SWR Baby Blue 2

[wizard333]

Anyone have a schematic?

This one crackles when the volume is adjusted but its not a dirty pot; I suspect a pre-amp transistor.

[Twist]

Have you checked for DC on the pot terminals or maybe cracked solder joints?

[Enzo]

All I can find is the Baby Blue, though the power amp schemo does say Baby Blue II.

See if this preamp matches your unit.

[wizard333]

Thanks Enzo!

I did check the solder joints etc. Problem appears to lie elsewhere.

There are only subtle differences between the baby blue and baby blue 2, most of which amounts to speakers on the BB2 being half the impedance so they could show a higher power rating (185W RMS vs 120W RMS).