A used Telefunken EL156, the flagship German output pentode built only at the Ulm plant, with its measured test readings shown below. A genuine EL156 for your studio or PA amplifier at a used-tube price.
| Parameter | Result | Nominal (100%) |
|---|---|---|
| Ia (mA) | 51 | 64 |
| S (mA/V) | 11.1 | 11.7 |
No direct equivalents confirmed.
The EL156 is a unique high-power pentode on the 10-pin Y10A steel base, produced only by Telefunken - it has no drop-in substitute. Glass-envelope compatible types were later made by other makers but differ in construction.
The EL156 is the flagship high-power output pentode of the Telefunken range, produced almost exclusively at the Ulm plant and regarded as one of the finest audio output valves Telefunken made. It powered Telefunken's professional Ela studio and PA amplifiers and was so specialised that Siemens bought it unstamped from Telefunken to sell under its own name. It remains a sought-after output tube for restoring the high-power German amplifiers it was built for.
A genuine Telefunken EL156 without the NOS price tag - get the sound of the legend into your amp.
SKU: 600