[OZAPRS] 20m

[Ray Wells]

The pre-driver, a TO5 device, probably a 2N4427 (maybe a 2N3553) is 
getting too hot to touch, without drive. It's a simple resistive divider 
in the base circuit and I suspect either the transistor has gone leaky 
base-collector, or the 180 ohm base pull-down resistor has added lots 
more zeros to its value :-)

I have spares of either type transistor so it becomes a time thing to 
fix it.

Ray vk2tv

Phillip wrote:
> Hi Ray,
>
>                  Bit sad to hear this, hope its nothing to major. Good luck
>
>
>
> Phillip
>
> ZL2TZE 
>
>  
>
> -------Original Message-------
>
>  
>
> From: Ray Wells
>
> Date: 3/04/2009 1:58:14 p.m.
>
> To: Australian APRS Users
>
> Subject: [OZAPRS] 20m
>
>  
>
> I figured out what to about 20m.
>
>  
>
> My 40m radio for bbs forwarding, which gets hours of work every day, has
>
> failed so the TS430 is now back on 40m, and 20m is no more until I can
>
> find time to fix the other radio.
>
>  
>
> Ray vk2tv
>
>  
>
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