B&k 1077

[kf4rca]

Some of those B&K's had selenium rectifiers. That could very well be the source of your smoke. If you have vertical linearity problems, change the two 2.2Meg resistors in there.
You can make extra slides yourself. Download the desired image and print it to paper on an ink jet printer. Take that image to Staples or Office Depot and ask them to make a transparency. Tell them extra contrast when they print it on the laser jet. Cut the transparency to the desired size. The transparency will cost about 75 cents.
If the image is too big, you will have to use a graphics program to scale it down. I use GIMP which comes in Ubuntu Linux but I am sure Microsoft has similar programs. I found the desired size is about 300x400.