prices prices
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excl vat incl vat
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beschrijving model primary & secondary description afmetingen excl incl
standard power toroids for all uses , low voltage to high voltage , excellent regulation low radiation
choke for hf regulation 100ĩH/5A low rdc tdk sft12-50 sk12m5 2.74 3.31
toroid 30va 6,9,12,15,18,24,30 volts dia 70/35mm 14.71 17.79
toroid 50va till 110 volts dia 81/32 mm 16.9 20.44
toroid 80va till 240 volts dia 86/37mm 19.28 23.32
toroid 120va till 110 volts dia 104/45 mm 22.1 26.74
toroid 160va till 110 volts dia 110/52 mm 29.06 35.16
toroid 225va till 110 volts dia 121/53 mm 34.82 42.13
toroid 300va till 110 volts dia 127/59 mm 31.6 38.23
toroid 500va till 110 volts dia 128/74mm 61.97 74.98
toroid 625va till 110 volts dia 148/75mm 65.76 79.56
custom made toroids for tube amp application
dual primarys for use everywhere in the world
model Uno secondary windings : 69.02 83.51
400 watt toroid 315V  700mA & 65V 700mA
2x115VAC 50/60Hz 2x 25.2V  2A & 6.3V 3A
60V 100mA
The idea is to put 4 tubes with 6.3V heaters in series = 25.2V
Used in our Boully kits KT88  KT66  EL34
model Duo secondary windings : 69.02 83.51
400 watt toroid 850V 250mA & 340V 200mA 
2x115VAC 50/60Hz 6.3V 4A & 10V9A
160V 100mA & 12V 400mA
used in PP 845 amp
model Tertio secondary windings : 4KV isolation 69.02 83.51
400 watt toroid 2x 500V 300mA & 200V 100mA
2x115VAC 50/60Hz 10V 5A & 6.3V 3A
12V 400mA & 20V 500mA
used in SE 845 tube amp
model Quattro secondary windings : 69.02 83.51
400 watt toroid 2x 425V 350mA & 80V 100mA
2x115VAC 50/60Hz 2x 6.3V & 6V 2A
2x 5V 3A & 20V 500mA
For 300B tube recitfied SE/PP amps
model Cinquo secondary windings : 62.12 75.16
200 watt toroid 2x 220V & 95V 200mA
1x 230VAC 50/60Hz 2x 6.3V 3A & 5V 3A
20V 1A
used in Piccolo amp range
model Cinquo secondary windings : 41.41 50.1
80VA primary : 140V & 100V & 75V 120ma
1x 230VAC 50/60Hz 2x 6.3V 2.5A & 20V 0.5A
used in pre amps
H350 toroid All Tube amps SE&PP secondary windings : last 3 pieces 42.9 51.9
primary : fits almost all 200v & 160v & 90v 550mA
2x115VAC 50/60Hz tubes 80v 100mA ( bias )
5V 3.5A & 3V 8A & 6.3v 8A
H349 toroid std multipurpose secondary windings : 65.71 79.5
primary : 300B , 2A3 275 & 200 & 100v 500mA
2x115VAC 50/60Hz KT88 , EL34 5V 3.5A & 2 x 6.3v 6A
C3m , ect 60v 100mA (bias )
H348 toroid KT88/EL34/6L6 secondary windings : 65.71 79.5
primary : push pull amps 315v & 55v 700mA
2x115VAC 50/60Hz 2x 6.3v 8A & 6.3v 4A
70v 100ma ( bias )
H272 toroid 845 & 300B driver secondary windings : 65.71 79.5
primary : or 2A3 driver 825v/250mA & 230V/250mA
2x115VAC 50/60Hz and C3m tube 150V/80mA & 90V/250mA
20V/0.5A & 6.3V/3A & 6V/4A
14V/8A & 2.75V/6A
H274 toroid secondary : 490V/0.45A & 350V/0.2A 42.9 51.9
primary : 2 x 3V/7A & 2x3V/3.5A
2x115VAC 50/60Hz 100V/70mA & 50V/70mA
2 x 25V/0.45A
2x 10V/0.45A
H500 toroid secondary : 2 x 500v 0.3A ( not to connect in series )   last 8 pcs 65.09 78.75
primary : 200v 0.1A
2x115VAC 50/60Hz 20v 0.5A  12v 0.5A
2 x 6.3v 3A   10v 7A
2.7v 7A
toroid tube amp primary 2 x 115 VAC 14V/12A , 2 x 2.6V/7A last 3 pcs 29.91 36.19
