PINBAR

PIN BAR

• All values are including the measuring cables!
• Nomenclature:
  • Greek numbers = Filter Box on the top
  • Xi = Plug at the corresponding Filter Box (e.g. : VI, X3 = Plug X3 at Filter Box VI ).
  • Xi:j = Pin j at Plug Xi (e.g. : VI, X3:4 = Pin 4 at Plug X3 at Filter Box VI ).
  • R_1/2 = Resistance between Pin 1 and 2 directly measured at a corresponding PIN BAR.
  • R_X3:1-2 = Resistance between Pin 1 at Plug X3 of the Filter Box and Pin 2 at the PIN BAR.
  • R_X3:1/2 = Resistance between Pin 1 and Pin 2 at Plug X3 of the Filter Box.

MIXING CHAMBER

There are six PIN BARS (A-F) mounted on the mixing chamber. Each consists of 16 PINS arranged in two columns.

BAR A

BAR A

PIN	CONNECTION	BOX	COMMENT
15	nc	?
13	nc	?
11	nc	?
9	nc	?
7	nc	?
5	nc	?
3	nc	?
1	nc	?

PIN	CONNECTION	BOX	COMMENT
16	nc	?
14	nc	?
12	nc	?
10	nc	?
8	nc	?
6	nc	?
4	nc	?
2	nc	?

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BAR B

BAR B

PIN	CONNECTION	BOX	COMMENT
15	nc	?
13	nc	?
11	nc	?
9	nc	?
7	nc	?
5	nc	?
3	nc	?
1	nc	?

PIN	CONNECTION	BOX	COMMENT
16	nc	?
14	nc	?
12	nc	?
10	nc	?
8	nc	?
6	nc	?
4	nc	?
2	nc	?

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BAR C

• No connection to BOX I, X7-X11!
• NO GROUND!

BAR C

PIN	CONNECTION	BOX	COMMENT
15	nc	?
13	nc	?
11	nc	?
9	T.P. 9-10	?	leads through capillary
7	CT MC	?	yellow s.t.
5	CT MC	?	5-8 leads trough textile tube
3	nc	?
1	nc	?

PIN	CONNECTION	BOX	COMMENT
16	nc	?
14	nc	?
12	nc	?
10	T.P. 9-10	?	capillary leads to 1K-pot
8	CT MC	?	yellow s.t. + black marked
6	CT MC	?	black marked
4	nc	?
2	nc	?

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BAR D

BAR D

PIN	CONNECTION	BOX	COMMENT
15	nc	?
13	nc	?
11	nc	?
9	nc	?
7	nc	?
5	nc	?
3	nc	?
1	nc	?

PIN	CONNECTION	BOX	COMMENT
16	nc	?
14	nc	?
12	nc	?
10	nc	?
8	nc	?
6	nc	?
4	nc	?
2	nc	?

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BAR E

BAR E

• Assignment of pins at Bar E. The number of each pin corresponds with that of the AMP-BOX.
• Resistance between Box VI and Pins: R_VI-E ~ 280${\Omega }$
• All values are including measuring cables!
• NO GROUNDS!

PIN	CONNECTION	BOX	COMMENT
1	ET ST	VI, X1:1
2	ET ST	VI, X1:2
3	FPD	VI, X2:1
4	FPD	VI, X2:3
5	FPD Degauss	VI, X3:1	R5/23=155.4${\Omega }$
6	nc	VI, X3:2
7	nc	VI, X4:1
8	HZ(?)	VI, X4:2	R8/26=1k${\Omega }$ , T.P. leads to strange heat sink at 1K

PIN	CONNECTION	BOX	COMMENT
19	ET ST	VI, X1:3
20	ET ST	VI, X1:4
21	FPD	VI, X2:4
22	FPD	VI, X2:3
23	FPD Degauss	VI, X3:4	RX3:1-4=714${\Omega }$
24	nc	VI, X3:3
25	nc	VI, X4:4
26	HZ(?)	VI, X4:3	RX3:1-4=1.65k${\Omega }$

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BAR F

• Resistance between Pin 6,7 and 8 is measured with connected Filterbox.
• Number in brackets "()" is the corresponding AMP-TEST-BOX connection.
• F1-F4 are connected to PIN-BAR S0 at Still-Level and via there to BOX-II.
• NO GROUNDS!

BAR F

P	CONNECTION	PLG	BOX	COMMENT
15	T.P. 15/16, ends at Still! ->n.c.!	S	I, X10:2	RX10:2-15=172.7${\Omega }$
13	nc	J	I, X9:3	RX9:3-13=169${\Omega }$
11	nc	K	I, X9:4	RX9:3-11=168.6${\Omega }$
9	nc	L,a	I, X10:3	RX10:3-9=177.9${\Omega }$
7	CT (FT) on MC, S5 at LR700	c	I, X6:4, X6:3	R7/8=122${\Omega }$
5	nc	V	I, X11:1	RX11:1-5=68.9${\Omega }$
3	nc	-	STILL S0:4	RS0:4-3=14${\Omega }$
1	nc	b	II,(10) , S0:6	RII,b-1=69${\Omega }$

P	CONNECTION	PLG	BOX	COMMENT
16	T.P. 15/16	M,Z	I, X10:4	sc with PIN 10 on backside
14	nc	M,Z	I, X10:4	sc with PIN 10 on backside
12	nc	M,Z	I, X10:4	sc with PIN 10 on backside
10	nc	M,Z	I, X10:4	RX10:4-10=47.7 k${\Omega }$
8	CT (FT) on MC, S5 at LR700	A-F	I, X2-X6:1-4	see here:circuit diagram
6	nc, same function as F8	A-F	-	R6/8=0.3${\Omega }$, R6/7=122${\Omega }$
4	nc	-	S0:1	RS0:1-4=14${\Omega }$
2	nc	Y	II,(21) , S0:3	RII,Y-2=69${\Omega }$

STILL

There are seven PIN BARS (0,A-F) mounted on the mixing chamber. Each consists of 16 PINS arranged in two columns.

BAR 0

• Connected to BOX II
• NO GROUNDS
• 07-011 are connected to heater of a persistent current switch on the bottom of the 4K-flansch (see picture)
• The backside of PIN 01,03,04,06 is connected PIN BAR F at the MC.