EDISWAN PEN45 – SINGLE TUBE (1 PC)
GRADE: PLATINUM SERIES | VINTAGE ENGLAND MANUFACTURE (1938)
Manufactured in 1938
Ediswan Radio Valve Label
Pen45 Power Pentode
Metallized / Grey Spray Shield
Mazda / British Base
New in Original Box
AVO Type 160 Tested
Up for sale is a single vintage NOS Ediswan Pen45 audio output power pentode valve, complete in its original factory box. Manufactured in 1938 in England by Edison Swan Electric Co., this rare British vintage valve features classic grey coating and iconic construction. Highly collectible and sought-after for historic British radio restorations, vintage audio equipment, and custom single-ended tube amplification builds.
This valve has been fully tested on a precision AVO Type 160 tube tester. Anode Current (Ia) and Mutual Conductance (mA/V) measurements alongside percentage performance ratings relative to reference factory specs are detailed in the table below.
| Serial No. | Tube Section | Anode Current (Ia) | Mutual Conductance (mA/V) | ||||
|---|---|---|---|---|---|---|---|
| Ref Spec | Result | % Ia | Ref Spec | Result | % Gm | ||
| S/R.NO. 5404001 | Power Pentode | 49.0 mA | 47.6 mA | 97% | 8.8 mA/V | 8.0 mA/V | 91% |
Technical Note: Custom duties and taxes are the responsibility of the buyer in their country.
Reviews
There are no reviews yet