I have a UK FM CB radio that I would like to convert to 29mhz, it uses the LC7137/6 chip.
I wonder if anyone out there has any information on how to do this ?. Many thanks in advance.

Does anyone out there have a design for a simple 70cm pre-amp that I can build and fit inside an old mobile rig that is a bit "deaf" by todays standards?.
Many thanks   John   M5JVW

Does anyone out there have a manual and/or info. on a KDK multi U11 70cm mobile rig.
Many thanks.    John    M5JVW

Does anyone out there have an instruction/users manual for a Phillips D2935 World band reciever made about 1989, original or a copy will do.All costs covered.
73 de John  M5JVW

I have a Trio/Kenwood 2300 2 Meter FM portable rig made about 1983, it is 1 watt RF output from its 2SC2329 output transistor.
Apparently a few years ago there was a mod. you could do to raise the power output to about 2 1/2 watts, I believe that this was just a change of the output transistor.
I wonder if anyone out there has heard of this mod. and could tell me which PA transistor I need to obtain for the mod .
Many thanks   John   M5JVW
 

I have a 144mhz linear amplifier made by a company called SOTA ( I think it was English )on which I require any information and a circuit diagram.
The PA transistor is a MRF240 any info. on this ie. max power handling etc. also welcome. All costs refunded .  Many thanks .John  M5JVW.

PS.  The amp. is black, about  6" square with switches for TX   RX  and SSB/FM.