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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
  146-0121-S
$22.43
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
Details at
bottom of page
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
  065206-002
  RBQ217
$75.00
$25.00
Details at
bottom of page
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
Details at
bottom of page
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
  All carbon now
  RB10C-40
  030098-004
$22.50
$12.50
Details at
bottom of page
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
All carbon, was brass and carbon
RB12
  030098-005
$22.50
$7.50
Details at
bottom of page
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
Details at
bottom of page
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
$97.50
$32.50
Details at
bottom of page
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
Details at
bottom of page
              21-40
RB22
  060117-001
$76.50
$25.50
Details at
bottom of page
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 $67.50
$22.50
Details at
bottom of page
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
Details at
bottom of page
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
  RB117C
  RB3600
  065431-001

Variac RB116B Drawing
$127.50
$42.50
Details at
bottom of page
0.375" 0.375" 0.750" 0.187"
tapers to
0.062"
0.250" 0.157" Black E Variac1, 116-B, RB-116,
RB-116C, RB-117B, RB-3600
Holes are 1.062" center to center
Holes are 0.153" diameter
RB116B-40
  RB116C-40
  065431-004
$92.70
$30.90
Details at
bottom of page
0.375" 0.375" 0.750" 0.187" 0.250" 0.157" Black E Figure RB116B-40,
116-B-40
RB126
  122819-001
$127.50
$42.50
Details at
bottom of page
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
$127.50
$42.50
Details at
bottom of page
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
Details at
bottom of page
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
$151.50
$50.50
Details at
bottom of page
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
Details at
bottom of page
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
  RB217B
  RB217C
  065431-002
$51.00
$17.00
Details at
bottom of page
0.375" 0.375" 0.750" 0.187"
tapers to
0.047"
0.250" 0.187" Graphite G Variac1, 216-B, 216-C, 217-C
Holes are 1.062" center to center
Holes are 0.153" diameter
RB226
  122819-002
$88.50
$29.50
Details at
bottom of page
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
$88.50
$29.50
Details at
bottom of page
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
$135.00
$45.00
Details at
bottom of page
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
RB1126
  RB1226
$34.50
$11.50
Details at
bottom of page
0.250" 0.500" 0.875" 0.125"
tapers to
0.042"
0.225" 0.225" Graphite G VariacB,
1.500" lead with D-0.144" terminal
RB1156 $37.50
$12.50
Details at
bottom of page
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
$184.50
$61.50
Details at
bottom of page
0.500" 0.500" 0.900" 0.187" <0.500" 0.281" Black E Variac2,
1156-B, 1156-D
Holes are 0.943" center to center
Holes are 0.218" diameter
RB1256 $37.50
$12.50
Details at
bottom of page
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
$147.00
$49.00
Details at
bottom of page
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
$147.00
$49.00
Details at
bottom of page
0.500" 0.500" 0.900" 0.187"
tapers to
0.093"
0.455" 0.281" Black E Variac2, 1296-D
Holes are 0.943" center to center
Holes are 0.215" diameter
RBLW1X56-30.60 $147.00
$49.00
Details at
bottom of page
0.500" 0.500" 0.900" 0.187" 0.455" 0.281" Graphite G Variac2,
Holes are 0.943" center to center
Holes are 0.215" diameter
RB1800
  WDB1800
$117.00
$39.00
Details at
bottom of page
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
Details at
bottom of page
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
RB6000
   RB-6000
$97.50
$32.50
Details at
bottom of page
0.500" 0.500" 0.900" 0.187" <0.500" 0.281" Black E Variac 2, D6000
Holes are 0.943" center to center
Holes are 0.175" diameter

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

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Figure VB-1 Drawing      Figure VB-1T Drawing
Part Price
Retip your old
assembly or
exchange discount
Brass Carbon Material Notes
Thickness Width Length Thickness Width Length
VB-1
  3200-5901
$52.50
$17.50
Details at
bottom of page
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
$52.50
$17.50
Details at
bottom of page
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 $52.50
$17.50
Details at
bottom of page
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
$52.50
$17.50
Details at
bottom of page
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 $52.50
$17.50
Details at
bottom of page
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 $52.50
$17.50
Details at
bottom of page
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"

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

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Variac 1 Drawing        Figure VBT6 Drawing        Variac
                VB-8 Drawing     Figure VB-10
                Drawing      Figure VB-10T Drawing      Figure VBT-12 Drawing      Figure VBT-14 Drawing
Part Price
Retip your old
assembly or
exchange discount
Brass Carbon Material Notes
Thickness Width Length Thickness Width Length
VBT-6
  3200-5906
$321.00 $107.00
Details at
bottom of page
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
Details at
bottom of page
              W50H
VBT-7 $321.00 $107.00
Details at
bottom of page
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
Details at
bottom of page
      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
Details at
bottom of page
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
Details at
bottom of page
              M10, W10
VBT-10 $93.00
$31.00
Details at
bottom of page
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
Details at
bottom of page
              W10H
VBT-11 $87.50 call for rfq $27.50
Details at
bottom of page
0.333" 0.625" 0.575" 0.064" 0.312" 0.275" Black E Figure VB-10T,
Holes are 0.875" center to center
VBT-12
  3200-5912
$102.00
$34.00
Details at
bottom of page
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
VBT-13
  3200-5913
$189.00
$63.00
Details at
bottom of page
0.333" 0.625" 0.575" 0.125" 0.330" 0.281" Black E Figure VBT-14
Holes are 0.875" center to center
Holes are 0.165" diameter
Lead 1.312", Terminal: C-0.140"
W30
VBT-14
  3200-5914
$189.00
$63.00
Details at
bottom of page
0.333" 0.625" 0.575" 0.062" 0.330" 0.250" Black E Figure VBT-14
Holes are 0.875" center to center
Holes are 0.165" diameter
Lead 1.187", Terminal: C-0.140"
W30H

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

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808-0124-S assembly
Part Price
Retip your old
assembly or
exchange discount
Brass Carbon Material Notes
Thickness Width Length Thickness Width Length
808-0124-S $125.00
$42.50
Details at
bottom of page
0.500" 0.500" 0.500" 0.077" 0.500" 0.218" Black E Holes are 0.875" center to center
Holes are 0.150" x 0.225" oval
1520, J401
812-0545 $51.00
$17.00
Details at
bottom of page
0.500" 0.855" 0.500" 0.170"
tapers to
0.125"
0.600" 0.218" Graphite G Holes are 0.875" center to center
Holes are 0.150" x 0.225" oval

Variac Brush Assembly Retip Service

We are able to replace the carbon tip(s) of Variac brush assemblies for 1/3 of the cost of a new assembly.

1. Send in your old variac brush assebly.
2. We will remove the old carbon and adhesive and install new carbon to the original dimensions with conductive silver epoxy.