Power transformers for sale,
P37 to P103, March 2011.
How to understand the tables below:-
Power transformers are numbered P37 to P103.
VA = Maximum continuous Input current in amps rms x Input Vrms.
pcs = number of pieces in stock.
HT = High Tension Vrms of highest voltage of secondaries.
Where just one voltage is given, it means there is a single untapped winding
with the voltage show.
Where a HT winding has one of more taps the tap voltages are given after
the maximum voltage.
Where a HT winding has a CT, the winding is given as Vrms-0-Vrms.
The HT winding current is the equivalent winding rms current based on
estimated VAout of the HT winding / HT voltage, Vrms.
B+ = Vdc produced under medium load conditions and is calculated
as HT Vrms x 1.35. Vdc is given for taps on windings.
It is assumed diodes will all be silicon and directly charge a capacitor
with reactance at twice mains frequency < 1/50 of the amp load,
ie, Vdc / Idc.
Ib = dc output current from capacitor amp load.
Where TWO Ib are stated for a transformer it means there are
TWO HT windings, for anode and screen/input stage supply.
Bias Vrms = voltage supply for generating grid bias for output tubes etc.
Bias Irms = maximum bias current from bias winding. In practice,
bias currents should be well below the mA shown.
The possible Vdc and Idc for bias supplies may vary depending on
the type of rectifier, bridge or doubler etc, so Vdc&Idc are not given.
Fils Vrms = filament heater winding voltage.
Where more than one filament winding exists, it shows say 6.3V x 2 or more.
Fils IArms = filament heater winding current maximum.

Where more than one filament winding exists, it shows say
4A x 2 or more.

Core type = type of cores used. These are mostly double 00 C-cores
but some have a single 0 C-core. Some PT have E&I laminations
and a few are potted in a soldered hermetically sealed with tar
or epoxy potting compound while a few are sealed in a pot
while immersed in transformer oil.

Price is in Australian Dollars at time of purchase. 
 

Number VA
pcs
HT,
Vrms,
include
taps
HT,
Irms mA
Max
B+, +Vdc
Si diodes
Ib
mAdc
Max
Bias,
Vrms
Bias,
Irms
mA
Max
Fils,
Vrms x
No of
windings 
Fils,
IArms x
No of
windings
Core
type
Price,
$AUD
ONE
trans.
P37
400
1
310
500
+418
350


6.3V x 2
4A x 2
EI
$100
P38
170
4






6.3V x 3
9A x 3
EI
$100
P39
500
2
350
700
+470
500


6.3V x 10
2.3A x 10
C-core
$400
P40
500
2
330
800
+445
560
 

5.1V x 16
15V
1.5A x 16
1.5A
C-core
$400
P41
400
1
309
700
+417
500
60
100
6.3V x 2
5A x 2
C-core
$350
P42
400
2
630, 600
260
300
200
+850,+810
+351
212
140


6.3V x 5
2A x 5
C-core
$350
P43
400
2
216-0-216
250
500
200
+291
+335
350
140


6.3V x 2
16V
5A x 2
1.5A
C-core
$350
P44
400
2
470, 420
600
+634, +567
420
60
100
6.3V
15V
4A
1.5A.
Ccore
$350
P45
180
1
370, 350, 330
300
+500, +472, +445
210
150
100
6.3V x 4
3A x 4
EI
$120
P46
350
2
250, 240, 230
800
+337, +324, +310
560
50
100
13V x 2
15V
3A x 2
1A
Ccore
$325
P47
400
2
390-0-390
150-0-150
400
300
+526
+202
280
210


3V x 5
6.3V
12.6V
18.5V
2.4A x 5
1.5A
0.8A
2A
Ccore
$350
P48
400
2
320
700
+432
500
60
100
6.3V
6A
Ccore
$350
P49
400
2
400
310
600
200
+540
+418
420
140
60
100
6.3V
16
4A
1.5A
Ccore
$350
P50
400
2
350-0-350
500
+472
350
70
100
3.3V x 2
5.1V
7V
3A x 2
4A
1.2A
Ccore
$350
P51
400
2
320
800
+432
560
60
100
6.3V x 2
15V
5A x 2
1.5A
C-core
$350
P52
400
1
442
320
500
200
+596
+432
350
140
60
100
6.3V x 2
15V
5A x 2
1.5A
C-core
$350
P53
400
1
310
310
400
400
+418
+418
280
280
40
100
6.3V
15V
4A
1.5A
Ccore
$350
P54
400
2
355, 343
600
+479, +463
420
50
100
7V x 2
16V
5.5A x 2
1.5A
C-core
$350
P55
400
1
310
600
+418
420
40
100
6.3V x 2
15V
4A x 2
1.5A
Ccore $350
P57
250
1
306-0-306
500
+413
350


