Transformers with 1 Secondary Winding


Most part numbers link to a photo and (S) following a number indicates photo is of a different similar looking transformer.
Photos, determining spec's of unknown transformers, etc. is time consuming & often left until someone makes an enquiry so e-mail if more information is needed.  (M) following manufacture name indicates spec's are manufactures, otherwise spec's are based on core size and other parameters commonly used to determine unknown transformer spec's. Column SC is a core size code that's explained along with more about the spec's listed for unknown transformers in my Notes Regarding Transformer Spec's.
Don't forget to also check for transformers with 2 or 3 or more secondary's that can often be wired in parallel or series to obtain the voltage & current required.

Secondary VA S
C
Qty Transformer Pri. Notes   (LN = Like New) Cost
Number Manufacture
1.6V 22A 35va   1 66B-115MS Sanborn (M) 115 Stylus Heat Xformer for .075 ohm load.
Taps For: .75V, .90V, 1.15V or 1.6V
0.93kg 2¼" × 2" x 3⅛"h
$10
2.5V 2.5A 6.3va C 1 166L2 Hammond (M) 120 0.25kg 1⅞" × 1⅝" × 1½"h $10
2.5VCT 5.25A 13va   1 TF4RX01YY Audio Dev. Co. (M) 115/230 1.10kg 2⅜" x 2¼" x 3¼"h  NEW $12
4.0V 1.0A ≈4.0va B 1 A-T86B-3   120 0.19kg 1⅝" × 1½" × 1¼"h  
5.0VCT 2.6A 13va   1 F-54 CTC (M) 115/230 0.83kg 2⅜" x 2¼" x 3¼"h      (New is ≈$26) $15
6.3V 0.300A ≈1.9va A 1 6V0.3A   120 0.10kg 1½" × 1¼" × 1¼"h $5
0.500A ≈3.2va B 1 6V0.9A   120 0.16kg 1⅝" × 1¼" × 1¼"h  Philco 606323 $8
0.800A ≈5.0va B 1 9563024500   120/240 0.20kg 1⅝" × 1¼" × 1¼"h $8
1.0A 6.3va C 1 166J6 Hammond (M) 120 0.26kg 1⅞" × 1⅝" × 1⅝"h   LN $13
1.0A 6.3va D 1 167C60 (S) Hammond (M) 120 Photo is of a 166J6 and this is the older,
larger, better built version.  NEW
0.42kg 2¼" × 1⅞" × 1⅞"h
$16
6.3VCT 4.0A 25va G 1 167E60 Hammond (M) 120 Old version of 166N6. Photo is of another
unit with a modified shell, but shell on this
one has no opening cut in it.
1.10kg 2½" × 2⅝" × 3"h
$12
6.0A 38va G 1 167Q6 (S) Hammond (M) 120 0.97kg 3" x 2½" × 2⅜"h $14
8.0A 50va G 2 FT-8 UTC (M) 115 1.00kg 3" × 2⅜" x 2½"h $15
10.0A   1 F-610 CTC 115/230 2.10kg 3" × 3¼" × 4¼"h $20
7.0V 0.500A B 1 A-T86C-7 (S)   120 0.17kg 1⅝" × 1½" × 1⅜"h  
  C 1 TE-502-1D1 (S)   120 0.36kg 1⅞" × 1¾" × 1⅝"h  
7.5VCT   C 1 BT86B (S)   120 0.30kg 1⅞" × 1⅝" × 1⅝"h  
8.0V 0.650A ≈5.2va B 1 70C108D   120 0.20kg 1⅝" × 1⅝" × 1⅜"h  
  B 1 7-442-TK   120 0.20kg 1¼" × 1½" × 1⅝"h  
8.0VCT 0.500A 4va B 4 166G8 (S) Hammond (M) 120 Center Tap lead is cut short.
0.18kg 1⅝" × 1⅝" × 1⅜"h
$10
8.5V 2.0A 17va D 1 166L8 (S) Hammond (M) 120 0.54kg 2¼" × 2" × 1⅞"h $12
3.0A 26va F 1 166M8 (S) Hammond (M) 120 0.66kg 2⅝" × 2⅛" × 2¼"h   LN $15
9.0V 2.0A D 1 ES-57-062 (S)   120 0.54kg 2¼" × 2" × 1⅞"h  
9.5V 11.0A 104va G 5 H300145 Hammond (M) 120 1.60kg 2½" × 3⅛" × 3"h  NEW $35
10.0V 0.500A 5va D 2 NU10 Nortron (M) 120 Class 2, DoorBell Transformer
0.27kg 2¼" × 1¾" × 1⅞"h
$1
D 1 NU10 Nortron (M) 120 Class 2, DoorBell Transformer
0.36kg 2¼" × 1¾" × 1⅞"h
 