EI antwerp made super high quality cores , all are potted and resonance free , excellent price /performance ratio especially on chokes
EI potted 7H rdc 104 ohm 160mA choke potted 32.5 39
EI potted 10H rdc 100ohm 100mA choke potted 32.5 39
EI potted 20H rdc 322 ohm 80mA choke potted 32.5 39
EI potted 30H rdc 850 ohm 20mA choke potted 18 22.5
EI potted 120H/80mA parafeed choke 1Mhz bandwith 140 175
EI potted 300H/80mA parafeed choke 1Mhz bandwith 181 225
Lundahl high quality double C cores , the best outputtransformers and audio transformers in my opinion
tremenduos bass autority , excellent bandwith , very low losses , excellent winding technique
black housing for lundahl LL1620/23/27 & type LL1663/64 type 116/106/90 37.5 45
pcb for 1620 pattern board 12.5 17
tube output transformers for tube amplifiers
AMOURPHOUS CORE
double C core LL1685 AM all versions 174.16 210.73
double C core LL1638 choke AM core 186.96 226.22
double C core LL1673 choke AM core 186.96 226.22
double C core LL1689 AM all versions 195.81 236.93
double C core LL1667/8 AM versions all versions 180.07 217.88
double C core LL1660 AM versions SE/PP versions 185.97 225.02
double C core LL1660S AM versions SE/PP versions 200.73 242.88
double C core LL1692A AM SE all versions 200.73 242.88
double C core LL 1692A AM PP 200.73 242.88
double C core LL 1671 AM all versions 185.97 225.02
double C core LL 1677AM all versions 190.89 230.97
double C core LL1663/4 AM versions SE/PP versions 216.48 261.94
double C core LL1682 AM versions SE/PP versions 216.48 261.94
double C core LL162-x AM types Single end versions SE different primary currents available 277.48 335.75
double C core LL162-x AM types Push Pull version 1620/23/27 277.48 335.75
double C core LL1679PP AM tube output transformer made for kt88 277.48 335.75
double C core LL1679  AM tube output transformer 120ma single end version 277.48 335.75
double C core LL1620AM/CFB tube output transformer all versions 276.5 334.56
double C core LL9202 AM all versions 276.5 334.56
STD core
double C core LL9202AM/PP Amourphous core PP or SE 22K impedance 276.5 334.56
double C core LL9202PP Push Pull version for 211/845 suitable 157.44 190.5
double C core LL9202/SE Single end versions 157.44 190.5
double C core LL1620CFB/PP Push Pull version 160.39 194.07
double C core LL1620CFP/SE mA Single end versions SE different primary currents available 160.39 194.07
double C core LL1620PP Push Pull version 157.44 190.5
double C core LL1620 3.3K / 6K/ 11.5K to 4/8/16 ohms 40mA version Single ended 157.44 190.5
double C core LL1620 for use : 211 , 845 , 572 60ma version Single ended 157.44 190.5
double C core LL1620 also : 811 , 300B , KT88 90ma version Single ended 157.44 190.5
double C core LL1620 also : EL84 , KT66 , PX4 120mA version Single ended 157.44 190.5
double C core LL1620 PSE version 160mA version Single ended 157.44 190.5
double C core LL1623PP Push Pull version 157.44 190.5
double C core LL1623 1.6K / 3K / 5.6K to 4/8/16 ohms 60ma version Single ended 157.44 190.5
double C core LL1623 for use : 300B,PSE300B 90ma version Single ended 157.44 190.5
double C core LL1623 also 2A3,Pse KT66/88 120mA version Single ended 157.44 190.5
