|
|
Most Transformers have an electrostatic screen
between primary and secondary windings.
The RS types are mostly boxed. Used types have often only been used briefly
for testing, but terminals may have solder
Ex equipment are items removed from use.
All are tested for leakage between primary and secondary windings and to
frame/screen at 1kV. |
Enquiries for other types not listed are welcome. |
Cat
No. |
Click Pics for Larger View |
Description |
Condition |
Price GBP |
Small transformers up to 5VA |
TM1011 |
 |
50V 5mA;
Primary 120V. Gardners GR37370 342/2 Screened and Impregnated.
Primary inductance 38H, secondary 8H. Useful as an audio choke/transformer? |
Ex equip |
3.40 |
TM1013 |
Similar to TM11239 |
6-0-6V
100mA. 1.2VA
Belclere ITT ES4147 |
New Old Stock |
4.00 |
TM1018 |
Similar to TM11239 |
9-0-9V
66mA. 1.2VA
Belclere ITT ES4148 |
New Old Stock |
4.00 |
TM1019 |
 |
12
+ 12V 0.12A per winding. 3VA total. Farnell 141-472.
35 x39 x 34mm. 0.13 kg.Primary 120/240. Not
boxed |
New Old Stock |
5.00 |
TM1129 |
 |
12-0-12V
50mA. 1.2VA RS Sub-Miniature Mains
type 196-280.
Screened 0-240V primary.
Chassis or PCB mount. 45 x25 x 25mm. |
Unused |
5.00 |
TM1029 |
 |
20-0-20V 30mA.
1.2VA RS Sub-Miniature Mains type 196-280.
Screened 0-240V primary.
Chassis or PCB mount. 45 x25 x 25mm. |
Unused
Used |
5.00
2.50 |
6 to 9VA |
TM1106 |
 |
4.5 + 4.5V 3VA
per winding. RS type 207-188.
60mm mounting holes. Base 72mm x 50mm.
Overall 72 x 40 x 40mm. 0.26 kg.
Primary dual 120V for 120 or 240V operation. |
New Old Stock |
5.20 |
TM1017 |
 |
6 + 6 V 3VA per
winding. RS type 207-194.
60mm mounting holes. Base 72mm x 50mm. Overall 72 x 40 x
40mm. 0.28 kg.
Primary dual 120V for 120 or 240V operation.
Also earlier version used at £3.50 |
New Old Stock |
5.20 |
TM1020 |
 |
6 + 6V 3VA per
winding. Reading 9100.
43 x 35 x 40mm. 0.17 kgPrimaries 0-115 and 0-115. Not boxed |
New Old Stock |
4.80 |
TM1108 |
 |
12 + 12V 3VA per
winding. RS type 207-201.
Base 72mm x 50mm. 60mm mounting holes. Overall 72
x 40 x 40mm. 0.26 kg.
Primary dual 120V for 120 or 240V operation. |
New Old Stock |
5.20 |
TM1110 |
 |
12 +12V 3VA per
winding. RS type 196-303
or similar
45 x 40 x 40mm. 0.19 kg.
Primary dual 120V for 120 or 240V operation. |
New Old Stock
Used |
5.20
3.00 |
TM1114 |
 |
12 +12V 3VA per
winding. PCB Mounting RS type 207-756
43 x 37 x 36mm. 0.19 kg.
Primary dual 120V for 120 or 240V operation. |
New Old Stock |
5.20 |
TM1145 |
 |
16.3V 0.3A
centre tapped. Radiospares Standard Filament Transformer
54 x 45 x 48mm. 0.32kg. Some rust on lower laminations.
To deal with heater-cathode shorts and low emission. 25pF between mains and output
windings.
Primary 0-205-225-245V |
New Old Stock |
3.80 |
TM1026 |
 |
20 + 20V 3VA per
winding. RS Clamp Construction. Screened primary 0-250. 60 x 32 x
35mm. See some more data HERE.
(1.7Mb pdf) |
Unused |
5.00 |
10
to 20VA |
TM1027 |
 |
6 + 6V 10VA per
winding. 20VA RS type 207-138.
10VA per winding. Primary dual 120V for 120 or 240V operation. |
New Old Stock |
4.50 |
TM1122
|
 |
9V 2A RS type 19-633-1
Primary 250V
60 x 42 x 50mm. Not boxed |
New Old Stock |
4.00 |
TM1156 |
. |
9V 20VA RS 207-510
Primary 240V
57 x 50 x 50mm, 72mm fixing centres. |
New Old Stock |
4.90 |
TM1014 |
 |
9+9V at 1.1A per
winding 20VA. RS type 207-582.
10VA per winding.
