20101 GAC-7 Tube Specially designed microphone cable for tube microphones 7 Conductors

Specially designed microphone cable for Tube and Stereo microphones (7 conductors!). Ultra-flexible design and best possible electrical values for an affordable price. Vintage construction. 2 conductors each 0.50mm for power supply and 5 compact conductors for 2 balanced audiolines. Hair-thin stranding, 0.05mm strands! This stranding is used also in our 10701 Neumann cable. Double Reussenshield for perfect RF protection!

The 20101 is a standard universal cable designed for tube microphones of many kind. Out of the 7 conductors, 2 are made with larger diameter (copper) meant to serve the tube with power, and the other 5 smaller conductors are meant to work as signal and/or control lines. Possibly not all conductors are needed. Any unneeded conductor should go to ground together with our Double Reussen shield.

LFOC higher grade copper at best standards for best performance.




1 = Jacket: PVC, Ø 6.2 mm, grey
2 = Viscose fiber coat: Counter wrapped to the shields
3 = Shield No. 1: Bare copper wires (0.10 mm) 100% coverage
4 = Shield No. 2: Bare copper wires (0.10 mm) 100% coverage
5 = Insulation A: PE, 1.50 mm Red/Blue
6 = Insulation B: PE, 1.10 mm, White/Yellow/Black/Gray/Green
7 = Conductor A: Stranded bare copper wires 252 x 0.05 mm (0.50 mm²) Red/Blue 252x44AWG = 20AWG
8 = Conductor B: Stranded bare copper wires 72 x 0.05 mm ( 0.14 mm²) White/Yellow/Black/Gray/Green 26AWG

Technical Datas:

Conductor resistance: cond. A: < 30 Ohm/km
  cond. B: < 110 ohm/km
Shielding resistance:   > 15 gohm/km
Capacitance: cond/cond: < 90 nF/km
  cond/shield: < 160 nF/km
Test voltage: cond/cond:  500 veff
  cond/shield:  2000 veff
Temperature range: flexi-installed: -5° to +50° C
  fix-installed: -30° to +70° C

Ordering Information:

Order No. Type Type Colour Spool Size Weight/
 Shipping Unit
20101 GAC-7 Tube 6.2 mm grau 200m 13.60 kg 2x200m

Retail Prices May 2021:

Order Nr. Tube Microfone Length/
Color **shipping unit CHF (Swiss Francs) Export EUR
per spool * per meter per spool * per meter
20101 GAC-7 Tube 200 m dunkelgrau  2x200m 832.90  5.20 736.50  4.60

Wiring instruction 7 Conductor shielded Tube Microphone Cable 20101 to 7 pin XLR Connectors
please ask for a quotation here: (link)  Enter your order/inquiry with a simple email to info@gotham.ch

  Please indicate your address and details, indicate product and quantity and requested delivery date.  
  We also provide an orderform (Doc) you can complete and email or fax to us.


Gotham Cables are available from our Swiss service lab soldered as per your desires.
Each cable is being made in our own service lab by our own staff at highest standards and to your specification.
Visit our soldering department here:  LINK 

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