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Old 13th July 2012, 11:53 PM   #1
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Default 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.
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Old 14th July 2012, 12:18 AM   #2
kevinkr is offline kevinkr  United States
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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.
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Old 14th July 2012, 01:05 AM   #3
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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.
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Old 14th July 2012, 02:07 PM   #4
kevinkr is offline kevinkr  United States
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I suspect Jack can wind you something that is a bit closer in spirit than the dynaco A451..
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Old 19th July 2012, 11:33 AM   #5
tkk810 is offline tkk810  Singapore
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[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)
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Old 22nd July 2012, 05:28 PM   #6
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TKK810

Ever seen a price for the F-2011?
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Old 23rd July 2012, 03:59 AM   #7
tkk810 is offline tkk810  Singapore
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i brought the pair at $2300 (Est USD$2000) about 10yrs ago
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