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Old 28th September 2010, 11:17 PM   #21
1audio is offline 1audio  United States
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I would also like to see what the differences are. I have been tempted to "Hot Rod" my 4400 but its already better than everything short of the Shibasoku stuff so what would be the benefit?
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Old 29th September 2010, 03:48 AM   #22
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Hi gang

I got a Krohn Hite 4400A from a kind soul here,
does anybody have the schematics of the newer 4402B ?

Would love to compare/upgrade.

TIA

Gary G.
Exactly same here, would be grateful for a schematic or even better a service manual for one or both of these instruments.
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Old 29th September 2010, 07:47 AM   #23
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Well, I already uploaded these servicemanuals to Jan Duponts great site:

Audio Circuit Denmark

Give him a few days to check the integrity of the files, then they will be online.

BR

Gary
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Old 29th September 2010, 12:46 PM   #24
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Well, I already uploaded these servicemanuals to Jan Duponts great site:

Audio Circuit Denmark

Give him a few days to check the integrity of the files, then they will be online.

BR

Gary
Thanks Gary, that`s great news!
I have a few things I could upload there in return.
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Old 26th October 2011, 04:33 PM   #25
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Hello

I have the Krohn-Hite 4200A and I can't find the schematic, anyone have it ?

What is the difference between the KH 4200 and the KH 4400 and 4402 ?

Thank

Bye

Gaetan
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Old 26th October 2011, 06:19 PM   #26
ghg is offline ghg  Austria
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K H 4400A, 4402B:

THD ca. 0.0001%, fmax 100kHz



K H 4200:

Krohn Hite 4200A | Used Signal Generator | Used Test Equipment | Refurbished Test Equipment

THD 0.1%, fmax 10MHz

Hard to modify without schematics ...
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