10.0A 100va J 1 E68715 Hammond (M) 115 3.60kg 3⅛" × 6" × 3¾"h $35
10.0VCT 0.200A ≈2va A 1 ES-35-375 (S)   115 0.12kg 1⅜" × 1⅛" × 1⅛"h  
11.0 V 3.0A 32va G 2 103264 Hammond (M) 115 Type H, Class A. Taps @ .5, 9, 10 & 11V
1.20kg 3" × 3" × 2½"h
$20
11.5V 2.5A ≈29va E 1 FH3-0152 (S)   120 0.71kg 2⅜" × 2¼" × 2"h  
12.0V 0.130A ≈1.6va A 1 5246607   120 0.08kg 1⅜" × 1" × 1⅛"h  
0.300A 3.6va B 1 S123 (M) 110/220 0.17kg 1⅝" × 1⅜" × 1⅜"h  
12.0VCT 0.450A 5.4va B 1 273-1365 (S) Radio Shack (M) 120 0.19kg 1⅝" × 1½" × 1⅜"h  
12.6V 0.300A 3.8va A 1 273-81385 Radio Shack (M) 120 0.10kg 1⅜" × 1" × 1⅛"h  
12.6VCT 0.150A ≈1.9va A 1 NT-019SR (S)   120 0.13kg 1⅜" × 1⅜" × 1⅛"h  
0.250A ≈3.2va B 1 N350-1   120 0.19kg 1⅝" × 1¼" × 1½"h  
0.300A 3.8va B 3 166F12 (S) Hammond (M) 120 0.15kg 1⅝" × 1⅜" × 1⅜"h $10
C 1 166F12 (S) Hammond (M) 120 Older Larger Style. CT lead cut short.
0.26kg 1" × 1⅝" × 1⅝"h
$10
1.0A 12.6va D 1 166J12 (S) Hammond (M) 120 0.42kg 1" × 1⅝" × 2¼"h $12
D 1 166J12 (S) Hammond (M) 120 0.40kg 2¼" × 1" × 1¾"h    No Bracket $10
1.0A 12.6va D 1 TRC12J FROST (M) 115 0.43kg 1" × 1⅝" × 2¼"h  NEW $10
1.2A 15.1va D 1 273-81505 (S) Radio Shack (M) 120 0.35kg 2¼" × 1⅜" × 1"h $10
2.0A 25.2va D 1 P-8130 (S) Stancor (M) 117 0..55kg 2¼" × 2" × 1"h 1500 W.V.rms  
2.5A 31.5va F 1 166L12 (S) Hammond (M) 120 0.65kg 2⅝" × 2¼" × 2¼"h $10
2.5A 31.5va F 1 F-26X Triad (M) 115 0.70kg 2⅝" × 2" × 2¼"h $10
3.0A 37.8va F 1 273-81511 (S) Radio Shack (M) 120 0.73kg 2⅝" × 2⅛" × 2¼"h   LN $10
14V 0.050A ≈0.7va   1 166B2357-018   120 0.07kg 1⅛" × 1" × 1"h  
0.800A ≈11va C 1 T-9020V (S)   120 0.30kg 1⅞" × 1⅜" × 1⅝"h  
0.800A ≈11va D 1 8664 ANKO 120 0.41kg 2¼" × 1" × 1"h  
30.0A ≈420va J 2 25D05340D01 Motorola 120/240 4.45kg 3¾" × 4¾" × 3⅛"h $70
14VCT 0.150A 2.1va A 1 166E14 (S) Hammond (M) 120 0.10kg 1⅜" × 1⅜" × 1⅛"h $12
0.500A 7va C 2 166G14 (S) Hammond (M) 120 0.25kg 1⅞" × 1⅜" × 1⅝"h $8
0.800A ≈11va D 1 PT-798 IDS 120 0.45kg 2¼" × 2" × 1"h  
2.0A 28va G 1 210A Hammond (M) 110/120 0.95kg 3" × 2½" × 2½"h  
15V 2.5A ≈37va G 1 25C05721C01   120/240 1.10kg 3" × 2⅝" × 2½"h  
16V 0.100A ≈1.6va A 1 FT-12   120 0.12kg 1⅜" × 1⅜" × 1⅛"h  
0.500A ≈8va C 1 CH3909D   120/240 0.27kg 1⅞" × 1⅜" × 1⅝"h  
0.700A ≈11va C 2 27047   120 0.33kg 1⅞" × 1¾" × 1⅝"h  
0.625A 10va D 2 NU16 Nortron (M) 120 Class 2, DoorBell Transformer
0.28kg 2¼" × 1¾" × 1⅞"h
$1
1.5A ≈24 D 1 TLP-3238   120 0.62kg 2¼" × 2¼" × 1"h  
2.0A ≈32 E 1 151-223G   120 0.98kg 2¼" × 2⅝" × 2⅝"h  
2.5A ≈40 F 1 5213472   120 1.10kg 2⅝" × 2⅛" × 2½"h  
3.5A ≈56   1 3003   120/240 1.17kg 2⅜" × 3" × 2¾"h  
16VCT 6.25A 100va G 6 DP-241-8-16 (S) Signal (M) 120/240 1.25kg 3" × 2¼" × 2½"h $15
6/$75
18V 1.5A ≈27va F 1 F1-13674   120 0.79kg 2¼" × 2" × 2⅝"h $10
2.5A ≈45va D 1 28U7ZP   120 0.82kg 2¼" × 2¼" × 1⅞"h $12
2.5A ≈45va F 1 K3360   120 1.14kg 2⅝" × 2⅞" × 2¼"h $15
    1 4-2511-36670   120 Shielded unit from a TV Camera.
0.66kg 2½" × 2" × 2⅞"h
 
