We are back after a long hiatus and a persistent problem with a hue shift.
Update, June 27, 2025
Greetings. After taking about 6 weeks off, it is time to re-visit this project. There appears to still be a shift in the hue. Cold spray has shown no sensitive components. However, there are 2 capacitors located inside the CW Driver Transformer can. They cannot be accessed with the cold spray so I have elected to change them. I had to order these since they are 5% tolerance and the best I could do is 10% in my stock. There are 2 capacitors in the can, a 680 pf and a 1000 pf both of the silver mica type. The wires on this transformer are very small and delicate so there are no second chances if something should go wrong when changing the capacitors. I also plan on changing the socket on the 6CB6 CW oscillator tube. It is very dark in color and probably should just be replaced whether it is problematic nor not. The pictures will be sent over several emails. Onward!
Pix 1 Schematic showing the caps inside the can
Pix 2 Bottom view of XFMR
Pix 3 Moved several coils out of the way so I can get to the XFMR wiring. This unveiled a very suspicious looking ground connection.
Pix 4 6CB6 Osc. socket discoloration.
Pix 5 XFMR wires disconnected
Pix 6 and 7 XFMR removed and ready for dissassembly
Pix 8 External components removed. These will all get replaced with new.
Pix 9 XFMR dissassembled
Pix 10 The 680 pf cap shown with the 1000 pf behind the coil.
https://visions4netjournal.com/wp-co...WXFMRcaps.jpeg
https://visions4netjournal.com/wp-co...CWXFMRBot.jpeg
https://visions4netjournal.com/wp-co...round-con.jpeg
https://visions4netjournal.com/wp-co...B6-socket.jpeg
https://visions4netjournal.com/wp-co...ires-disc.jpeg
https://visions4netjournal.com/wp-co...removed-1.jpeg
https://visions4netjournal.com/wp-co...removed-2.jpeg
https://visions4netjournal.com/wp-co...comp-rmvd.jpeg
https://visions4netjournal.com/wp-co...FMR-disas.jpeg
https://visions4netjournal.com/wp-co...f-showing.jpeg