OK the paint finally dried. Trem Clad makes some good paint but it is a bitch to use if you are in a hurry. First pic is of the newly painted front panel with all the original components installed with the exception of the two silver switches which were add-ons from another project but will be usefull.Red lamp for filaments on, green lamp for plate voltage on and ready to go.Plate voltage will be locked out until filaments are turned on first. A pair of breakers and six fuse holders along with two switches complete the front panel.The black wrinkle finish just says "Old Buzzard gear" all over. 
For those of you NOT familiar with the term "buzzardly" I direct you to the dictionary of the one and only Tim Smith aka Timtron aka W-A-1-H-Yell-R . Tim is found most nights tearing up and down the 75m AM window.
Category:Timtron - HF Underground
Here is the rear view of the chassis with new deck plate installed.
An finally the complete chassis with what I believe to be the final component layout.
The plate transformer in the upper right is from a Collin's broadcast transmitter of I believe 500 watts carrier rating. It puts out 3200 volts AC either side of centre tap.The rectifier will be of the conventional full wave non bridge type. The black choke in the upper left is the power supply filter choke for the high voltage. This power supply will be choke input and will be smoothed by the pair of 6 µF@4000 volt capacitors seen in the bottom left of the picture.Both caps will go in parallel after the filter choke. This should make a fairly stiff supply which is required for SSB service.The bottom right shows the two filament transformers that were originally with this piece of surplus gear when I picked it up 25 years ago. They will work quite nicely with this project.since i decided to go with an outboard PSU I figured why scrimp on component values and go with something that is more than suited for the task rather than use something that is borderline. Not sure what the final weight of the PSU is but the plate tranny itself weighs about 55 pounds. It is easily over 100-120 pounds total weight. And to think that this is the light weight supply compared to the one for the 3-500 or 4-400 project down the road. The last picture shows two of four rectifier stacks that were part of the now defunct RCA transmitter I scrapped. Two of these rectifiers will be used as a full wave rectifier with this power supply.They are rated at 10,000 volts at 3 amps each.
Next comes the scary part,bench testing everything to see what the final plate voltage will be. I also have a large 250 watt wire wound ceramic rheostat that can be installed in the plate circuit to lower plate voltage if I need too. It also came from the RCA tx.This supply will also have a step start circuit to limit both filament and plate inrush current. Time to call it quits for a while now. I work the next several days and my hand is still giving me grief. It was all I could stand to do to use the hand power drill this morning and just placing those heavy components around was a bitch. I can't keep a good grip on heavy things.The wife keeps talking about therapy for it and I keep saying it's getting better. What does SHE know. She's just a nurse,it's MY hand.
For those of you NOT familiar with the term "buzzardly" I direct you to the dictionary of the one and only Tim Smith aka Timtron aka W-A-1-H-Yell-R . Tim is found most nights tearing up and down the 75m AM window.Category:Timtron - HF Underground
Here is the rear view of the chassis with new deck plate installed.
An finally the complete chassis with what I believe to be the final component layout.
The plate transformer in the upper right is from a Collin's broadcast transmitter of I believe 500 watts carrier rating. It puts out 3200 volts AC either side of centre tap.The rectifier will be of the conventional full wave non bridge type. The black choke in the upper left is the power supply filter choke for the high voltage. This power supply will be choke input and will be smoothed by the pair of 6 µF@4000 volt capacitors seen in the bottom left of the picture.Both caps will go in parallel after the filter choke. This should make a fairly stiff supply which is required for SSB service.The bottom right shows the two filament transformers that were originally with this piece of surplus gear when I picked it up 25 years ago. They will work quite nicely with this project.since i decided to go with an outboard PSU I figured why scrimp on component values and go with something that is more than suited for the task rather than use something that is borderline. Not sure what the final weight of the PSU is but the plate tranny itself weighs about 55 pounds. It is easily over 100-120 pounds total weight. And to think that this is the light weight supply compared to the one for the 3-500 or 4-400 project down the road.
The last picture shows two of four rectifier stacks that were part of the now defunct RCA transmitter I scrapped. Two of these rectifiers will be used as a full wave rectifier with this power supply.They are rated at 10,000 volts at 3 amps each.
Next comes the scary part,bench testing everything to see what the final plate voltage will be. I also have a large 250 watt wire wound ceramic rheostat that can be installed in the plate circuit to lower plate voltage if I need too. It also came from the RCA tx.This supply will also have a step start circuit to limit both filament and plate inrush current. Time to call it quits for a while now. I work the next several days and my hand is still giving me grief.
It was all I could stand to do to use the hand power drill this morning and just placing those heavy components around was a bitch. I can't keep a good grip on heavy things.The wife keeps talking about therapy for it and I keep saying it's getting better. What does SHE know. She's just a nurse,it's MY hand.
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