18VCT 5.0A 90va G 2 167P18 Hammond (M) 120 1.85kg 2½" × 3¾" × 3"h $30
10.0A 180va J 1 167S18 (S) Hammond (M) 120 3.10kg 3" × 4½" × 3¾"h $45
19V 2.0A ≈38va G 1 25D84483E01   120 1.10kg 3" × 2⅜" × 2½"h  
20V 0.800A ≈16va C 1 JEC-1 JEC 120 20V sec. also has taps at 7.9V & 12V.
0.38kg 1⅞" × 2" × 1½"h
 
2.0A ≈40va E 2 2502419J01   120 0.87kg 2⅜" × 2½" × 2"h  
8.8A 176va H 1 24-10234-01 (S) (M) 115 1.97kg 3⅜" × 3¼" × 2¾"h   NEW $45
20VCT 0.100A 2va A 3 166D20 (S) Hammond (M) 120 0.13kg 1⅜" × 1½" × 1"h   NEW $15
0.150A 3va B 1 166E20 (S) Hammond (M) 120 0.15kg 1⅝" × 1½" × 1⅜"h   LN $15
0.200A ≈4va B 3 30-00103-010   120 0.14kg 1⅝" × 1½" × 1⅜"h  
0.800A ≈16va D 1 879-0052   120 0.48kg 2¼" × 1⅞" × 2½"h  
1.0A 20va F 1 166J20 (S) Hammond (M) 120 0.61kg 2⅝" × 2" × 2¼"h $12
22V 0.500A 11va C 1 X2205 (S) (M) 120 0.37kg 1⅞" × 2" × 1⅝"h  
24V 0.083A 2va A 4 360-2105 (M) 120 0.10kg 1⅜" × 1⅛" × 1⅛"h  
0.833A 20va D 2 592 Edwards (M) 120 Class 2, also 8 & 16V @ 10VA
0.41kg 2¼" × 1¾" × 1⅞"h
 
