In the Thread referenced by Jerry there are indeed photos of both types.
Post #32 shows Graham's DAC90A
WITH NO springs.
Post #33 shows my own DAC90A
WITH springs.
Here are my springs which I have retained, just in case ...!
https://www.vintage-radio.net/forum/...5&d=1526205390
Remember to pull the valves straight out of their holders - don't force them and don't wiggle!