Low Noise Pentode
These tubes are of the Mesh ( Screen ) Plate variety.
The Valvo EF86 Vacuum tube is a miniature type,
Very low noise, low microphonic pentode used in the
early stages of high gain, high quality amplifiers and
microphones. This tube requires a miniature 9-contact
socket.
Below is a list of high end Microphones and
Amplifiers
That use Valvo EF86 Vacuum tubes:
MICROPHONES
Blue Bottle Microphones
Brauner VM1 Microphones
Lawson L47 Microphones
Lawson L47MP Microphones
Manley Baby Tube Microphones
Microtek ( Microtech )UM92.1 Microphones
Neumann U47 Microphones
Neumann U48 Microphones
Neumann U67 Microphones
Soundelux U99 Microphones
AMPLIFIERS
65 Amps Monterey Amplifiers
Bottlehead Tube Repro Amplifiers
Dr. Z Route 66 Amplifiers
Eastern Electric M520 Amplifiers
Luxman MQ-68C Amplifiers
Matchless DC-30 Amplifiers
Shindo Amplifiers
VOX AC10 Amplifiers
VOX AC15 Amplifiers
VOX AC30 Heritage Amplifiers
Electrical Data
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.2 A
Preferred Substitutes ........ 6BK8, 6CF8, 6F22,
6j32p, 6267, CV2901, EF86, EF806S, Z729.