double C core LL1623 also EL34,Pse EL84 160mA version Single ended 157.44 190.5
double C core LL1623 also 45 ,50,6C45pi ect 240mA version Single ended 157.44 190.5
double C core LL1627PP Push Pull version 157.44 190.5
double C core LL1627 0.6K/1.2K/2.3K to 4/8/16 ohm 60ma version Single ended 157.44 190.5
double C core LL1627 for use : 6C33C , 6AS7 90ma version Single ended 157.44 190.5
double C core LL1627 also Pse EL34,Pse 300B 120mA version Single ended 157.44 190.5
double C core LL1627 also 6080 ect 160mA version Single ended 157.44 190.5
double C core LL1627 PSE 300B versions 240mA version Single ended 157.44 190.5
double C core LL1693 supersized LL1627 Push Pull version 236.16 285.75
double C core LL1693 supersized LL1627 60ma version Single ended 236.16 285.75
double C core LL1693 supersized LL1627 90ma version Single ended 236.16 285.75
double C core LL1693 supersized LL1627 120mA version Single ended 236.16 285.75
double C core LL1693 supersized LL1627 160mA version Single ended 236.16 285.75
double C core LL1693 supersized LL1627 240mA version Single ended 236.16 285.75
double C core LL2418 400 watt audio isolation output transformer 0 0
Ultra lineair special for tetrodes
double C core LL1679PP tube output transformer made for kt88 158.42 191.68
double C core LL1679 tube output transformer 120ma single end version 158.42 191.68
Cathode Feedback transformers Lundahl
double C core LL1620CFB versions tube output transformer all versions 173.18 209.54
5K to 8 ohm (4+8)+(4+8) to 1 ratio
double C core LL1663PP Push pull outputtransformer 97.41 117.86
double C core LL1663 for KT88/6550/KT66 30mA 5Kohm 97.41 117.86
double C core LL1663 also EL84,6C45pi ect 60mA 5Kohm 97.41 117.86
double C core LL1663 also 300B/2A3/572 80mA 5Kohm 97.41 117.86
double C core LL1663 pse application 120mA 5Kohm 97.41 117.86
3K to 8 ohm (3.2+6.4)+(3.2+6.4) to 1 ratio
double C core LL1664PP Push pull outputtransformer 97.41 117.86
double C core LL1664 for EL34/Pse EL34 30mA 3Kohm 97.41 117.86
double C core LL1664 also Pse 6L6/6V6 60mA 3Kohm 97.41 117.86
double C core LL1664 also Pse 2A3/6B4G 80mA 3Kohm 97.41 117.86
double C core LL1664 also 6C45pi/6H30 120mA 3Kohm 97.41 117.86
5.5K to 6 ohm (5+11)+(5+11) to 1+1 ratio
double C core LL 1682PP PP version  5.5K to 6 ohm 40watts 97.41 117.86
double C core LL 1682 SE 50mA  5.5K to 6 ohm 8watts 97.41 117.86
double C core LL 1682 SE 100mA  5.5K to 6 ohm 8watts 97.41 117.86
Special high impedance big core 845 & 211  output transformer
double C core LL1688 845 & 211 SE or PP 241.2 291.85
double C core LL1691 845 & 211 SE or PP 241.2 291.85
double C core LL1691B 845 18K to 8 ohm custom made SE or PP 241.2 291.85
interstage tube high end quality transformers
double C core LL1660PP high impedance Push pull version 89.54 108.34
double C core LL1660 high impedance 10mA version 89.54 108.34
double C core LL1660 high impedance 18mA version 89.54 108.34
double C core LL1660 high impedance 30mA version 89.54 108.34
double C core LL1660 high impedance 40ma version 89.54 108.34
double C core LL1689 step down all versions 9+9 : 1+1+1+1 84.62 102.39
