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EF86, CV2901, Mullard valve, code B4A4, tested
EF86, CV2901, Mullard valve, code B4A4, tested
EF86, CV2901, Mullard valve, code B4A4, tested

EF86, CV2901, Mullard valve, code B4A4, tested

£18.00
Stock Status: Sold Out
A Mullard EF86 pentodes, solid plate, Blackburn code, AVO tested with very good results.
Sorry, this item is out of stock, please contact me for details of when the new stock arrives.
Information
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Mullard EF86

a used  Mullard EF86 valve, AVO tested with very good results, results shown in table below.

Brand: Mullard (Blackburn factory)
Valve: EF86
Type: pentode
Factory codes: 9r3 B4A4

Sold as: used/ex equipment

Additional info: solid plate, halo getter
 
Test results:

Tested @  Vf = 6.3V  Vg= -2.0V   Va=250V   Vs= 150V
Tested for heater continuity and electrode insulation 
Design Actual Valve 1
Ia (mA) 3.0 3.6
gm (mA/V) 2.3 2.75

Tests carried out on an AVO VCM Mk3, design figures taken from AVO valve data manual.


Cosmetic condition: very good, some slight wear to print

Valves as shown no original packaging

If you have any questions regarding this item please email.
Specifications
  • ref:
    v133
  • Brand:
    Mullard
  • Condition:
    Used
  • Product Code:
    EF86
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