The Wireless-Set-No19 Group
Royal Signals
www.royalsignals.org.uk

www.MegaCycles.co.uk   -   www.KiloCycles.co.uk
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The WS No 19 Established & Designed in England 1940
Royal Signals Established 28 June 1920

For the open exchange of information and opinions about collecting, restoring, maintaining and operating the Wireless Set No. 19 and all other radios, as well as line and other forms of comms equipment, used by the Allied forces before, during and after World War II. For organising operating events with the broadest possible participation. ALL collectors of vintage military communications equipment are most welcome.

 

The following information on FX and LA Ferrites

has been made available from Alan Gall

Click here for contact details

LA1662
RM6-s A16 (3c5) AL = 100
Accessories see LA1661

LA4547
RM10A13 (3h1) AL = 160
Adjuster LA1432 Red
Accessories see LA4543

LA4546
RM10 A13 (3h1) AL = 250
Adjuster LA1432 Red
Accessories see LA4543

LA4545
RM10 A13 (3h1) AL = 400
Adjuster LA1428 Natural
Accessories see LA4543

LA4544
RM10 A13 (3h1) AL = 630
Adjuster LA1428 Natural
Accessories see LA4543

LA4543
RM10 A13 (3h1) AL = 1000
Adjuster LA1433 Blue
Bobbins DT2534 (5 pin s/s)
DT2535 (8 pin s/s)
DT2651 (5 pin s/s)
DT2642 (8 pin s/s)
DT2644 (12 pin s/s)
DT2539 (8 pin d/s)
DT2643 (8 pin d/s)
DT2644 (12 pin d/s)
Clips DT2406 no spike
DT2506 with spike

LA4529
RM10 A10 (3d3) AL = 63
Adjuster LA1432 Red
Accessories see LA4543

LA4528
RM10 A10 (3d3) AL = 100
Adjuster LA1432 Red
Accessories see LA4543


LA4377
RM8 A14 (3h3) AL = 160
Adjuster LA1431 Red
Accessories see LA4375

LA4376
RM8 A14 (3h3) AL = 250
Adjuster LA1424 Natural
Accessories see LA4375

LA4375
RM8 A14 (3h3) AL = 400
Adjuster LA1424 Natural
Formers DT2470 (4 pin s/s)
DT2391 (5 pin s/s)
DT2523 (8 pin d/s)
DT2392 (8 pin s/s)
Clips DT2387 no spike
DT 2487 with spike

LA4348
RM8 A13 (3h1) AL = 100
Adjuster LA1431 Red
Accessories see LA4375

LA4347
RM8 A13 (3h1) AL = 160
Adjuster LA1431 Red
Accessories see LA4375

LA4346
RM8 A13 (3h1) AL = 250
Adjuster LA1424 Natural
Accessories see LA4375

LA4345
RM8 A13 (3h1) AL = 400
Adjuster LA1424 Natural
Accessories see LA4375

LA4344
RM8 A13 (3h1) AL = 630
Adjuster LA1430 Blue
Accessories see LA4375

LA4329
RM8 A10 (3d3) AL = 63
Adjuster LA1431
Accessories see LA4375


LA4328
RM8 A10 (3d3) AL = 100
Adjuster LA1431 Red
Accessories see LA4375

LA4278
RM7 A14 (3h3) AL = 100
Adjuster LA1427 Red
Accessories see LA4275

LA4277
RM7 A14 (3h3) AL = 160
Adjuster LA1399 Natural
Accessories see LA4275

LA4276
RM7 A14 (3h3) AL = 250
Adjuster LA1399 Natural
Accessories see LA4275

LM4275
RM7 A14 (3h3) AL = 400
Adjuster LA1400 Blue
Former DT2468 (4 pin s/s)
DT2391 (5 pin s/s)
DT2392 (8 pin s/s)
DT2523 (8 pin d/s)
Clips DT2387 no spike
DT2487 with spike

