Topband: DX-100 adventure contiunued

[Bill Cromwell]

On 01/08/2014 05:33 PM, Keith Jillings (G3OIT) wrote:
>
> In my (very distant) youth I came by a DX-100 that had been built from 
> kit by a local, who could never get it to work.  I spent a few 
> interesting weekends studying the circuit and the construction, and 
> then set to with a hot soldering iron and got it working.  I used it 
> as my one and only TX for a fair few years, modifying it to do this 
> and that as I went along.
>
> Mine was fed from 230 volt mains, and as I recall the HV was in the 
> region of 900 volts off-load, sagging quite a bit on-load.  I never 
> worried about it, and the PA valves remained happy throughout.  The 
> electrolytics didn't go bang either, but they were very much younger 
> in those days.
>
> I eventually sold it to a local dealer and put my pocket money to it 
> to buy an FT101E which I still have and use with my VHF and UHF 
> transverters.
>
>
> 73
>
> Keith
> G3OIT
Hi Keith,

This one has been modified (mostly gutted of AM). Somebody else asked if 
it was a kit. The first name is Heath and the last name is Kit. They are 
all kits as far as I know. It has a lot of miles, years, and previous 
owners. If they were available already assembled I have no real way to 
know. My Johnson Ranger was one of the kits, too but was available 
assembled by the factory. They used rivets. We used screws and nuts.

If I have to make changes to get it going I'll install a screened cage 
around the finals and *real* neutralization. Full QSK break-in, 
heterodyne VFO, etc. First I'll try to make the CW part of the rig that 
remains work.

73,

Bill  KU8H