RM Italy KL 503 Crunchy

[Shadetree Mechanic]

Presumably the HD version has no driver?

Still has the driver they fit a 7db pad into the relay.
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Good job RM Italy........

 

[Edd200sx]

Never experienced that after doing this mod. Fortunately, you can buy the HD version, now.

Presumably the HD version has no driver?
[/QUOTE]

I’ve got an hd sat here and it has the driver still and a 7db pad

the later ones had a different board design and that cutout by the relay is where the pad goes.

Note. The 703 uses 2x 3db pads for input attenuation

 

[Kristopher burt]

As far as this amp sounding bad on SSB. Remove the 3.3 pf capacitor where the so239 is on the input side C34 & put a 15 pf cap in its place. Problem solved. I noticed my meter wasn’t responding to my words on SSB & it sounded horrible around town. A friend 20 miles away could barely hear it. Mine sounds perfect now.

Wish him the best and for you to be a friend to him in these times...

​

John 15:13​

"Greater love hath no man than this, that a man lay down his life for his friends."​

When you review the "lay down his life" is to take this as you spent a lot of your time to help - and this is also for those others that helped you, to obtain that which your friend had lost in the ability to operate because of his own loss - you've restored his ability to use.

Because of what you asked - others were able to help you regain that which a friend of yours had lost

I tried to replace C34 with a 15pf but was unable to find the cap in my parts bin so I used a 10pf. I can say I do hear a noticable change for the better. Much cleaner, thanks Mikey!

 

[OldModel]

All good info. Thanks to all the contributors.