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| Introduction (the Part number below, is the same as in the pricelist | |||||
Part 1 |
Tube Power Supply Chokes) | Part14..20 |
Tube Output | ||
Part 2 |
Filament Chokes / High Current Chokes | Part 21 |
Tube Mains transformers with DC cancellation | ||
Part 3 |
Plate (anode) Chokes | Part 22 |
Mains Cleaning transformers with DC cancellation | ||
Part 4 |
Grid Choke | Part 23 |
Various transformers, not mentioned here | ||
Part 5 |
Interstage | ||||
Part 6 |
Signal Input | ||||
Part 7 |
Signal Output | ||||
Part 9 |
Moving Coil | ||||
Part 10 |
Guitar Input | ||||
Part 11 |
Tech Info |
About Product Storage | |||
Part 12 |
For Digital Audio. Finest Quality. | Tech Info |
About Amorph Cores | ||
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Interconnect Solutions | Tech Info |
DATASHEET DOWNLOAD | ||
Interconnect solutions
All lundahl transformers have physically a symmetrical construction per definition. Interesting wise this has totally different advantages for each product. For the small signal transformers, a natural application is using them for symmetrical signals, and conversion of symmetrical to non-symmetrical (and vice versa).
Symmetrical (XLR) connections are the best and professional way to eliminate hum problems permanently. The ground loop is high impedance with XLR, and with transformers the ground loop is not even present. Furthermore, the cables are symmetrical so they do not radiate signal and do not receive unwanted signal. Mains hum can be radiated into a symmetrical (XLR) cable, and also cross talk is like zero.
So you find this where large lengths are used, such as on a music stage. Other applications are for Studios with hundreds of connections to one panel, where cross talk and hum can not be tolerated.
Also you find the XLS connections where HiFi users choose XLR connected equipment to permanently solve hum problems.
There are several ways to use an interconnect solution from Lundahl transformers
1) Build in a signal transformer in your equipment, either at the source or at the receiving end, or at both ends.
This is very easy to do and generally you will choose the 1:1 option. Please check here for some more information about this. How to choose Symmetrical to unsymmetrical transformers. However when constructing new equipment you can also consider a 1:2 1:3 or 1:4 step up. There is a lot of advantage in this, since distortion and noise of a good signal transformer is much lower than an active stage.
2) Use a Lundahl interconnect solution with transformer inside.
This solution can connect XLR equipment to RCA equipment, the only correct way, and that is with a transformer. The actual interconnect cable is an RCA cable, or the XLR cable depending on the connector you choose. Also with the RCA cable, inside it works like an XLR too. This is the only professional way to connect XLR to RCA.
There are several types:
