PINBAR

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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 ).
    • R1/2 = Resistance between Pin 1 and 2 directly measured at a corresponding PIN BAR.
    • RX3:1-2 = Resistance between Pin 1 at Plug X3 of the Filter Box and Pin 2 at the PIN BAR.
    • RX3:1/2 = 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 ?


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 ?


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 ?


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 ?


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: RVI-E ~ 280
  • 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
6 nc VI, X3:2
7 nc VI, X4:1
8 HZ(?) VI, X4:2 R8/26=1k , 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
24 nc VI, X3:3
25 nc VI, X4:4
26 HZ(?) VI, X4:3 RX3:1-4=1.65k


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
13 nc J I, X9:3 RX9:3-13=169
11 nc K I, X9:4 RX9:3-11=168.6
9 nc L,a I, X10:3 RX10:3-9=177.9
7 CT (FT) on MC, S5 at LR700 c I, X6:4, X6:3 R7/8=122
5 nc V I, X11:1 RX11:1-5=68.9
3 nc - STILL S0:4 RS0:4-3=14
1 nc b II,(10) , S0:6 RII,b-1=69
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
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, R6/7=122
4 nc - S0:1 RS0:1-4=14
2 nc Y II,(21) , S0:3 RII,Y-2=69


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.