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Iron Pumpkin(s) and other smaller vegetable animals
Iron Pumpkin(s) and other smaller vegetable animals
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Old 10th October 2019, 07:48 AM   #251
Zen Mod is offline Zen Mod  Serbia
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Iron Pumpkin(s) and other smaller vegetable animals
glad you're satisfied !

btw. you can remove heatsinks from IRF critters - you can keep your fingers on them all day long and it looks prettier that way
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Old 10th October 2019, 08:27 AM   #252
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Any recommendation of thermal resistance for the other ones? Or just some coolers?
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Old 10th October 2019, 08:33 AM   #253
Zen Mod is offline Zen Mod  Serbia
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Iron Pumpkin(s) and other smaller vegetable animals
small coolers enough

there's really no need to calc anything
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Old 10th October 2019, 08:38 AM   #254
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Good
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Old 10th October 2019, 12:01 PM   #255
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Oh yeah, I forgot to mention the unexpected bonus with the iron pumpkins ---

This thing makes a pretty decent headphone amplifier too. I have 80ohm headphones that pumpkin drives with ease because of its low impeadence output. At the low level settings for head listening, -21dB or lower, output Z is 1 ohm or lower. My sources all capable of 1.5Vpk or more.

Try it. Vinyl never sounded so good!
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Old 10th October 2019, 12:35 PM   #256
Zen Mod is offline Zen Mod  Serbia
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Iron Pumpkin(s) and other smaller vegetable animals
my Preamps will rule all those Papamps!!

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Old 11th October 2019, 02:45 AM   #257
Cinco is offline Cinco  United States
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Quote:
Originally Posted by Zen Mod View Post
my Preamps will rule all those Papamps!!

Yeah, I'm ruined forever. I used to use stepped resistive attenuators to contol various papaamps. I tried conventional stepped, series/shunt, ladder, etc.... they all sucked the life out of the music, even using buffers. The only time they work ok is when they are all the way up (low series resistance).

Then I tried AVC and finally low Z buffer in front, Iron Pumpkin configuration. I can now never go back to inferior, icky resistor methods. Long live iron pathways to Zen in music reproduction.


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Old 14th October 2019, 11:13 PM   #258
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Iron Pumpkin(s) and other smaller vegetable animals
The only way to go, for sure.
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