double C core LL1689AM step down all versions 9+9 : 1+1+1+1 195.81 236.93
extra shields between windings
double C core LL1660  S version high impedance 10mA version 89.54 108.34
double C core LL1660  S version high impedance 18mA version 89.54 108.34
double C core LL1660  S version high impedance 30mA version 89.54 108.34
double C core LL1660  S version high impedance 40ma version 89.54 108.34
high current interstage line output TR 1-1-1-1:2-2
double C core LL1692A med impedance PP version 73.8 89.29
double C core LL1692A med impedance 18mA 73.8 89.29
double C core LL1692A med impedance 30mA 73.8 89.29
double C core LL1692A med impedance 50mA 73.8 89.29
double C core LL1671PP low impedance 72.81 88.1
double C core LL1671/30mA low impedance 72.81 88.1
made for 300B as interstage driver 1+1+1+1:4+4
double C core LL1677/80mA low impedance 300B version 79.7 96.43
double C core LL1677/60mA low impedance 2A3 version 79.7 96.43
non inverting drive transformer 1+1 : 1+1
double C core LL1621 line output  10Hz-100Khz 0.5dB Push Pull version 68.88 83.34
double C core LL1621 line output  10Hz-100Khz 0.5dB 6mA 130H version 68.88 83.34
double C core LL1621 line output  10Hz-100Khz 0.5dB 20mA 30H version 68.88 83.34
headphone or output low imp drive transformer 7.2+7.2 : 1+1
double C core LL1630 interstage tube low impedance Push Pull version 92.29 111.67
double C core LL1630 interstage tube low impedance 6mA 130H version 92.29 111.67
double C core LL1630 interstage tube low impedance 20mA 30H version 92.29 111.67
interstage transformer 1+1 with taps
double C core LL2731 low imp interstage Push Pull version 91.51 110.72
double C core LL2731 low imp interstage 6mA 130H version 91.51 110.72
double C core LL2731 low imp interstage 20mA 30H version 91.51 110.72
double C core LL1635 interstage tube high impedance Push Pull version 72.81 88.1
double C core LL1635 interstage tube high impedance 6mA 130H version 72.81 88.1
double C core LL1635 interstage tube high impedance 20mA 30H version 72.81 88.1
power supply Lundahl approx 250VA types available
double C core LL1648 power supply center tapped version 127.05 153.73
primary 2 x115 vac sec CT350v/0.63A and 2x 5.9vac/3.1A and 2 x 6.3vac/3.1A
double C core LL1649 power supply center tapped version 127.05 153.73
primary 2 x115 vac sec CT230v/1A and 4x 6.6vac/3.1A
double C core LL1650 power supply center tapped version 127.05 153.73
primary 2 x115 vac sec CT350v/0.63A and 4x 6.3vac/3.1A
double C core LL1651 power supply center tapped version 127.05 153.73
primary 2 x115 vac sec CT500v/0.43A and 4x 6.3vac/3.1A
double C core LL1669A power supply 127185.85 153894.87
primary 2 x115 vac sec CT340v/0.55A and 4x 6.3vac/3.1A and 110vac/40mA
double C core LL 1683 sec CT 250v/80mA 48v/0.1A 2x 6.6v/3A & 5.2v/3A 127.05 153.73
double C core LL1923 = LL1651 + shields power supply center tapped version 161.7 195.65
primary 2 x115 vac sec CT500v/0.43A and 4x 6.3vac/3.1A
Chokes also suitable as plate chokes very low Rdc
double C core LL1638 choke low rdc 36 ohm 5H/420mA 70.02 84.72
double C core LL1638 choke low rdc 36 ohm 10H/150mA 70.02 84.72
double C core LL1638 choke low rdc 36 ohm 20H/75mA 70.02 84.72
