I don't have one of these or a manual for them, but I do have a book
entitled "Philips Darkroombook" that gives brief descriptions of them. I'd
be willing to scan the relevant pages and e-mail them to you if you like;
just tell me (by e-mail if you prefer). I'd rather not fire off big scans
uninvited, though.

This is interesting. I'm in the same boat. I moved into our current
house 18 years ago and had to leave behind my darkroom. I've had my eye
on a spot in the basement, all these years, and this fall have started
to put up the stud walls, etc. to get a darkroom back together. A
couple of months ago I bought a Philips PDT 2015 at a photo swap event
outside of Minneapolis and am now trying to figure it out. I found a
site in England that will sell a copy of the manual and will post a
link below. Last evening I gave the timer to my son (senior
math/physics college student) and asked him to figure it out. Let's
keep in touch and see if we can make this thing useable.

mick

http://www.oldtimercameras.com/stock/Model.asp?Model=9564&ModelPage=true

Their reply to my query:

We do ship to the US postage would be £2.75,it is not available as a
pdf file. I am sorry but we do not accept paypal, you can pay with a
credit card.
Regards
OTC Ltd
01707 273773
sales@otcworld.co.uk
www.otcworld.co.uk

I have the original manual. So if you have some very specific questions
I can try to look it up. Never used the probe.

Max