FS: stuffed k134/j149 Mosfet Amp, Full Complementary Symmetry FET Preamp boards - diyAudio
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Old 1st April 2007, 12:40 AM   #1
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Default FS: stuffed k134/j149 Mosfet Amp, Full Complementary Symmetry FET Preamp boards

I have the following for sale:

2x Sound Master TA-477 factory stuffed 120W Mosfet power amplifier modules removed from DIY amplifier. According to my instruction sheets, they have the very rare Toshiba2sK134/j49. Deisgn based on ETI TOP Project 477 with slight modifications. Includes heat sinks. Need simple unregulated power supply to function

1x Sound Master TA-377A Full Complementary symmetry FET stereo preamplifier, utilizing matched pair transistors on RIAA and line amp stages. Has ransistor-based regulation on board. No power transformer.

give me an offer if you are interested.
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Old 1st April 2007, 12:45 AM   #2
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btw preamp has awesome 100k Alps Black Beauty pots (balanced pot and volume pot).
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Old 1st April 2007, 08:13 AM   #3
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For interests sake how much were you looking to get for the preamplifier?
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Old 1st April 2007, 01:33 PM   #4
housing is offline housing  Hong Kong
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Any photos? The 2sK134/j49 should be Hitachi's.

How much are you looking to get for the TA-477 amplifier?
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Old 1st April 2007, 04:52 PM   #5
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Default MOSFETs should be Hitachi 2SK135/J50

Dear Housing,

I just opened the DIY amp for you, but sorry to tell you that the MOSFET transistors are the Hitachi 2SK135/J50.

The 120W amp is exactly as displayed in this website: http://www2.plala.or.jp/takatsugu/PARTS.htm

I haven't replaced anything since I bought them new from an electronics shop, however. Instruction sheets specify that Q10/11 could be 2sk134/135; Q12/13 could be 2SJ49/50; the factory version used the higher rated k135/j50.

I am expecting HK$450 per channel. You know the Japanese website is selling them at a whopping 15000 yen a channel. Pickup is available since I am leaving for Hong Kong in two weeks.
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Old 1st April 2007, 05:01 PM   #6
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2SJ50s
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Old 1st April 2007, 05:02 PM   #7
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2SK135
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Old 1st April 2007, 05:11 PM   #8
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Tom,
Is C$60 + shipping within BC fair enough?
I don't think shipping would exceed $15, but I have to check with the post office first.

Transistors in the line/RIAA sections are 2SK81/J40.
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Old 1st April 2007, 05:12 PM   #9
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and the Alps black beauty pots
btw the spindle rods have never been cut short.
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Old 6th April 2007, 06:17 AM   #10
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Default k150/j50 mosfet power amp modules

last call. price for mosfet power amp modules reduced.

US$55 + shipping + paypal fees

price is for two modules. each module has a pair of 2SK150 and 2sj50. Mosfets are made by Hitachi.
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