double C core LL1673 choke low rdc 60 ohm 5H/500mA 70.02 84.72
double C core LL1673 choke low rdc 60 ohm 10H/200mA 70.02 84.72
double C core LL1673 choke low rdc 60 ohm 20H/100mA 70.02 84.72
double C core LL1685/100mA approx 17H small choke 64.32 77.82
double C core LL1667 choke 540H 5mA version 70.02 84.72
double C core LL1667 choke 500H 7.5mA version 70.02 84.72
double C core LL1667 choke 400H 10mA version 70.02 84.72
double C core LL1667 choke 270H 15mA version 70.02 84.72
double C core LL1668 choke 200H 25mA version 67.02 81.09
double C core LL1668 choke 100H 50ma version 67.02 81.09
double C core LL1668 choke 70H 60ma version 67.02 81.09
double C core LL1670 540H grid choke 1.2ma 42.15 51
double C core LL1654 line output 5K:600ohm 40mA version 58H inductance 101.43 122.73
double C core LL1655 112.04 135.56
Moving coil suitable Lundahl transformers
to avoid hum allways ground input and output to mu metal can
1+1:8+8 LL1931 amourphous core MC input 150.06 181.57
1+1+1+1:16+16 LL1678 amourphous core MC input 50.92 61.61
1+1 : 4+4 LL1674 amourphous core high level capable 85.93 103.97
1+1:13+13 LL1681 mu-metal core paper insulation 72.2 87.36
1+1+1+1:10+10 LL9206 High turnīs ratio input. Amorphous core. For moving coil pickup. - 2dBU 54.42 65.84
1+1+1+1:10+10 LL1636 High turnīs ratio input. Amorphous core - 2dBU 59.02 71.41
1+1:14 LL1577 high-permeability mu core +10dBU 55.87 67.6
1+1:10 LL1578 high-permeability mu core +10dBU 50.52 61.12
1+1:10 LL1578XL high-permeability mu core XL large core 96.76 117.07
1+1+1+1:5.6+5.6 LL7905 high-permeability mu core +28dBU' 95.03 114.98
1+1+1+1: 9+9 LL 1680 5mA version also available UTC LS27 replica 90.03 108.93
For ribbons microphones
1+1:55+55 LL1927A 58.02 70.2
1+1+1+1:37 LL2913 identical to LL2911 49.01 59.3
input trannies suitable 4 tube application
1+1 : 4+4 high level LL1674 amourphous core high level capable 85.93 103.97
1+1 : 2+2 high level LL 1676 amourphous core high mu core 85.93 103.97
1+1+1+1: 9+9 LL 1680 5mA version also available UTC LS27 replica 90.03 108.93
LL 1922 high level step up UTC-LS10 68.65 83.06
LL1684 AM core high level low imp 82.43 99.74
1+1+1+1:1+1+1+1 LL7901 For very high level applications +34dBU 95.03 114.98
1+1+1+1:1+1+1+1 LL7902 For demanding applications +28dBU 93.73 113.41
1+1+1+1:2+2+2+2 LL7903 High level mic/line input. +28dBU 95.03 114.98
1:1+1 LL7904 High level splitting 1:1 direct + 2 isolated +22dBU 100.04 121.04
1+1+1+1:5.6+5.6 LL7905 high-permeability mu core +28dBU' 95.03 114.98
1+1:1+1 LL1531 Line input. Small size +20dBU 41.76 50.52
1+1:2 LL1532 Mic input. Ground isolation. +10dBU 41.01 49.62
1+1:1+1 LL1540 Line input. +30dBU 46.79 56.61
1+1+1+1:2+2 LL1544A Amorphous core +20dBU 50.02 60.52
1+1+1+1:2+2 LL1545A Wide bandwidth line input +24dBU 50.5 61.1
microphone  input transformers
1+1:2,5+2,5 LL1528 200 Ohm : 5 kOhm +16dBU 44.71 54.09
1+1:3,5+3,5 LL1530 DI 10 k Ohm: 200 Ohm. +16dBU 45.15 54.63
1+1:5 LL1538 200 Ohm: 5 kOhm* +16dBU 50.5 61.1
1+1:5 LL1538XL High level 200 Ohm : 5kOhm* +19dBU 59.04 71.43
1+1+1+1:4+4 LL1550 200 Ohm : 1 kOhm --200 Ohm:10 kOhm. Amorphous core +12dBU 46.15 55.84
1+1:1,75+1,75 LL1571 200 Ohm : 2,5 Ohm +16dBU 50.5 61.1
