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mr2racer 14th July 2012 12:53 AM

Marantz Model 9
 
Hello everyone,

I've been toying with the idea of building a pair of Model 9 monoblocks. And the output transformers seem to be a real stumbling block. From my research I've found for 8 ohms out they see a 3000 ohm PP. And if I'm not mistaken I think I remember seeing a 22% ultralinear screen tap. Obviously forget about the tertiary feedback windings. But has anyone seen such a transformer readily available?

I looked at Luhndal, Hammond, and Edcor. I was intending to use Plitrons but was warned against torroidal outputs. I have yet to talk to Heyboer, they seem to close right after lunch!

I think these may need to be custom? Any help would be appreciated.

kevinkr 14th July 2012 01:18 AM

Jack Elliano over at Electra-Print is another one to talk to, his OPTs are quite good. (I use a pair of customs he built for my GM 70 SE amps)

He is also reasonably priced.

mr2racer 14th July 2012 02:05 AM

Thanks Kevin. I completely forgot about Electra-print. I also forgot that I once asked Heyboer about Dynaco A451's which might work. 2200ohms but maybe a little massive. Heyboer quoted me $235 each which seems very reasonable. I'll contact Jack right away.

kevinkr 14th July 2012 03:07 PM

I suspect Jack can wind you something that is a bit closer in spirit than the dynaco A451.. :)

tkk810 19th July 2012 12:33 PM

[QUOTE=mr2racer;3091478]Hello everyone,

I've been toying with the idea of building a pair of Model 9 monoblocks. And the output transformers seem to be a real stumbling block. From my research I've found for 8 ohms out they see a 3000 ohm PP. And if I'm not mistaken I think I remember seeing a 22% ultralinear screen tap. Obviously forget about the tertiary feedback windings. But has anyone seen such a transformer readily available?

I looked at Luhndal, Hammond, and Edcor. I was intending to use Plitrons but was warned against torroidal outputs. I have yet to talk to Heyboer, they seem to close right after lunch!

I think these may need to be custom? Any help would be appreciated

I'm using Tamura F-2010 SERIES
(Bilirite Series)

mr2racer 22nd July 2012 06:28 PM

TKK810

Ever seen a price for the F-2011?

tkk810 23rd July 2012 04:59 AM

i brought the pair at $2300 (Est USD$2000) about 10yrs ago


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