Kelly Express layout questions

[sliberty]

1. In the layout, I don't see a notation for the 2nd heater wire on the power tubes, but the photos of Francesca do show that both heaters are connected at the power tubes. Can someone please confirm for me tha this is just an inadvertant ommission on the layout?

2. On the layout where the PT secondaries come through the chassis, the red wires are the 300VAC, and the heaters are obvious. But what about the green and black wires running to ground? Are those the high voltage and heater center taps?

3. The filter caps are just hotglued together and hot glued to the chassis?

I am sure there will be more, but thats it for now. Thanks for any help you can offer.

Steve

[Allynmey]

1. In the layout, I don't see a notation for the 2nd heater wire on the power tubes, but the photos of Francesca do show that both heaters are connected at the power tubes. Can someone please confirm for me tha this is just an inadvertant ommission on the layout?

2. On the layout where the PT secondaries come through the chassis, the red wires are the 300VAC, and the heaters are obvious. But what about the green and black wires running to ground? Are those the high voltage and heater center taps?

3. The filter caps are just hotglued together and hot glued to the chassis?

I am sure there will be more, but thats it for now. Thanks for any help you can offer.


Steve

1. Yes they are just ommitted. Just hook them up as usual
2. Those wires are the CT for the HT and Heaters.
3. Yes they are hot glued. Just like Ken did! If you use Niks chassis and full sized caps, use this little trick. Heat the chassis a little with a hair dryer or heatgun. Preglue your caps together on a flat surface. Put the hot glue on the bottom of the cap stack and press firmly on the stack to seat them. The glue will harden slower if you preheat the chassis, giving you time to work.

Good luck! Post pics!!!

Allynmey

[sliberty]

Thanks - I will keep posting pictures as the build develops. My next hurdle is where to drill holes to mount the power supply board. Trannies tend to get in the way of such things.

[MooreCowbelle]

sliberty,
plan on countersinking a couple of those tranny bolts, and putting them in backwards - ie. the head on the inside of the chassis. I ended up doing that for the bolts under the power board, and the bolts next to the filter caps.

As well, I had to install short, countersunk screws for the power board standoffs that are under the transformers. Otherwise the trannies won't sit flush on the chassis.