LA4248
RM7 A13 (3h1) AL = 100
Adjuster LA1427 Natural
Accessories see LA4275

LA4230
RM7 A10 (3d3) AL = 40
Adjuster LA1427 Red
Accessories see LA4275

LA4229
RM7 A10 (3d3) AL = 63
Adjuster LA1427 Red
Accessories see LA4275

LA4228
RM7 A10 (3d3) AL = 100
Adjuster LA1427 Red
Accessories see LA4275


LA4247
RM7 A13 (3h1) AL = 160
Adjuster LA1399 Natural
Accessories see LA4275

LA4246
RM7 A13 (3h1) AL = 250
Adjuster LA1399 Natural
Accessories see LA4275

LA4245
RM7 A13 (3h1) AL = 400
Adjuster LA1400 Blue
Accessories see LA4275

LA4178
RM6-r A14 (3h3) AL = 100
Adjuster LA1500 Red
Accessories see LA4175

LA4177
RM6-r A14 (3h3) AL = 160
Adjuster LA1429 Natural
Accessories see LA4175

LA4176
RM6-r A14 (3h3) AL = 250
Adjuster LA1429
Accessories see LA4175

LA4175
RM6-r A14 (3h3) AL = 400
Adjuster LA1501 Blue
Formers DT2467 (4 pin) s/s
DT2605 (4 pin) s/s
DT2517 (6 pin) s/s
DT2477 (6 pin) d/s
Clips DT2398 no spike
DT2498 with spike

LA4163
RM6-r B10 (4c6) AL = 34
Adjuster LA1555
Accessories see LA4175

LA4162
Rm6-r B10 (4c6) AL = 40
Adjuster LA1555
Accessories see LA4175


LA4161
RM6-r B10 (4c6) AL = 47
Adjuster LA1555
Accessories see LA4175

LA4148
RM6-r A13 (3h1) LA = 100
Adjuster LA1500 Red
Accessories see LA4175

LA4147
RM6-r A13 (3h1) AL = 160
Adjuster LA1429 Natural
Accessories see LA4175

LA4146
RM6-r A13 (3h1) AL = 250
Adjuster LA1429 Natural
Accessories see LA4175

LA4145
RM6-r A13 (3h1) AL = 400
Adjuster LA1501
Accessories see LA4175

LA4130
RM6-r A10 (3d3) AL = 40
Adjuster LA1500 Red
Accessories see LA4175

LA4129
RM6-r A10 (3d3) AL = 63
Adjuster LA1500 Red
Accessories see LA4175

LA4128
RM6-r A10 (3d3) AL = 100
Adjuster LA1500 Red
Accessories see LA4175

LA4078
RM5 A14 (3h3) AL = 100
Adjuster LA1494 Yellow
Accessories see LA4076

LA4077
RM5 A14 (3h3) AL = 160
Adjuster LA1495 Brown
Accessories see LA4076


LA4076
RM5 A14 (3h3) AL = 250
Adjuster LA1519 grey
Formers DT2612 (4 pin) s/s
DT2602 (6 pin) s/s
Clip DT2630

LA4048
RM5 A13 (3h1) AL = 100
Adjuster LA1494 Yellow
Accessories see LA4076

LA4047
RM5 A13 (3h1) AL = 160
Adjuster LA1495
Accessories see LA4076

LA4046
RM5 A13 (3h1) AL = 250
Adjuster LA1519
Accessories see LA4076

LA4030
RM5 A10 (3d3) AL = 40
Adjuster LA1492
Accessories see LA4076

LA4029
RM5 A10 (3d3) AL = 63
Adjuster LA1493
Accessories see LA4076

LA4028
RM5 A10 (3d3) AL = 100
Adjuster LA1491
Yellow colour
Accessories see LA4076

LA1676
RM14 A16 (3c8) AL = 1000
Accessories see LA1671

LA1675
RM14 A16 (3c8) AL = 630
Accessories see LA1671

LA1674
RM14 A16 (3c8) AL = 400
Accessories see LA1671


LA1672
RM14 A16 (3c8) AL = 250
Accessories see LA1671

LA1671
RM14 A16 (3c8) AL = 160
Formers DT2631 (12 pin)
DT2632 (0 pin)
Clips DT2633

LA1663
RM6-s A16 (3c8) AL 160
Accessories see LA1661

LA1661
RM6-s A16 (3c8) AL = 63
Formers DT2491 (4 pin)
DT2492 (6 pin)
Clips DT2398 or DT2498

LA1645
RM10 A16 (3c8) AL = 630
Accessories see LA1641

LA1644
RM10 A16 (3c8) AL = 400
Accessories see LA1641

LA1643
RM10 A16 (3c8) AL = 315
Accessories see LA1641

LA1642
RM10 A16 (3c8) AL = 250
Accessories see LA1641

LA1641
RM10 A16 (3c8)AL = 160
Formers DT2614 no pins
DT2534, DT2641 (5 pins)
DT2535, DT2642 (8 pins)
Clips DT2406 or DT2506

LA1632
RM8 A16 (3c8) AL = 250
Accessories see LA1630

LA1631
RM8 A16 (3c8) AL = 160
Accessories see LA1630

LA1630
RM8 A16 (3c8) AL = 100
Former DT2470 (4 pin)
DT2480 (8 pin)
Clips DT2396 or DT2456