7V x 2
5.3V
1.5V
4A x 2
3A
3A
EI
$125
P59
125
1
340-0-340
140
+459
100


6.7V-0-6.7V
9.3V-0-9.3V
3A
3A
EI
$100
P60
125
1
345-0-345
190
+465
140

6.3V
5A
EI potted
$100
P61
125
1
348
200
+470
140
44-0-44
100
3.3V
5A
EI
$80
P62
125
1






6.3V x 7
1.6A x 7
EI
$80
P63
35
2
230
115
+310
82


6.3
0.7A
EI potted milspec
$180
P65
600
1
301,295,
285, 270
700
+406, +398,
 +385, +364
500
80
500
6.3V x 2
10V, 9V, 7V
7.5A x 2
2A
Toroidal $180
P66
150
1
350
289
200
100
+472
+390
140
70
60
100
6.3V
15V
4A
1.5A
C-core
$180
P67
125
2
316, 250
200
+426, +337
140
60
100
6.3V
15V
3A
1.5A
Ccore
$180
P68
125
1
180, 170
300
+243, +229
210
50
100
12.6V
2A
Ccore
$180
P69
80
2
410, 380,
310
100
+553, +513,
+418
70
60
100
6.3V
15V
3A
1.5A
Ccore
$150
P70
150
1
365
300
+492
210
70
100
6.3V x 4
12.6V
1.5A x 4
1.5A
Ccore
$200
P71
150
1
310
300
418
210
40
110
6.3V
15V
3A
1.5A
Ccore
$200
P72
150
1
240, 218
400
+324, +294
280


6.3V
15V
5A
1.5A
Ccore

$200

P73
150
3
310
300
+418
210
53
100
6.3V
15V
4A
1.5A
Ccore
$200
P74
150
1
310
300
+418
210
40
100
6.3V
15V
4A
1.5A
Ccore
$200
P75
150
2
310
300
+418
210
60
100
6.3V
15V
5A
1.5
Ccore
$200
P76
100
4
340, 310
180
+459, +418
126
56
100
6.3V
15V
3A
1.5A
Ccore
$150
P77
100
2
313
200
+420
140
60
100
6.3V
15V
3.7A
1.5A
Ccore
$150
P78
150
1
380-0-380
200
+513
140
80
100
18.5V
12.6V
6.3V
3A
2A
3A
Ccore
$200
P79
150
1
310
310
160
160
+418
+418
113
113
59
100
6.3V
3A
Ccore
$200
P80
150
1
384-0-384
200
+518
140
80
100
12.6V
18.5V
6.3V
2A
2A
2A
Ccore
$200
P81
150
2
330
300
+445
210


6.3V
6A
Ccore
$200
P82
150
1
350, 310
280
+472, +418
200
70
100
6.3V x 2
15V
2.8A x 2
0.8A
Ccore
$200
P83
150
1
310
280
+418
200
60
100
6.3V
15V
3.6A
0.8A
Ccore
$200

P84
150
1
236, 226
350
+319, +305
245


6.3V CT
13V
5A
2A
Ccore
$200
P85
150
1
296-0-296
350
+400
245


5.3V
15V
2.3A
5A
Ccore
$200
P86
150
1
360
291
280
100
+486
+392
200
70


6.3V
6A
Ccore
$200
P87
150
1
360
280
+486
200
50
100
6.3V
6A
Ccore
$200
P88
150
1
310
300
+418
210
60
100
6.3V
15V
3A
0.8A
Ccore
$200
P89
100
1 350, 310
180
+472, +418
130
70
100
6.3V x 2
15V
3A x 2
0.8A
Ccore
$150
P90
100
1
310
200
+418
140
60
100
6.3V
15V
4A
0.8A
Ccore
$150
P91
50
2
300
70
+405
50
60
100
6.3V
12V
3A
0.8A
Ccore
$100
P92
400
3
387-0-387
500
+522
350
154-0154
100
6.3V
12.6V
5A
3A
EI
$200
P93
1,000
3
416-0-416
318, CT,
1,000
200
+561
+429
700
140


18.9V x 6
6.6V
15.6V
4A x 6
2A
2A
EI
$300
P94
170
3






6.3V
25A
EI potted+oil
$120
P95
180
1
387,288-0-288-387
280
+522, +388
200


6.3V
5V
2.5V x 2
3A
3A
1.5A x 2
EI
$120
P96
400
2
145
2,000
+195
1,400




EI

P97
50
2 315-0-315
100
+425
70


6.3V
1.5A
EI potted+oil
$80
P98
25
2
210
50
+283
35


6.3V
2A
EI
$60
P99
40
1






2.5V x 2
6A x 2
EI
$70
P100
60
2
31,22-0-22,31
1,800
+42, +30
1,250




EI
$50
P101
30
1
238, 230
75
+321, +310
50
33
70
6.3V
13V
2.5A
0.7A
Ccore
$80
P102
40
1
310
70
+418
50


6.3V
15V
3A
0.8A
Ccore
$80
P103
40
1
310
70
+418
50
56
50
6.3V
15V
3A
0.8A
Ccore
$80