tomteriffic Posted March 22, 2005 Posted March 22, 2005 A buddy of mine has just scared up an older Sunn amp that all went back together OK, but the power transformer is toast.It seemed to me that somebody here had God's Own Personal Sunn amp collection. I was hoping they may have a source for the power transformer specs for this model. It's a 350L.Anybody? Bueller? Bueller?
GusS Posted March 22, 2005 Posted March 22, 2005 that'd be mc2. he's not around anymore.they were made by dynaco i believe.ask here: http://www.dangpow.com/~sunn/
alpep Posted March 22, 2005 Posted March 22, 2005 sunn used dynaco trannies on some of their models. in the 80's tons of the amps were gutted by audiophiles for amps. in fact allesandro was buying dynaco amps and using the transformers for his amps.
AdmiralB Posted March 22, 2005 Posted March 22, 2005 Triode Electronics sells reproduction Dynaco iron, but only for the two-tube stuff. What your buddy has is the late version of the 1200S lead amp, which used the four-KT88 Dynaco set (I have the 2000S bass version of this rig).I think Mercury offers a clone but it is EXPEN$IVE.
tomteriffic Posted March 22, 2005 Author Posted March 22, 2005 I'm told that the 350L is actually either a 1000S or 1500S, depending on whether or not it's got reverb/tremelo. The 350B was a relabeled 2000. Thanks for the tranny lead.
AdmiralB Posted March 23, 2005 Posted March 23, 2005 The big difference is that all the 350s had SS rectifiers, and most of the earlier rigs had dual 5AR4s (some had plug-in SS modules installed).
tomteriffic Posted March 23, 2005 Author Posted March 23, 2005 I stand corrected, the 350L is a rebadged 1200S with the SS rectifier, although, from what I gather, the traqnsition from tube to SS rectifiers happened during the 1200's lifetime.
AdmiralB Posted March 23, 2005 Posted March 23, 2005 Correct. My 2000S is a '70 model that had only one recto socket installed and a plug-in SS module residing therein.I scrounged a period-correct Cinch snap-ring socket and set it up for the dual 5AR4s and I'm rarin'.
tomteriffic Posted March 23, 2005 Author Posted March 23, 2005 A bit more scrounging around and it appears that the 1000-2000 series all had the same power section, allowing for the change from KT-88's to 6550's. Given that, and given that the higher power models were simply a doubling-up of the Dyna output section, it's probably a safe bet that they used the same power transformer, changing to diodes later on for rectification, throughout the line.I'll have my friend check the codes on his XFMR but it appears to be a readily available Hammond part.
Mike_C Posted March 23, 2005 Posted March 23, 2005 My first real amp was a SUNN 200s. I miss that amp.
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