The  EBS MicroBass II offers phantom power . Check it out for compatibility.

Mica, I believe the opamp is original. Can you tell me what the exact replacement part is. I'd like to order it. Thanks, Bob

Mica - do you recommend replacing the opamp on instruments built before a given year?
 
Just wondering about my 88 Spoiler - although I can't remember the last time I changed the battery (that's life as a living room noodler).

I don't have records that help me recall exactly what year the new opamps came into play. Just check the IC and see if it's a TLE2024, that's the new one.

Thanks Mica, The Serial # is 83S2844. The IC reads,  
Harris HA1-4741   8141 and written in blue marker is 770. I hope that helps. Please let me know. Thanks, Bob

The IC in my 88 Spoiler has an H logo (Harris?) with code A3-5144-5 and beneath that ?8725.
 
[edit: Well, not an ? but a delta.]
 
(Message edited by adriaan on September 10, 2009)

Does anyone know if this is the correct IC   http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=180345568837&ssPageName=ADME:B:EOIBSA:US:1123