Jack,

New chassis looks great, well done.

It looks like you have a white wire (Anode HT maybe) going to a meter
then through the chassis. This will need some serious de-coupling
(feed through cap) as it enters the chassis otherwise it is going to
radiate in the lower chassis which won't help with the stability
issues. A 'T filter' would be good here, 1mH above deck, a 10nF
feedthrough cap and 1mH below deck.

As Andrew mentions, you also have 'below deck' electronics 'above
deck' in the form of the VFO. This is going to need very tight
screening to avoid feedback and stability issues.

What frequency are you running this unit at - 14MHz ??

Any chance of some higher res photos looking from above the chassis
and from below ?

Regards,

Mark
On May 27, 7:49 pm, Andrew VK3BFA wrote:
On May 27, 2:02 am, Jack Schmidling wrote:

I just posted one tohttp://schmidling.com/807b.jpg

Unfortunately, it now looks better than it works.

And it LOOKS very nice...why no shielding around the vfo assembly? -
the sudden temp druft is possibly something suddenly stabilizing as it
warms up - BTW - polystyrene caps are a better substitute for disc
ceramics, especially old ones...

I faded out of ham radio because it was boring me to death once I "moved
up" to a rice box. My born-again career keeps me interested because
hardly anything works very well.

Good one- their the things that provide real satisfaction, the sort
that cant be bought...

good luck- keep us posted on progress.....

73 de vk3bfa Andrew