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Paralleled 6HB6 Amp
Paralleled 6HB6 Amp
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Old 1st August 2018, 07:02 PM   #1
stonehome is offline stonehome  United States
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Default Paralleled 6HB6 Amp

A Paralleled 6HB6 push pull amp. I started with Tubelab’s SimplePP board and modified it to use 6HB6 tubes. I liked it..alot. So I paralleled more 6HB6 and changed power and output transformers and ended up with about a 30W amp.

With no input there is a slight hum. It wasn’t there before I paralleled the tubes so most likely it’s wiring. I didn’t notice it with music playing so it didn’t bother me but i’m sure it will bother some.

I have extra 6HB6 tubes.

power transformer is a Amplimo toroid 5N1609
output transformers are Amplimo toroidal 3A534-UL 3.54K ohm

$400.00 plus shipping (I’m guessing it weighs close to 40 lbs.)
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File Type: jpg fullsizeoutput_95.jpg (275.3 KB, 240 views)
File Type: jpg IMG_2929.jpg (325.2 KB, 237 views)
File Type: jpg fullsizeoutput_8c.jpg (575.5 KB, 240 views)
File Type: jpg IMG_0295.JPG (458.9 KB, 241 views)

Last edited by stonehome; 4th August 2018 at 03:09 PM. Reason: new price
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Old 4th August 2018, 03:10 PM   #2
stonehome is offline stonehome  United States
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I'm surprised. A special amp. Maybe at $400. ;-)
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Old 10th August 2018, 02:17 PM   #3
stonehome is offline stonehome  United States
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Well, $300 plus shipping.
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