hifi engine

Help with lamps on Pioneer A-77X, anyone?

Hi guys! I have an old A-77X that need some new lamps on the front panel. The red and green leds are easy of course but the power lamp AND source direct lamps are just insane to even describe. Anyone know where I can find them or what "specs" they have so I can order new?
I would highly appreciate some help!
Thanks in advance.
Ps. Pictures can be sent if you need to see it!