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Variable Transformer Brushes
General Radio, Powerstat, Staco Energy Products, Superior Electric, Variac, Weschler

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Figure RB10 Drawing     Figure T Bird Drawing     tbird2 drawing Variac 1 Drawing           Variac 3A Drawing
Part Price
Retip your old
assembly or
exchange discount
Brass Carbon Material Notes
Thickness Width Length Thickness Width Length
9T18Y900
  RB10B
  RB10BM
  RB10C
  RB12C
  030098-001
$13.50
N/A N/A N/A N/A t1=0.310"
t2=0.114"
t3=0.050"
w=0.156" l1=0.218"
l2=0.050"
l3=0.050"
Black E Figure tbird,
146-0121-S, 10-B, 10-C, 12-C,
171, 201, 201-40, 221, 221B, 251,
252, 291, 511, 3PN221B,
3PN501B
RBQ116
  065206-001
  RBQ117
  RB-Q117
  065206-003
$75.00
$25.00
call for details
0.250" 0.250" 0.470" 0.125"
tapers to
0.062"
0.245" 0.125" Black E Variac1, RB-Q116
Holes are 0.500" center to center
Holes are 0.118" diameter
RBQ216
  065206-003
  RBQ217
$75.00
$25.00
call for details
0.250" 0.250" 0.470" 0.156"
tapers to
0.036"
0.245"
tapers to
0.187"
assymetrically
0.125" Gray E Variac1, RB-Q216, RB-Q217
Holes are 0.500" center to center
Holes are 0.118" diameter
RB10 $37.50
$12.50
call for details
0.375"
hole diam.
0.281" 1.375" 0.250"
tapers to
0.032"
0.150" 0.144" Black E Figure RB-10,
10, RB-10
RB10B-40
  RB10C-40
  030098-004
$37.50
$12.50
call for details
t1=0.312"
t2=0.128"
w=0.153" l1=0.153"
l2=0.089"
l3=0.107"
t2=0.125"
t3=0.084"
w=0.125" 0.125" Black E Figure tbird2,
10-C-40
RB12
  030098-005
$22.50
$7.50
call for details
t1=0.310"
t2=0.128"
w=0.092" 0.162" t3=0.125"
tapers to
0.047"
w=0.092" 0.102" Black E Figure tbird2,
12, RB-12
RB20 $58.50
$19.50
call for details
0.306" 0.300" 0.600 0.156"
tapers to
0.050"
0.250" 0.187" Black E Figure Variac3A, 20, RB-20
Plate: 0.450 x 1.156"
Elongated Hole: 0.142 x 0.204"
RB21
  060098-001
$69.00
$23.00
call for details
0.312" 0.312" 0.500" 0.164"
tapers to
0.062"
0.250" 0.164" Black E Variac1, 21
Holes are 0.565" center to center
Holes are 0.150" diameter
RB21-40
  060098-002
$63.00
$21.00
call for details
              21-40
RB22
  060117-001
$51.00
$17.00
call for details
0.312" 0.301" 0.467" 0.156"
tapers to
0.032"
0.193" 0.156" Gray E Variac1, 22, RB-22
Holes are 0.590" center to center
Holes are 0.153" diameter
BHD35625G1 $51.00
$17.00
call for details
0.312" 0.301" 0.593" 0.187"
tapers to
0.064"
0.250" 0.187" Gray E Variac1, for Type 20

Variable Transformer Brushes
General Radio, Powerstat, Staco Energy Products, Superior Electric, Variac, Weschler

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Variac RB116B-40 Drawing     Variac 1 Drawing               
Part Price
Retip your old
assembly or
exchange discount
Brass Carbon Material Notes
Thickness Width Length Thickness Width Length
RB116 $63.00
$17.00
call for details
0.375" 0.375" 0.884" 0.187"
tapers to
0.062"
0.250" 0.281" Black E Variac3, 116, RB-116
Plate: 0.500' x 1.411"
Hole: 0.173" x 0.236"
RB116B
  RB116C
  RB117B
  065431-001
$63.00
$17.00
call for details
0.375" 0.375" 0.884" 0.187"
tapers to
0.062"
0.250" 0.281" Black E Variac1, 116-B, RB-116,
RB-116C, RB-117B
Holes are 1.062" center to center
Holes are 0.153" diameter
RB116B-40
  RB116C-40
  065431-004
$72.00
$24.00
call for details
0.375" 0.375" 0.750" 0.187" 0.250" 0.157" Black E Figure RB116B-40,
116-B-40
RB126
  122819-001
$97.50
$32.50
call for details
0.500" 0.500" 0.562" 0.187"
tapers to
0.093"
0.444" 0.160" Black E Variac1, 126
Holes are 0.750" center to center
Holes are 0.156" diameter
RB136
  056135-001
$87.00
$29.00
call for details
0.500" 0.750" 0.780" 0.187"
tapers to
0.125"
0.695" 0.218" Black E Variac1, 136, RB-136
Holes are 1.000" center to center
Holes are 0.167" diameter
RBLW136
  056223-001
$78.00
$26.00
call for details
0.500" 0.740" 0.780" 0.375" 0.685" 0.205" Gray E Variac1, RB-LW-136
Holes are 1.000" center to center
Holes are 0.168"
RB146
  176012-001
$95.25
$31.75
call for details
0.500" 0.437" 0.815" 0.187" inner
0.250" outer
0.406" 0.218" Black E Variac2, 146, RB-146,
Holes are 1.625" center to center
Holes are 0.187" diameter

