Swing mod for Grant LT

[preacherman]

Been looking for a swing mod for this radio.
It has a different # on the pc board than
the Grant XL's and so if some one can point
me to the right resistor to add the 1N4001
to, I'd appreciate it.
preacherman

 

[lords]

well how are we to do this if the board number is different post a pic or a number...

is that a XL(8719 pll)

and is AM POWER: VR10 (check that)

 

[preacherman]

Yes...and yes. I ask because the info I could find indicated that what was stated was only accurate for certain number/model pc boards. Mine does not have those numbers. Just not real excited about letting the magic smoke out of some transistors by indiscriminately putting diodes here and there.

Preacherman

 

[Highlander_821]

Don't butcher a fine radio by doing that. Just adjust the AMC for 100% and leave it alone.

 

[Switch Kit]

NPC mod on a Grant won't hurt anything , SSB stays pretty good to my ear hole , and I certainly wouldn't call a NPC mod a butchering . Just gives the radio higher swing from the lower
DK on AM. May not be perfect , but I don't see a butchering.

 

[lords]

Grant XL
1. Add a 1.5 K resistor on to the middle leg of Q24 (cut the track and bridge with the resistor)
2. Replace R126 (10k) with a 4.7k.
3. Replace R124 (10k) with a 4.7k
4. Re-tune coils L37 and L38 for maximum forward swing on AM mode.

MODULATION: Remove R131
AM POWER: VR10
SSB POWER: VR11


and Switchkit is Right about the NPC mod all it does it keep the full PEP watts while you can lower the Deadkey watts for a nice 4 to 1 or an amp...has nothing to do with clipping or ruining the modulation....

 

[freecell]

Problems with NPC:

http://forum.worldwidedx.com/viewtopic.php?p=126614&highlight=attack+overshoot#126614

How AMC Operates:

http://forum.worldwidedx.com/viewtopic.php?p=125148&highlight=amc#125148

 

[lords]

I aint even going to bother looking freecell

 

[KC2OST]

NPC mod on a Grant won't hurt anything , SSB stays pretty good to my ear hole , and I certainly wouldn't call a NPC mod a butchering . Just gives the radio higher swing from the lower
DK on AM. May not be perfect , but I don't see a butchering.

They don't know what the NPC mod is.
on the old radios it works great.
Those new radios are crippled. It just doesn't work.

I know where the real mod is located.

Take care SK,
JD