After an absence of 20+ years, an old bass of mine found its way home.  The pickup has an open coil, so I've ordered a new one.  The control cavity has been ravaged, so I've downloaded the schematics to set things right again...
 

 
John

Ooh, that looks great!

Thanks.  It's good to have it back!

I always liked the G&L basses better than the  original Fender models.

John, that's great to hear and congratulations!  She's a looker!
 
Me, too, Bob.  They're Leo's updates of his own designs, which makes them original Fenders if you ask me.  

love my L-2500!

Im a big fan of G&L basses and this one is a beaut!
 
John.

That's great!!!  I wish I had all my orphaned instruments back.

Congrats! The L1000 is the most versatile single pick up, passive bass ever made (my opinion only...) I have an '82 L1000 and its' sound and feel never cease to amaze me.  Early G&L basses are still the best bargain around. Enjoy it.

Nice bass. Cheers...

If it's passive, then what do the three controls do?

Adriaan, There's a series/parallel/single coil switch for the pickup, then volume, treble cut and bass cut knobs.

Bass cut? Didn't know that was doable in a passive circuit. Funny thing to have on a bass, but there you go ...

Played it most of last night with Dicky James and the Blue Flames, and it was like old home week.  As a friend in the crowd said, the tone doesn't blossom like the Alembic, but it still sounded pretty good with that band.
 
I've done a bit of Googling and so far haven't found anything negative about that instrument, which by all indications is an '81.  Can't wait to get the new pickup and rewire the guts back to original.  I originally thought it would be an excellent candidate for a fatboy (probably ultimately still is), but I think just having it back to original configuration is what it needs from me right now.
 
Life sure can be full of surprises.