playing around with in my head for a bit ...I'm curious if anyone else has any thoughts or idea about using these fets this way