1.0A ≈24va D 2 25D05747G01 (S)   120 0.62kg 2¼" × 2¼" x 1⅞"h  
1.9A 45va F 1 BE02841-001 Basler (M) 115/208
/240
Class 2
0.83kg 2¼" × 2⅜" × 2⅞"
 
3.0A 75va G 2 MMC-6286 (S)   120 Leads over 12" long
1.48kg 2½" × 2¾" × 3"
$25
24VCT 0.400A ≈10va C 1 1207-NC (S)   120 0.34kg 1½" × 1¾" x 1⅞"h  
25V 0.300A 7.5va B 1 273-81386 (S) Radio Shack (M) 120 0.16kg 1⅝" × 1¼" x 1⅜"h  NEW  
0.800A 20va   1 AT20B1015 Honeywell (M) 120 0.38kg Class 2, Control Transformer  
1.2A 30va D 1 273-81480 (S) Radio Shack (M) 120 0.55kg 2¼" × 1¾" x 1⅞"h  NEW  
1.6A 40va F 1 AT72E1096 Honeywell (M) 120 Class 2, Control Transformer
0.74kg 2⅝" × 2¾" x 2¼"h
 
25VCT 0.100A 2.5va B 1 166D25 (S) Hammond (M) 120 0.16kg 1⅝" × 1½" x 1¼"h  (Bad Bracket) $12
0.500A 12.5va D 1 166G25 (S) Hammond (M) 120 0.50kg 2¼" x 1⅞" × 2"h  (No Bracket) $10
1.0A 25va F 1 166J25 (S) Hammond (M) 120 0.66kg 2⅝" × 2¼" x 2"h  (Bad Bracket) $12
1.0A 25va F 1 166J25 (S) Hammond (M) 120 0.61kg 2⅝" × 2¼" x 2"h  (No Bracket) $12
26V 0.400A ≈11va D 1 4580198-01   120 0.55kg in metal box 2" x 2½" x 1¾"  
0.700A ≈18va B 1 73911 Hammond 120 0.29kg 1⅝" × 2" x 1¼"h $10
26VCT 0.150A ≈3.9va B 1 LV004   120 0.16kg 1⅝" × 1½" x 1¼"h  
5.0A 130va K 1 210H (S) Hammond (M) 110/120 3.46kg 3¾" × 4¼" × 4½" $35
28V 0.500A ≈14va D 1 P5066CH   120 P5066CH / 15Z2ZP-S / B-P54-22R
0.50kg 2¼" × 1⅞" x 2"h
 
2.5A ≈70va D 2 FH3-0156   115 FH3-0156 / ETP57P35A
1.00kg 3" × 1⅞" x 2¼"h
$25
2.0A ≈56va F 2 FF1-3671   120 28V or 33V depending on pri. tap used
1.10kg 2⅝" × 2⅞" x 2¼"h
 
28VCT 0.500A 14va D 1 166G28 (S) Hammond (M) 120 0.42kg 2¼" × 1⅝" x 1⅞"h $10
0.800A ≈22va D 1 549-7936   120 0.56kg 2¼" × 2⅜" x 1⅞"h  
1.0A 28va F 1 166J28 (S) Hammond (M) 120 0.65kg 2⅝" × 2" x 2¼"h   NEW $15
1.0A 28va F 1 166J28 Hammond (M) 120 0.59kg 2⅝" × 2¼" x 2"h  (No Bracket) $12
30VCT 0.150A ≈4.5va B 1 DK-152   120 0.15kg 1⅝" × 1⅜" x 1¼"h  
1.2 36va   1 66B-80MS Sanborn (M) 115 0.87kg 2¼" × 2" x 3"h, Mil Spec  
3.0A 90va G 1 167M30 (S) Hammond (M) 115 1.85kg 2½" × 3¾" x 3"h   LN $35
3.0A 90va G 1 167M30 Hammond (M) 115 1.75kg 3" × 2½" x 3¼"h  (No Shells)   LN $30
5.0A 150va J 1 165P30 Hammond (M) 120 2.68kg 3¾" × 3⅝" × 3⅛"   LN $40
32VCT 0.600A ≈20va D 1 5700112 (S) ACME 120 ACME ELECTRIC CORP
0.55kg 2¼" x 1⅞" × 2"h
 
