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Author Topic: EMTX  (Read 1501 times)

Offline QRP

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EMTX
« on: October 24, 2021, 1327 UTC »
The EMTX: How to build an 8 component 40/30 meter QRP emergency transmitter

https://swling.com/blog/2021/01/the-emtx-how-to-build-an-8-component-40-30-meter-qrp-emergency-transmitter/

How to build a PC keyer and AM modulator for the EMTX emergency transmitter

https://swling.com/blog/2021/01/how-to-build-a-pc-keyer-and-am-modulator-for-the-emtx-emergency-transmitter/

//QRP

Offline QRP

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Re: EMTX
« Reply #1 on: October 25, 2021, 0737 UTC »

Is it possible to replace 2SC2078 with an IRF510
or do these two work in different ways?

Offline Charlie_Dont_Surf

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Re: EMTX
« Reply #2 on: October 25, 2021, 2119 UTC »
The 2SC2078 is an NPN BJT. The IRF510 is an N-channel FET. They are not even close to the same thing.
I don't STRETCH the truth.

"Every minute I spend in this room, my signal gets weaker.
Every minute Charlie squats in the bush, his signal gets stronger."

Offline QRP

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Re: EMTX
« Reply #3 on: October 27, 2021, 0749 UTC »
The 2SC2078 is an NPN BJT. The IRF510 is an N-channel FET. They are not even close to the same thing.

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