PU7A7786_Microphone_web

Microphone Transformers

PhotoTypeTurns RatioSize LxWxHMax PrimlevelApplications/Comments
LL15271+1 : 1+138x24x17+16 dBUThe "standard" problem solver. Ground isolation, MS decoding, splitting 1 direct + 1 isolated outputs. Mic input 200:200 or 200:800 Ω.
LL15281+1 : 2.5+2.538x24x17+10 dBU200 : 5 k Ω
LL15301+1 : 3.5+3.538x24x17+10 dBU200 : 10 k Ω. Also used in DI-boxes 10k : 200 Ω.
LL15381+1 : 538x24x17+10 dBU200 : 5 k Ω. Probably the best 1:5 microphone input transformer available.
LL1538XL1+1 : 538x24x20.5+13 dBU200 : 5 k Ω. High level version of LL1538
LL1550 1+1+1+1 : 4+430x23x14.5 +2 dBU200 : 3.2 k Ω if used 1:4. Many other connections possible.
LL15701+1 : 1+138x24x17+10 dBU200 : 200 Ω or 200 : 800 Ω. For low impedance input mic preamps such as Jensen JE-990
LL15711+1 :
1.75 + 1.75
38x24x17 +10 dBU200 : 2.5 k Ω.
LL15761+1 : 7 38x24x17+10 dBU200 : 10 k Ω. Same pinout as LL1538
LL15771+1 : 1438x24x17+10 dBU50 : 10 k Ω. Same pinout as LL1538. For low impedance source.
LL15781+1 : 1038x24x17 +10 dBU 50 : 5 k Ω. Same pinout as LL1538. For low impedance source.
LL1578XL1+1 : 10 38x24x20.5 +13 dBU 50 : 5 k Ω. Same pinout as LL1538. For low impedance source.
LL15871+1 : 4 26x17x12+2 dBU 200 : 3.2 k Ω. Small size.
LL16361+1+1+1 : 10+1030x23x14.5 -14 dBU Mic Input. DI-box. Moving coil input.
LL19261+1+1+1 : 4+437x23x12+7 dBU50 : 3.2 k if used 1 : 8. Many other connections possible.
LL1927A1+1 : 55+5530x23x14.5 Ribbon microphones (used 1:110). Amorphous core. For active output stage.
LL19351+1 : 5+5 38x23x16+7 dBU DI (Direct Input) used 10:1. Mic input 200 : 20k.
LL1936(2+1)+(2+1) :
4 + 4
48x29x20+14 dBU Can be connected for 75, 150, 300 and 600 Ω microphones into 1200 Ω.
LL19409 : 1+1 31x25x16 Tube microphones. Silicon-iron C-core, which results in a transformer with more "transformer sound character", compared to a classic mu metal lamination transformer. PCB mount style.
LL19511+1 : 14 37x22x17 +10 dBUCompatible with LL1577, but with reduced internal capacitance.
LL29121 : 37 27 mm x diam. 18.5 Ribbon microphones. Amorphous core. Flying leads. No housing.
LL29131+1+1+1: 37 30x22.5x14.5Ribbon microphones. Amorphous core. PCB version of LL2912. With mu metal housing.
LL29141+1+1+1: 37 38x24x17Ribbon microphones. Mu metal core version of LL2913.
LL29151 : 37 36 mm x diam. 22 Ribbon microphones.
Mu metal lamination core. Flying leads. No housing
LL29161+1 : 55+5538x23x26Mu metal lamination core version of LL1927A.
LL79031+1+1+1 : 2+2+2+2 66x32x21+16 dBU 200 : 13 k Ω (used 1:8) This is the ultimate microphone input transformer, designed for high quality tube equipment.
LL79061+1+1+1 : 5.6 + 5.666x32x21+16 dBU Improved version of LL7905.