Heathkit EU 900 NA Schematic
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Extracted text from Heathkit EU 900 NA Schematic (Ocr-read)
Page 1
ANALO 6- TO-
DIGITAL
CO NVERTER
1
174 100K
IN
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.
.-
_: fl: 100K
5
-IN
+1N
e
BALANCE
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o
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M. cur 45v ~15v
A A ¢ 3.
+155! +5v i- -15v (D (9 C3)
- 3150-25
OPERATIONAL
AMPLIFIER
® ®
'I'IN -IN
TOP VI EW
SCHEMATIC OF THE
HEATH
OPERATIONAL AMPLIFIER CARD
MODEL EU-QOO-NA