[AMRadio] re: Ranger driving Thunderbolt
Darrell, WA5VGO
hbrnut at earthlink.net
Mon Apr 7 19:54:39 EDT 2003
This sounds like a good plan. Simply reducing the loading on the 6146 will
probably cause excessive screen grid dissipation.
Darrell, WA5VGO
At 05:19 PM 4/7/2003 -0400, you wrote:
>The way I reduce power out on my Ranger to drive an amp is not exactly the
>right way, but it works very well. I know of several other people using the
>very same method, reduce the screen voltage.
>I reduce my normal screen voltage with a variable resistor controlling a
>transistor. Turn the screen voltage up and load the Ranger as normal and
>then adjust the screen voltage until the desired power out is obtained.
>Power out is adjustable from full power down to 5 watts or so, I normally
>run my Ranger at 10 watts to drive an amp. The Ranger is capable of a lot of
>positive modulation peaks running like this.
>I have observed no ill affects from doing this, your mileage may vary.
>Mike / WN3B
>
>
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