A highly regarded lamp like the VF14, which has better characteristics than the EF14 and is an absolutely better replacement than the EF14 in the microphone U47.

These results are very close to the VF14 and EF14 values measured. EF13 is the best substitute for the VF14, provided that an optimal operating point is selected.The EF13 tube may have a better potential as a substitute for the VF14 than the EF14, provided that an optimum, linear operating point is chosen, as already stated earlier. Since the internal resistance (Ri) of the EF13 is similar to that of the VF14, an added plus would be its compatibility with the original U47 output transformer.

The layout of the pin out legs is a little more than EF14


Contact me before paying by email to explain about the product:

dolezalpickups(gmail)


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Listed2 years ago
ConditionMint (Used)
Mint items are in essentially new original condition but have been opened or played.Learn more
Brand
Model
  • EF13
Finish
  • black
Categories
Year
  • 1938
Made In
  • Germany

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Dolezal's Boutique

Kutina, Croatia
Joined Reverb:2020

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