LA1587
RM6-s Obsolete

LA1586
RM6-s Obsolete

LA1585
RM6-s Obsolete

LA1584
RM6-s Obsolete

LA1578
RM5 TFR A8 (3e4) AL = 3731 min
Accessories see LA1577

LA1577
RM5 TFR (3e1) AL = 2587 min
Accessories Former DT2612 (4 pin)
DT2602 (6 pin)
clips DT2601

LA1563
RM6-s B10 (4c6) AL = 51
Adjuster LA1555
Accessories see LA1530

LA1562
RM6-S B10 (4C6) AL = 36
Adjuster LA1555
Accessories see LA1530

LA1555
Adjuster RM6-s & RM6-r
used on LA1562, 1563, 4161, 4162, 4163.


LA1530
RM6-s A13 (3h1) AL = 630
Adjuster LA1501
Accessories Former DT2491 (4 pin s/s)
DT2492 (6 pin s/s)
Clips DT2398 (no spike)
DT2498 (with spike)

LA1526
Adjuster 14mm pot core
Used on LA1375, 1376, 1377.

LA1525
Adjuster 18mm pot core
Used on LA1372, 1373, 1374.

LA1524
RM8 TFR A8 (3e4) AL = 6000 min
Accessories see FX3435

LA1523
RM6 TFR A8 (3e4) AL = 5400 min
Accessories see FX3432

LA1522
RM6-s TFR A8 (3e4) AL = 4125 min
Accessories see FX3432

LA1519
Adjuster RM5
Used on LA4076, 4046.
Grey colour

LA1506
Adjuster pot core 14mm
Used on LA1417, 1157, 1158.

LA1505
Adjuster pot core 14mm
Used on LA1228, 1229, 1230.

LA1503
Adjuster 18mm & 21mm pot cores
Used on LA1415, 1164, 1165, 1166.

LA1502
Adjuster 18mm & 21mm pot cores
Used on LA1225, 1226, 1227, 1222, 1223, 1224.

LA1501
Adjuster RM6-s & RM6-r
Used on LA1530, 1487, 1436, 4145, 4175.
Blue colour

LA1500
Adjuster RM6-s & RM6-r
Used on LA1442, 4178, 4148,1497, 1498.
Red colour

LA1498
RM6-s A10 (3d3) AL = 63
Adjuster LA1500
Accessories see LA1530

LA1497
RM6-s A10 (3d3) AL = 100
Adjuster LA1500 Red colour
Accessories see LA1500

LA1495 Adjuster
RM5 used on LA4077, 4047.
Brown colour

LA1494 Adjuster
RM5 used on LA4078, 4048, 4028, 4029, 4030.
Yellow colour

LA1493 Adjuster
RM5 used on LA4029
Red colour

LA1492 Adjuster
RM5 used on LA4030
Natural colour

LA1487
RM6-s A13 (3h1) AL = 400
Adjuster LA1501
Accessories see LA1530

LA1485
RM6-s A10 (3d3) AL 40
Adjuster LA1500
Accessories LA1530


LA1442
RM6-s A13 (3h1) AL = 100
Adjuster LA1500
Accessories see LA1530

LA1441
RM6-s A13 (3h1) AL = 160
Adjuster LA1429
Accessories see LA1530

LA1437
RM6-s A13 (3h1) AL = 250
Adjuster LA1429
Accessories see LA1530

LA1436
RM6-s A13 (3h1) AL = 315
Adjuster LA1501
Accessories see LA1530

LA1433 Adjuster RM10
Used on LA4543
Blue colour

LA1432 Adjuster RM10
Pot core 25mm 30mm and 35mm
Used on LA1171, 1172, 1174, 1175, 1414, 1167, 1168, 1169, 4546 & 4547.

LA1431 Adjuster RM8
Used on LA4377, 4347, 4348, 4328, 4329.
Red colour

LA1430 Adjuster RM8
Used on LA4344
Blue colour

LA1429 Adjuster RM6-s and RM6-r
Used on LA1437, 1441, 4146, 4147, 4176, 4177.
Natural colour

LA1428 Adjuster RM10
For pot cores 25mm, 30mm, 35mm.
Used on LA1214, 1215, 1216, 1217, 1413,
1170, 1213, 1412, 1173, 4544, 4545.

