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Sunn Musical Equipment => Q & A => Topic started by: cosnerguitars on September 25, 2017, 02:04:55 pm

Title: 1979 Sunn Concert Bass Schematic
Post by: cosnerguitars on September 25, 2017, 02:04:55 pm

Hi I'm looking for a 1979 Sunn Concert Bass Schematic. I found one on various websites but this one appears to be somewhat different.  Mine has a single bridge rectifier with discreet diodes, and the ones on the net seem to show 3 separate bridge rectifiers.  Mine also seems to have a 47k resistor and neon lamp in parallel with the main switched power supply.  Any help would be greatly appreciated!

Title: Re: 1979 Sunn Concert Bass Schematic
Post by: loudthud on September 25, 2017, 09:24:06 pm

There is no all on one sheet schematic for the later Concert Bass that I have found. This should be the power amp schematic. I have the preamp somewhere but I can't find it ATM.

Title: Re: 1979 Sunn Concert Bass Schematic
Post by: cosnerguitars on October 05, 2017, 03:19:16 pm

Hey Loudthud,

Thanks so much for the schematic!  You saved the day!