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.
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 ✔
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.
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
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ref:v133
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Brand:Mullard
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Condition:Used
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Product Code:EF86
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