Tandy 1000 SL Technical Reference Manual page 296

I f
GSC-GS1
i s s h o r t e d o r connected
w i t h
a c a p a c i t o r , it i s i n c r e a s e d
t o 230
t i m e s ,
approx.
( d ) PREO ( p i n 7 , p i n 6 )
D i f f e r e n t i a l o u t p u t t e r m i n a l s
of t h e
p r e - a m p l i f i e r .
p i n 6 and 7 a r e o p p o s i t e each o t h e r . Refer t o Fig.204.
The phase of
2 . 7 V l approx.
2 . 7 V
I
approx.
Read
-
( 2 ) D i f f e r e n t i a t i o n a m p l i f i e r
Write
( a ) DIFI ( p i n 5 , p i n
4 )
D i f f e r e n t i a l i n p u t t e r m i n a l s t o t h e d i f f e r e n t i a t i o n a m p l i f i e r .
The phase of p i n 5 and
4
a r e o p p o s i t e each o t h e r .
- . 2 .
SV,
approx.
2 . SV, approx.
Read
-
(b) DIFC ( p i n 3 , p i n 2 )
Write
T i m e c o n s t a n t s e t t i n g t e r m i n a l s o f t h e d i f f e r e n t i a t i o n a m p l i f i e r .
The phase of p i n 3 and 2 a r e o p p o s i t e each o t h e r .
A-
1.1v,
approx. 1. l V ,
approx.
W r i t e
-
Read
-
-
217
-