0.600A ≈20va D 4 5700115D   120 5700115D / B1140-13
0.54kg 2¼" x 1⅞" × 1¾"h
 
36V 5.0A ≈195va J 2 FT-1469 FROST 120 3.00kg 3⅛" × 3½" x 3¾"h   NEW $45
5.0A 180va K 1 210P (S) Hammond (M) 120 Sec tapped for 28, 31, 34V or 36V
4.83kg 3¾" × 5" x 4½"h
$40
36VCT 0.150A 5.4va C 2 166E36 (S) Hammond (M) 120 0.26kg 1⅞" × 1½" x 1⅝"h   NEW $15
0.500A ≈18va D 2 285P150   120 0.55kg 2¼" × 1⅞" x 2¼"h $20
1.0A 36va G 1 166J36 (S) Hammond (M) 120 0.95kg 3" × 2¼" x 2½"h   LN $20
1.5A 56va F 1 DP-241-7-36 (S) Signal (M) 120/240 0.76kg 2⅝" × 2" x 2¼"h   NEW $20
2.0A 72va G 2 410-0127   120/240 ???kg 3" x 2½" × 3"h
Curently in a 12VDC Power Supply
$25
2.0A 72va G 4 7113-83077 FROST (M) 120 1.47kg 3" × 3" x 2½"h  Class A $25
3.0A 108va J 2 167M36 (S) Hammond (M) 120 2.15kg 3⅛" × 3½" x 3¾"h  NEW $35
12.0A 432va K 1 167T36 (S) Hammond (M) 120 6.81kg 3¾" × 6" x 4½"h   NEW $70
40VCT 0.350A ≈14va C 2 P-100224   120 0.35kg 1⅞" × 2" x 1½"h $15
42VCT 0.230A ≈10va D 1 A-07-2870 FILTRAN 115 Secondary taps also provide 14VCT
0.39kg 2¼" × 1⅞" × 1½"h
 
46VCT 28A 1290
va
  1 104-000148-04   120/240 100/120/200/220/240V Pri. Taps
12.6kg 5" x 6" x 6"h  Schematic
$100
OBO
48V     1 4580156-01   120 in metal box
2.35kg 3⅝" × 3" x 3⅜"h
 
50VCT 6.0A ≈300va   1 104-000164   120/240 4.00kg 4⅛" x 3½" x 4"h  Schematic $50
11.0A ≈550va   1 104-000206-02   120/240 100/120/200/220/240V Pri. Taps
12.7kg 5¼" x 6" x 5¾"h  Schematic
$70
60VCT 3.3A ≈195va J 1 023-3444 (S) Staco 120 Multi-tap Pri & Sec
2.97kg 3⅛" × 3¾" x 3¾"h   Schematic
$45
64VCT .800A ≈50va G 1 10724A Royal 120/240 Sec tapped at 16V (32V-16V-0-16V-32V)
1.17kg 3" × 2½" x 2⅜"h
 
65V 1.1A 70va G 1 1-017-5417F   120/240 1.55kg 3" × 3" x 2½"h  Schematic $25
70V 1.0A 70va G 1 1-017-5417D (S)   120/240 1.55kg 3" × 3" x 2½"h  Schematic $25
70VCT 0.650A ≈45va G 1 306840-1
549-7102
  120/240 from Ampex Transistor PA Amp
1.30kg 2½" × 2⅞" × 3"h
 
1.0A ≈70va G 1 6-003-0540A   120/240 In a Ball monitor 60VDC power supply.
1.53kg 2½" × 3" × 3"h  (1.84kg w/ P.S.)
$25
80VCT 0.650A ≈52va   1 83-754-000   120 2.15kg 4⅛" x 3½" x 2¾"h  

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