Primary dual 120V for 120 or 240V operation.
|
New Old Stock |
4.90 |
TM1015 |
  |
12 + 12V 20VA
Toroidal. Digital Equipment Ltd 2k-1006A-00,
Screened 120 and 240V operation.
72mm diam. 32mm thick plus connections.
Central
screw mounting. 0.48 kg. |
New Old Stock |
7.50 |
TM1024 |
 |
12 + 12V 0.8A per
winding 20VA total. Farnell 141-485.
Primaries 0-110 and 0-110-130.
57 x 69 x 52. FC 84mm. 0.71 kg.
|
New Old Stock |
5.10 |
TM1124 |
. |
12 + 12V 0.8A per winding 20VA total. RS 207-144
10VA per winding.
Primary dual 120V for 120 or 240V operation. |
New Old Stock |
4.90 |
TM1043 |
 |
Radiospares
13.3V CRT Boost Transformer. 0.6A, with a 20% boost winding.
High isolation to mains.
To deal with heater-cathode shorts and low emission. Low capacitance, 25pF between mains and output
windings. |
New Old Stock |
7.80 |
TM1025 |
 |
15 + 15V 6VA per
winding. RS
type 207-706. 57 x 44 x 48 mm. PCB
style. Or chassis mounting by 37 x 48 FC holes. Primaries 120V + 120V. Note the
brown is the varnish not rust!)
|
New Old Stock |
4.10 |
TM1023 |
 |
15 + 15V 6VA per
winding. Reading 9123.
Primaries 0-115 and 0-115. 55 x 45 x 40mm. 67m FC. Not boxed |
New Old Stock |
3.90 |
TM1138 |
 |
12 + 12V 6VA per
winding. Toroidal RS
type 207-790. |
New Old Stock |
4.30 |
TM1139 |
 |
15 + 15V 6VA per
winding. Toroidal RS
type 207-807.
1 only |
New Old Stock |
4.30 |
TM1028 |
 |
20 + 20V 10VA per
winding. RS
207-166. 120/240 primary.
92 x 58 x 58mm. 80mm Fixing Centres. |
Unused |
5.00 |
TM1030 |
. |
18V 20VA RS 207-532
Primary 240V
57 x 50 x 50mm, 72mm fixing centres. |
New Old Stock |
4.50 |
TM1031 |
 |
19 + 19 and
0-11. 12VA 3 windings. Jermyn J34-2009.
Primary 115 + 115V. 77 x 45 x 47mm. 64mm FC. |
Unused |
6.00 |
20
to 50VA |
TM1160 |
. |
30VA 12 + 12V 15VA per winding. Avel-Lindberg 40/27/66
82mm diameter 30mm high |
Unused |
6.00 |
TM93 |
 |
32VA.
20-12-0-12-20V 0.8A RS 20V Rectifier Transformer. 0.7A dc.
Primary 0-115-205-225-240V
66 x 60 x 57mm. 0.75kg. |
Used |
4.00 |
TM209 |
as TM212 |
50VA
4.5V + 4.5V 25VA per winding. RS type 207-239
Primary 120+120 for 120 or 240V operation |
New Old Stock |
9.50 |
TM212 |
 |
50VA
12 + 12V 25VA per winding. RS type 207-251
Primary 120+120 for 120 or 240V operation |
New Old Stock |
9.50 |
TM1132 |

Similar Picture |
50VA
12 + 12V 25VA per winding. Avel-Lindberg 40/27/7x
94mm diameter, 41mm high.
|
New Old Stock
|
11.50
|
TM214 |
 |
50VA
15 + 15V 25VA per winding. RS type 207-267
Primary 120+120 for 120 or 240V operation |
New Old Stock |
9.50 |
TM214a |
. |
50VA
15 + 15V 25VA per winding. RS type 207-793 or 207-267
Primary 120+120 for 120 or 240V operation |
Used |
4.00 |
TM1144 |
 |
50VA
15 + 15V 25VA per winding. Avel-Lindberg 40/27/7x
94mm diameter, 41mm high. With flying leads
One only |
New Old Stock
|
11.50
|
TM216 |
as TM212 |
50VA
0-20 + 0-20V 25VA per winding. RS type 207-273
Primary 120+120 for 120 or 240V operation |
New Old Stock |
9.50 |
TM219 |
 |
50VA 0-12-20V
+ 0-12-20V 25VA per winding.
Primary 120+120 for 120 or 240V operation
66 x 65 x 57mm |
New Old Stock |
9.50 |
Above
50VA |
TM116 |
 |
Toroidal 25 +25V
80VA total. Farnell 143-878 with mounting hardware. 87mm diameter 40mm deep.
1.01 kg.
Flying leads.
240v operation. |
New Old Stock |
10.50 |
TM117 |
 |
Toroidal 25V +25V 90VA total.
