Re: 3 pickups and a 3-way switch?
The modern 5-way switch
is the "old" 3-way switch. They just added the "click", or detent, to create the #2 and #4 positions. The "old" 3-way, would only allow you to select one pickup at a time. You can mimick that functionality by not stopping on the #2 or #4 positions of your 5-way.
. . . but why would you want to?
Edit: Sorry. Somehow I missed the last sentence of your post. :smack:
If you actually
want to recreate this functionality, you could do a couple different things. The easiest, will be to find a "vintage" 3-way switch on eBay. The next thing would be, (if you're mechanically inclined), to carefully disassemble your present 5-way, and "block", or defeat the #2 and #4 detents.
One last option, and this could be cool, use an ordinary 3-way to select between neck and bridge. Hardwire the middle pickup, and then you'ld have:
1. neck/middle
2. neck/middle/bridge
3. middle/bridge
That would actually be a useful, and interesting switch function.
Edit #2: Now you got me thinking.
Or, wire neck and middle together, to one side of the switch, and bridge to the other. Now you'ld have:
1. neck/middle
2. neck/middle/bridge
3. bridge
Which would be quite functional in an HSS Strat. Its
all good. :laugh2: