Welcome to APUG, Barbara. I don't have any spare equipment, but here's some background info since you seem a bit uncertain...
I own two Crown Graphics (one beater for parts, one user in like-new condition). Fabulous cameras, as well as wonderful conversation starters. And giving away spent flashbulbs as a thank you usually delights your subjects.
My relatively standard flash setup is the Graflex Graflite 3-cell, with a 5-inch reflector, using Sylvania Press 25 or GE #5 bulbs. For reliability I added a brand new coiled Paramount household-to-bipost sync cord. I don't have the shield, and thus far have never had a bulb explode. They are overcoated with a dipping into plastic for safety anyway.
The 7-inch reflectors are for use with the larger #22 or similar bulbs. The ones that look the same size as common household incandescent light bulbs. You would remove the entire right-angle fixture from the top of the Graflite and just fit these bigger bulbs directly down into the "stick". They are more powerful than the 25/#5 bulbs, but wear a fedora and chomp on a cigar while using them and people will mistake you for Weegee.
Your shutter has a built-in flash bulb setting where the 'M' position is for standard "medium peak" bulbs. That's what the Sylvania and GE bulbs require. The 'X' setting will allow you to use standard electronic flash units as well. Just don't forget to reset it after switching between light sources. Ask me how I know...
Press25/GE5 bulbs generally run between 50-cents and one-dollar apiece on the big auction site. They seem to be running cheaper right at this moment, but that varies back and forth. I have stockpiled about 1,500 of them, give or take so far, for use down the road.
Because of the expense I sometimes substitute a Sunpak 622S handle-mount electronic flash gun. Especially when the flash needed is a fill light and not a primary light. No burned bulbs for onlooker gifts, though.
If you really want to get serious, you could even look at one of these guys:
Vintage Stroboflash. They are period-correct Graflex units whose internal electronics have been completely rebuild to modern standards to make them usable again. The fellow even repaints them to look nice.
To see what's possible using flashbulbs on a Crown Graphic, here's three sample photos made using the Graflite and a single Press 25 bulb as the primary light source:
B-25J Mitchell Bomber
(there was a url link here which no longer exists)
(there was a url link here which no longer exists)
And here's two more using the same Crown Graphic where the Sunpak 622S electronic flash was used solely for fill lighting on sunny days. The first example was a minus 1-stop fill (could not have seen the boy's faces and arms without it), and the second was a 1-to-1 synchro-sunlight fill (same for the girl's faces):
(there was a url link here which no longer exists)
(there was a url link here which no longer exists)*
And as always, if you haven't yet been pointer to
[url]www.graflex.org[/URL] as the definitive source for information, you will be...
Ken
* Please don't beat me up for this one until reading the explanation behind the picture in post #16 on the second page of comments...
