Johnson 500 Transmitter Restoration - continued
These
are the four major transformers from the PS/mod deck removed and newly painted.
Wiring
harness cleaned up, repaired, ready for installation
Chassis
after new cad plating - Wow, what a difference!
Close
up of an important modification - replacement of the three original pin jacks
used for HV
with BNC connectors color-coded like the original jacks. Should be safer for
the HV.
(I later changed the "red" BNC (modulated HV) to a Millen HV collector)
Reassembly
begins ... just like a Heathkit ... sort of ...
Harness
back in place
Bottom of HV chassis is complete; all capacitors
are new
Another view of the completed HV chassis bottom
Top view of the completed HV chassis
Another
view of the top of the completed HV chassis.
The modified HV connectors (BNC's) are clearly visible here.
Since
this chassis weighs well over 100 pounds I decided that castors would be
a good idea. Here they are shown with the bottom plate installed.
Power
Supply chassis complete with castors in place. Final step will be to install
the cover.
Castor
detail showing aluminum gusset for added strength
