Why would this be done? Galaxy DX 88HL

[mr_fx]

I have a Galaxy DX 88HL with some weird mods done to it

47nF cap (mica) added on the middle final between the emitter and ground (or so it looks.)

and the resistor on the back side of the board (under IC9) has been changed from a 1k ohm to a 220ohm... why would this be done?

http://www.cbtricks.com/radios/galaxy/dx88hl/graphics/88hl_3600-14b_bot_color.gif

 

[mr_fx]

well I changed the 220ohm back to a 1k ohm and that radio is sounding good, makes numbers just like my old DX 77HML made. So I will just leave it alone and throw it in the truck

 

[purenrg]

Numbers? OP? how much?

 

[mr_fx]

Numbers? OP? how much?

? I am confused ?

 

[ExitThirteen]

Purenrg was asking about what kind of output you were getting.


As far as the mods go, the 1k ohm resistor under IC9 was changed to amplifiy the TX mixing stage that IC9 does. It is an effective mod, and won't hurt IC9 or make your TX sound nasty. It opens up the width of your TX across all the bands of the radio. You could change it back to the 220 ohm resistor and you would see a small improvement in output across the board.

The cap on the middle final from emitter to ground could be there for impedence matching purposes, perhaps to match or balance the 2 finals. I have seen this done before on other radios.

If your output power is not effected by the cap, I'd just leave it alone. However it sounds like everything is working fine as it is, and you're good to go.


~Cheers~