Variable Transformer Brushes
General Radio, Powerstat, Staco Energy Products, Superior Electric, Variac, Weschler

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Variac 1 Drawing                    Figure
                Variac4 Drawing
Part Price
Retip your old
assembly or
exchange discount
Brass Carbon Material Notes
Thickness Width Length Thickness Width Length
RB216/RB217
  RB216
  RB217
$51.00
$17.00
call for details
0.375" 0.360" 0.875" 0.187"
tapers to
0.047"
0.325"
tapers to
0.187"
assymetrically
0.270" Graphite G Variac3,
Plate: 0.490" x 1.427"
Hole: 0.175" x 0.240"
RB216B
  RB216C
  RB217C
  065431-002
$51.00
$17.00
call for details
0.375" 0.375" 0.750" 0.187"
tapers to
0.047"
0.250" 0.250" Graphite G Variac1, 216-B, 216-C, 217-C
Holes are 1.062" center to center
Holes are 0.153" diameter
RB226
  122819-002
$72.00
$24.00
call for details
0.500" 0.343" 0.562" 0.187"
tapers to
0.042"
0.222" 0.178" Black E Variac1, 226, RB-226
Holes are 0.750" center to center
Holes are 0.153" diameter
RB236
  056135-002
$72.00
$24.00
call for details
0.500" 0.500" 0.780" 0.187"
tapers to
0.062"
0.408" 0.172" Gray E Variac1, 236, RB-236
Holes are 1.000" center to center
Holes are 0.170" diameter
RB246
  176012-002
$78.00
$26.00
call for details
0.500" 0.437" 0.812" 0.187"
tapers to
0.093
0.408" 0.187" Gray E Variac4, 246
Holes are 1.625" center-to-center
Holes are 0.187" diameter

Variable Transformer Brushes
General Radio, Powerstat, Staco Energy Products, Superior Electric, Variac, Weschler

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Variac 1 Drawing                     Figure Variac B Drawing
Part Price
Retip your old
assembly or
exchange discount
Brass Carbon Material Notes
Thickness Width Length Thickness Width Length
RB1156 $37.50
$12.50
call for details
0.500" 0.500" 0.860" 0.187" <0.500" 0.270" Gray E VariacB,
1.875" lead with D-0.144" terminal
RB1156B
  RB1156C
  RB1156D
  017702-003
$97.50
$32.50
call for details
0.500" 0.500" 0.900" 0.187"
tapers to
0.125"
<0.500" 0.281" Gray E Variac2,
1156-B, 1156-D
Holes are 0.943" center to center
Holes are 0.165" diameter
RB1256 $37.50
$12.50
call for details
0.500" 0.500" 0.875" 0.187"
tapers to
0.150"
0.462" 0.312" Black E VariacB,
2.187" lead with D-0.171" terminal
RB1256B
   RB1256C
   RB1256D
   017702-004
$97.50
$32.50
call for details
0.500" 0.500" 0.900" 0.187"
tapers to
0.125"
<0.500" 0.281" Gray E Variac 2,
A212609-1, 1256-B, 1256-C
Holes are 0.943" center to center
Holes are 0.215" diameter
RB1296D
  017702-012
$93.00
$31.00
call for details
              Variac2, 1296-D
RB1800
  WDB1800
$97.50
$32.50
call for details
0.500" 0.750" 0.780" 0.187"
tapers to
0.125"
0.695" 0.187" Black E Variac1, 1800, RB-1800
Holes are 1.000" center to center
Holes are 0.167" diameter
RB2500 $78.00
$31.00
call for details
0.500" 0.500" 0.780" 0.187" 0.470" 0.187" Black E Variac1,
Holes are 1.000" center to center
Holes are 0.167" diameter

