FS Exposure VIII (8) power amp, (Naim 140) - diyAudio
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Old 12th October 2012, 01:36 AM   #1
limono is offline limono  United States
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Default FS Exposure VIII (8) power amp, (Naim 140)

I realised I have way too many Exposure amps around. For those who clone Naim 140 you can channelise your interest into tweaking this one. It is Naim 140. The schematic is identical and all mods for Naim apply. Impeccably built with Honky Holden -Fisher Power transformer and outboard Preamp +- 24 power supply. It is a GREAT sounding amp. manufactured in May 90. I have no problem taking it back , it is fairly small. $280
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File Type: jpg exposure 005.jpg (818.2 KB, 160 views)
File Type: jpg exposure 006.jpg (820.4 KB, 162 views)
File Type: jpg exposure 008.jpg (695.6 KB, 148 views)
File Type: jpg exposure 009.JPG (943.1 KB, 72 views)
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Old 14th October 2012, 04:34 PM   #2
limono is offline limono  United States
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It appears to be easily converted to 240 V due to dual primaries since they are much more popular and appreciated abroad than in US.
I will consider partial swap for Lundahl LL1651 power trans and LL1638/4H choke
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Old 27th October 2012, 03:43 AM   #3
limono is offline limono  United States
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Bump and two Kendeil 10,000uF/63 V caps for amp section will be included , so you can have some DIY things to do even if they are not really necessary
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Old 27th October 2012, 04:09 PM   #4
limono is offline limono  United States
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did I say that I will take it back no question asked if it didn't float your boat? I've got XVII/XVIII super combo so some of my 10 exposure amps have to please others. If you read Naim bible the guys write that finding suitable power transformer for Naim clone is not as easy as you may think. Since schematic (non existent is the same the same mods apply ( caps on the transistor's legs , changing input, feedback caps, disengaging protection circuit etc.)
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