47-400Hz
Primary 120 and 120V for 120 or 240V operation. . Avel
Lindberg 40/27/7x
Secondary 25 and 25V at 45VA each.
Both primary and secondary windings may be operated in series or parallel.
Encapsulated. 105mm diameter, 43mm deep. Boxed
 |
New Old Stock |
12.50 |
TM119 |
 |
Toroidal 12V + 12V 90VA total.
47-400Hz
Primary 120 and 120V for 120 or 240V operation. . Avel
Lindberg 40/27/7x
Secondary 12 and 12V at 45VA each.
Both primary and secondary windings may be operated in series or parallel.
Encapsulated. 105mm diameter, 43mm deep. Boxed
 |
New Old Stock |
12.50 |
TM245 |
Similar to TM976 |
96VA
12 + 12V 4A per winding. RadioSpares type "Lovolt"
Isolating Transformer
Primary 0-200-225-245V
Shrouded with screw terminals 3.4kg. |
New Old Stock |
15.50 |
TM254 |

|
85VA
0-12-15-18V 4.6A RS type 196-16 "18V Rectifier
Transformer"
Primary 0-115-205-225-240V
Maximum dc output with full-wave rectifier, 2.5A.
100 x 70 x 85mm 1.95kg. Fixing centres 105-115mm. |
New Old Stock |
12.50 |
TM255 |

|
100VA
0-25-30V and 0-25-30V 1.7A per winding. RS type 196-139
"30V Rectifier Transformer"
Primary 0-115-205-225-240V
Maximum dc output with full-wave rectifier, 0.93A at 60V.
100 x 70 x 85mm 1.95kg. Fixing centres 105-115mm. |
New Old Stock |
12.50 |
TM276 |
 |
100VA
0-13.4--19.2--26-31.9V 3.2A RS type 196-353
Primary 0-220-240V |
New Old Stock |
12.50 |
TM279 |
 |
120VA
0-25-30 0-25-30V 2A per winding, RS Type 207-497
Primary 120/240V
110mm diameter, 50mm high. |
New Old Stock |
17.50 |
TM283 |
similar to
TM284 |
120VA
0-24 0-24V RS Type 208-147
Primary 120/240V
With mounting hardware |
New Old Stock |
17.50 |
TM284 |
 |
130VA
0-18 0-18V 3.3A per winding, RS Type 208-131
Primary 120/240V
With mounting hardware
|
New Old Stock |
17.50 |
TM287 |
 |
130VA
0-30 0-30V 65VA per winding, Avel-Lindberg type 40/27/8x
Primary 120/240V 47-400Hz |
New Old Stock |
17.50 |
TM61 |
. |
14kVA
3 Phase Transformer. Input 380/415 by links.
Outputs 415V 3ph 3.5kVA; 140V 3ph 8kVA; 240V 2kVA; 240V 0.5kVA; 92V 0.5kVA .
In wheeled cabinet with switch and 3 connectors, approx 450 x 500 x 600mm. Romarsh
3UR 16.0/12.
|
Unused |
45.00 |
HT
Transformers |
TM811 |
 |
Gardners R111/6.
Screened
Primary 10-0-200-220-240V 50/60 Hz
350-0-350V 60mA; 6.3V 1A; 6.3V 4A.
80 x 77 x 108mm 2.3kg |
Used tested |
37.00 |
TM813 |
 |
Gardners R111.
Screened
Primary 10-0-200-220-240V 50/60 Hz
350-0-350V 60mA; 0-4-5 2.5A; 0-4-6.3V 4A.
80 x 77 x 108mm 2.3kg |
Used tested |
37.00 |
TM824 |

 |
Marconi W24740
SH5 Services Ref ZA38099 Army Spare
Primary 10-0-200-220-240 45-65 Hz Screened
Outputs: 340-250-0-250-340V 210mA; 6.3V
5A; 6.3V 5A; 5V 5A
Very conservatively rated above at 230VA. Size and tests indicate that 300 to
400VA would be nearer the commercial rating.
130 x 110 x 165mm 6.5kg
|
Unused |
115.00 |
Isolating,
Auto and Variable Mains Transformers |
TM920 |
|
Isolating Transformer.
RS 100VA. Rated for 440V in, with 220 and 240V out.
Can also be used for 230V input, giving outputs of 115 and 125V. 50/60
Hz.
80 x 95 x 105mm.
|
Used tested |
9.00 |
TM976 |
 |
Auto
Transformer. 150VA 240V RS207-093.
Boxed
0-115-200-220-240V tappings.
65 x 100 x 90mm. 48 x 65mm fixing centres. |
Unused |
14.00 |
TM1374 |
|
Variable Transformer
1A
15% electrical taps at top and bottom of transformer permit +15% output
|
Unused |
|