1+1:7 LL1576 200 Ohm : 10 kOhm* +16dBU 50.5 61.1
1+1:14 LL1577 50 Ohm : 10 kOhm* +10dBU 55.87 67.6
1+1:10 LL1578 50 Ohm : 5 kOhm* +10dBU 50.5 61.1
1+1:10 LL1578XL High level 50 Ohm : 5 kOhm* +13dBU 59.04 71.43
1+1:4 LL1587 small size +2 dBU 41.1 49.73
1+1+1+1:10+10 LL1636 High turnīs ratio input. Amorphous core - 2dBU 59.04 71.43
1+1+1+1:2+2+2+2 LL7903 High level mic/line input. +28dBU 95 114.95
Audio line output transformers
1+1,ct:1+1 LL1517 With Faraday shields. General purpose. +28dBU 46.35 56.08
1+1:1+1 LL1524 Balanced drive. Extra wide freq. range +28dBU 41.32 49.99
2:1+1 LL1539 Balanced drive +31dBU 41.32 49.99
1+1+1+1:1+1 LL1555 Balanced drive +27dBU 37.82 45.76
2+2:1+1+1+1 LL1560 Balanced drive. 4 output active split. +26dBU 53.79 65.08
1+1:1+1 LL1582 With Faraday shields. General purpose. Dimensions optimized for Euroboard +30dBU 48.86 59.12
1+1:1+1 LL1585 With Faraday shields. General purpose. Dimensions optimized for Euroboard +28dBU 50.28 60.83
1+1:1+1 LL2811 Balanced drive. Dimensions optimized for Euroboard +30dBU 40.67 49.21
2+2:1+1 LL5402 Unbalanced drive +22dBU 40.34 48.81
1+1:1+1 LL7401 Balanced drive. Low profile. Extra wide freq. range. +24dBU 41.32 49.99
600 ohms general purpose
1+1:1+1 LL1527 Split 1: 1 direct + 1 isolated. Ground isolation +16dBU 44.16 53.43
1+1:1+1 LL1527A Split 1: 1 direct + 1 isolated. Ground isolation +16dBU 44.16 53.43
1+1:1+1 LL1527XL Split 1: 1 direct + 1 isolated. Ground isolation +19dBU 52.26 63.23
1+1:2 LL1532 Mic input. Ground isolation. +10dBU 41.1 49.73
1+1:1+1 LL1570 Split 1: 1 direct + 1 isolated. Ground isolation +16dBU 48.64 58.85
1+1:1+1 LL1570XL Split 1: 1 direct + 1 isolated. Ground isolation +19dBU 56.85 68.78
1:1+1 LL1581XL Splitting 1:1 direct + 2 isolated +13dBU 63.19 76.45
1:1+1 LL1583 Splitting 1:1 direct + 2 isolated. Small size. + 8dBU 49.19 59.51
problem solvers & groundbreakers usually 1+1 or balanced
LL6810 PHMPHM +15dBU Isolation transformer unit rca-rca plug w. 1.5meter cable audio groundbreaker 101.74 123.1
LL156X 3FX3MX +24dBU XLR inline input transformer unit. XLR female to XLR male 127.85 154.69
LL156X 3FXNP2C +24dBU XLR inline input transformer unit XLR female - 1/4"pole 139.38 168.64
LL156X 3FXPHM +24dBU XLR inline input transformer unit. XLR female to Phono male 138.75 167.88
LL156X PHF3MX +24dBU XLR inline input transformer unit Phono female - XLR male 127.85 154.69
LL1584 3FX3MX +16dBU XLR inline 600 Ohms: 600 Ohms isolation unit XLR female to XLR male Also available as 3FXPHM and 3FXNP2C 77.95 94.31
LL1584 3FXPHM 138.75 167.88
LL1584 3FXNP2C 139.38 168.64
LL1584 PHF3MX 127.85 154.69
for miscellaneous applications
Aes-EBU SPDIF LL1566 pulse transformer DAC 110ohm : 110 ohm 14 16.94
Aes-EBU SPDIF LL1572 pulse transformer DAC 110ohm : 110 ohm 17.27 20.89
Aes-EBU SPDIF LL1574 pulse transformer DAC 110ohm : 75 ohm 17.27 20.89
Aes-EBU SPDIF LL1589 25.91 31.35
LL1575 video transformer 1 : 1 comp video 34.65 41.92
LL6702 telephone hybrid 34.55 41.8
Jensen Transformers
this is another great audiophile company with their own special recipees for hi end
JT-347-AXT moving coil 232.68 281.54
JT-44K-DX moving coil 97.52 117.99