LA1427 Adjuster RM7
Used on LA4278, 4248, 4228, 4229, 4230.
Red colour

LA1424 Adjuster RM8
Used on LA4375, 4376, 4345, 4346.
Natural colour

LA1423
Pot core 10mm A13 (3h1) mu = 40 with adjuster
Accessories see LA1421

LA1422
Pot core 10mm B10 (4c6) mu = 63 with adjuster
Accessories see LA1421

LA1421
Pot core 10mm A13 (3h1) mu = 100 with adjuster
Adjuster LA1383
Accessories Former DT2169
Clips DT2342
Ring DT2341
Board DT2344

LA1420
Pot core 12mm A13 (3h1) mu = 40 with adjuster
Accessories see LA1418

LA1419
Pot core 12mm A13 (3h1) mu = 65 with adjuster
Accessories see LA1418

LA1418
Pot core 12mm A13 (3h1) mu = 100 with adjuster
Adjuster LA1383
Accessories Bobbin DT2170
Clips DT2347
Ring DT2346
Board DT2349

LA1417
Pot core 14mm A13 (3h1) mu = 63 with adjuster
Adjuster LA1506
Accessories see LA1228

LA1416
Pot core 18mm A13 (3h1) mu = 63 with adjuster
Adjuster LA1503
Accessories see LA1225


LA1415
Pot core 21mm A13 (3h1) mu = 63 with adjuster
Adjuster LA1503
Accessories see LA1222

LA1414
Pot core 25mm A13 (3h1) mu = 63 with adjuster
Adjuster LA1432
Accessories see LA1218

LA1413
Pot core 30mm A13 (3h1) mu = 63 with adjuster
Adjuster LA1428
Accessories see LA1214

LA1412
Pot core 35mm A13 (3h1) mu = 63 with adjuster
Adjuster LA1428
Accessories ?

LA1411
Pot core 45mm A13 (3h1) mu = 100 with adjuster
Adjuster LA1362
Accessories see LA1409

LA1410
Pot core 45mm A13 (3h1) mu = 160 with adjuster
Adjuster LA1362
Accessories see LA1409

LA1409
Pot core 45mm A13 (3h1) mu = 250 with adjuster
Adjuster LA1362
Accessories Former DT2206
Clips DT2502
Ring DT2501
Board DT2504

LA1400
Adjuster RM7 used on LA4275, 4245.
Blue colour

LA1399
Adjuster RM7 used on LA4267, 4277, 4246, 4247.
Natural colour

LA1384
Adjuster used with 10mm B10 pot cores

LA1383
Adjuster used with 10 & 12mm pot cores

LA1380
Pot core 10mm B10 (4c6) AL = 30
Adjuster LA1384
Accessories see LA1421

LA1379
Pot core 10mm B10 (4c6) AL = 32
Adjuster LA1384
Accessories see LA1421

LA1378
Pot core 10mm B10 (4c6) AL = 33.8
Adjuster LA1384
Accessories see LA1421

LA1377
Pot core 14mm B10 (4c6) AL = 37
Adjuster LA1526
Accessories see LA1228

LA1376
Pot core 14mm B10 (4c6) AL = 45.7
Adjuster LA1526
Accessories see LA1228

LA1375
Pot core 14mm B10 (4c6) AL = 55
Adjuster LA1526
Accessories see LA1228

LA1374
Pot core 18mm B10 (4c6) AL = 45.4
Adjuster LA1525
Accessories See LA1225

LA1373
Pot core 18mm B10 (4c6) AL = 59.4
Adjuster LA1525

LA1372
Pot core 18mm B10 (4c6) AL = 74.2
Adjuster LA1525

LA1246
H core H10 mu = 3820 Min

LA1230
Pot core 14mm A13 (3h1) mu = 100 with adjuster
Accessories see LA1228

LA1229
Pot core 14mm A13 (3h1) mu = 160 with adjuster
Adjuster LA1505
Accessories see LA1228

LA 1228
Pot core 14mm A13 (3h1) mu = 250 with adjuster
Adjuster LA1505
Accessories Former DT2202
DT2279
Clips DT2352
Ring DT2351
Board DT2354

LA1227
Pot core 18mm A13 (3h1) mu = 100 with adjuster
Adjuster LA1502
Accessories see LA1225

LA1226
Pot core 18mm A13 (3h1) mu = 100 with adjuster
Adjuster LA1502
Accessories see LA1225

LA1225
Pot core 18mm A13 (3h1) mu = 25 with adjuster
Adjuster LA1502
Accessories Bobbin DT2178 one section
DT2281 two sections
Clips DT2357
Ring DT2356
Board DT2359

LA1224
Pot core 21mm A13 (3h1) mu = 100 with adjuster
Adjuster LA1502
Accessories see LA1222

LA1223
Pot core 21mm A13 (3h1) mu = 140 with adjuster
Adjuster LA1502
Accessories see LA1222