Variable Transformer Brushes
General Radio, Powerstat, Staco Energy Products, Superior Electric, Variac, Weschler

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Variac 1 Drawing                 Figure VB-1
                Drawing      Figure VB-1T Drawing     Figure VBT6 Drawing     Variac
                VB-8 Drawing     Figure VB-10
                Drawing      Figure VB-10T Drawing      Figure VBT-12 Drawing
Part Price
Retip your old
assembly or
exchange discount
Brass Carbon Material Notes
Thickness Width Length Thickness Width Length
VB-1
  3200-5901
$45.00
$15.00
call for details
0.375" diameter 0.531" 0.062" 0.187" 0.125"
extended
Black E Figure VB-1, M2, W2, W5H
0.625" base width
VB-2
  3200-5900
$45.00
$15.00
call for details
0.375" diameter 0.531" 0.092" 0.250" 0.125"
extended
Gray E Figure VB-1, M5, W5, W5L, W5MT3,
W5MT3A, 0.625" base width
VBT-2 $45.00
$15.00
call for details
0.375" diameter 0.531" 0.092" 0.250" 0.125"
extended
Gray E Figure VB-1T,
0.625" base width
Lead 1.062" Terminal: C-0.156"
VB-3
  3200-5923
$45.00
$15.00
call for details
0.375" diameter 0.531" 0.062 0.250" 0.125"
extended
Gray E ~Figure VB-1T, W8, W8L
0.625" base width
Lead 1.062" Terminal: Special U shape
VBT-4 $45.00
$15.00
call for details
0.375" diameter 0.531" 0.062" 0.312" 0.125"
extended
Graphite G Figure VB-1T,
0.625" base width
Lead 1.062" Terminal: C-0.156"
VBT-5 $45.00
$15.00
call for details
0.375" diameter 0.531" 0.175" 0.250" 0.125"
extended
Black E Figure VB-1T,
0.625" base width
Lead 1.062" Terminal: C-0.156"
VB-6
  3200-5906
$321.00 call for rfq $107.00
call for details
              W50
VBT-6 $321.00 $107.00
call for details
0.333" 0.625" 0.575" 0.150" 0.330" 0.250" Black E Figure VBT-6,
Holes are 2.250" center to center
Holes are 0.125" diameter
Leads 1.062" Terminals: C-0.125"
W50
VB-7
  3200-5907
$321.00 call for rfq $107.00
call for details
              W50H
VBT-7 $321.00 $107.00
call for details
0.333" 0.625" 0.575" 0.093" 0.330" 0.281" Black E Figure VBT-6,
Holes are 2.250" center to center
Holes are 0.125" diameter
Leads 1.062" Terminals: C-0.125"
VB-8
  3200-5908
$105.00 call for rfq $35.00
call for details
      0.092"       Figure VB-8,
Holes are 0.875" center to center
Holes are 0.187" diameter
for models: M20, W20
Warburton Franki
VBT-8 $102.00
$34.00
call for details
0.333" 0.625" 0.575" Inside:
0.125"
Outside:
0.093"
0.330" 0.281" Black E Figure VBT-12,
Holes are 0.896" center to center
Holes are 0.155" diameter
Leads 1.187", Terminals: C-0.140"
W20, W20M, W20MT, M20, W20BB
VB-10
  3200-5910
$93.00 call for rfq $31.00
call for details
              M10, W10
VBT-10 $87.50
$27.50
call for details
0.333" 0.625" 0.575" 0.092" 0.333" 0.250" Black E Figure VB-10T,
Holes are 0.875" center to center
Holes are 0.165" diameter
Lead 1.750", Terminal: C-0.156"
VB-11
  3200-5911
$93.00 call for rfq $31.00
call for details
              W10H
VBT-11 $87.50
$27.50
call for details
0.333" 0.625" 0.575" 0.064" 0.312" 0.275" Black E Figure VB-10T,
Holes are 0.875" center to center
Holes are 0.165" diameter
Lead 1.750", Terminal: C-0.156"
VB-12
  3200-5912
$102.00 call for rfq $34.00
call for details
              W20H
VBT-12 $102.00
$34.00
call for details
0.333" 0.625" 0.575" 0.062" 0.330" 0.250" Black E Figure VBT-12,
Holes are 0.896" center to center
Holes are 0.155" diameter
Leads 1.187", Terminals: C-0.140"
W20H
VB-13
  3200-5913
$159.00 call for rfq $53.00
call for details
              W30
VB-14
  3200-5914
$159.00 call for rfq $53.00
call for details
              W30H