[HomeBrew] IC identification needed

[James C. Garland]

Hi Gang,
I'm reverse-engineering the synthesizer in a 1970-era HF receiver, and 
found a mystery IC I can't identify. It's a Motorola MC1047P, from an 
earlier and long-discontinued Motorola MECL family,  probably MECL II or 
MECL III, dating from the late 60's.  Anybody with an old MECL manual that 
could look up the pinout and function of this chip for me?  Thanks!

Jim W8ZR