LA1222
Pot core 21mm A13 (3h1) mu = 250 with adjuster
Adjuster LA1502
Accessories Former DT2204 one section
Former DT2282 two sections
Clips DT2362
Ring DT2361
Board DT2364

LA1221
Pot core 25mm A13 (3h1) mu = 100 with adjuster
Adjuster LA1428
Accessories see LA1218

LA1220
Pot core 25mm A13 (3h1) mu = 160 with adjuster
Adjuster LA1428
Accessories see LA1218

LA1219
Pot core 25mm A13 (3h1) mu = 250 with adjuster
Adjuster LA1428
Accessories see LA1218

LA1218
Pot core 25mm A13 (3h1) mu = 400 with adjuster
Adjuster LA1428
Accessories see former DT2179
DT2283
Clips DT2367
Ring DT2366
Board DT2369

LA1217
Pot core 30mm A13 (3h1) mu = 100 with adjuster
Adjuster LA1428
Accessories see LA1214

LA1216
Pot core 30mm A13 (3h1) mu =160 with adjuster
Adjuster LA1428
Accessories see LA1214

LA1215
Pot core 30mm A13 (3h1) mu = 250 with adjuster
Adjuster LA1428
Accessories see LA1214


LA1214
Pot core 30mm A13 (3h1) mu = 400 with adjuster
Adjuster LA1428
Accessories Former DT2205 one section
DT2284 two section
Clips DT2372
Ring DT2371
Board DT2374

LA1213
Pot core 35mm A13 (3h1) mu = 100 with adjuster
Adjuster LA1428
Accessories see LA1210

LA1212
Pot core 35mm A13 (3h1) mu = 160 with adjuster
Adjuster LA1362
Accessories see LA1210

LA1211
Pot core 35mm A13 (3h1) mu = 250 with adjuster
Adjuster LA1362
Accessories see LA1210

LA1210
Pot core 35mm A13 (3h1) mu = 400 with adjuster
Adjuster LA1362
Accessories Former DT2180 one section
DT2285 two section
Clips DT2377
Ring DT2376
Board DT2379

LA1175
Pot core 35mm A10 (3d3) mu = 25 with adjuster
no further information


LA1174
Pot core 35mm A10 (3d3) mu = 40 with adjuster
Adjuster LA1432
Accessories see LA1210

LA1173
Pot core 35mm A10 (3d3) mu = 63 with adjuster
Adjuster LA1428
Accessories see LA1210


LA1172
Pot core 30mm A10 (3d3) mu = 25
Adjuster LA1432
Accessories see LA1214

LA1171
Pot core 30mm A10 (3d3) mu = 40 with adjuster
Adjuster LA1432
Accessories see LA1214

LA1170
Pot core 30mm A10 (3d3) mu = 63 with adjuster
Adjuster LA1428
Accessories see LA1214

LA1169
Pot core 25mm A10 (3d3) mu = 25 with adjuster
Adjuster LA1432
Accessories see LA1218

LA1168
Pot core 25mm A10 (3d3) mu = 40 with adjuster
Adjuster LA1432
Accessories see LA1218

LA1167
Pot core 25mm A10 (3d3) mu = 63 with adjuster
Adjuster LA1432
Accessories see LA1218

LA1166
Pot core 21mm A10 (3d3) mu = 25 with adjuster
Adjuster LA1503
Accessories see LA1222
Equiv to mm723/74/51

LA1165
Pot core 21mm A10 (3d3) mu = 40 with adjuster
Adjuster LA1503
Accessories see LA1222
Equiv to mm723/118/51

LA1164
Pot core 21mm A10 (3d3)mu = 63 with adjuster
Adjuster LA1503
Accessories see LA1222
Equiv to mm727/186/51


LA1163

Pot core 18mm A10 (3d3)mu = 25 with adjuster
Adjuster see LA1503
Accessories see LA1225


LA1162
Pot core 18mm A10 (3d3) mu = 40 with adjuster
Adjuster LA1503
Accessories see LA1225

LA1161
Pot core 18mm A10 (3d3) mu = 63 with adjuster
Adjuster LA1503
Accessories see LA1225

LA1158
Pot core 14mm A10 (3d3)mu = 40 with adjuster
Adjuster LA1506
Accessories see LA1228

LA1157
Pot core 14mm A10 (3d3) mu = 40 with adjuster
Adjuster LA1506
Accessories see LA1228

References:
1. Mullard Short Form Guide 1984/85
2. Mullard Quick Reference Guide 1977/78
3. Mullard Ferroxcube for Industry 1958
4. Marconi specification WIS885

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