Fat Bottom Coils are hand punched out of 4 piece phenolic sheets and assembled to match the original factory coil
form specs. The forms are then hand wound with vintage magnet wire to hover around 1300-1350 ohms DC resistance.
If your looking for future resale value, you can't go wrong with
Fat Bottom Coils.

To help clarify why I make these coils available to customers:
I generally use the below coils only on Black Label CR elements and only if the original coil is damaged beyond repair. This
does not mean that I will guarantee the tone or the output of the element after replacing it.
These are offered for original coil replacements only and not for boosting.
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Controlled Reluctance repair, service, parts, sales and evaluation.

  • CR/CM Sales
  • Hand over wound custom phenolic coil windings
  • CR repair and tuning (dead or weak)
  • Controlled magnetic repair
  • Chemical strip and corrosion removal
  • Center disk repair and replacement
  • Diaphragm swaps  
  • CR evaluation
  • CR preventative maintenance
  • Low-z to High-z boosting
  • Feedback control
  • CR/CM parts

If you are looking for a factory CR/CM style element please contact me at:
chuck@fatbottom-mics.com
Fat Bottom Harp Mics
CR  Sales, Repair, and Maintenance
CR /CM Services
Statement made by Dave Barrett of Harmonica Masterclass.

"One fateful day my favorite bullet mic took a high-speed fall onto an
unpadded floor and died an immediate death. That was a traumatic
moment... it had my favorite element inside... the choice element from over
150 mics I've owned through the years... an element other pro players
salivated over! I heard good things about Chuck Gurney's element repair
service through the years and sent it to him. The resurrection was
miraculous... the mic lives on today as one of best sounding mics on earth!"
Dave Barrett
Dave Barrett
Dave Barrett