It's definitely worth sending out your CV now.
Some companies will always be looking to hire, especially if some of their staff are currently down sick and they have commitments to meet.
Overall the market will be less but the number of people bothering to apply for jobs right now may also be less.
Just like how you questioned if it was worth applying.
Always remember, the CV is just to grab their attention and show that you can actually build/develop stuff.
As Dave said, showing you have a electronics lab, and work on your own projects is very helpful to demonstrate you have actual skills and not just pieces of paper.
You want the engineers at the company to read your CV and think, "lol, this guy seems interesting, he's done some cool stuff. lets get him in for an interview" (him/her)
The problem you sometimes have is HR throwing the CV in the rubbish before the engineers actually see it.
So you do have to make the CV professional with no spelling mistakes, well laid out etc.. So it can get past HR