Telefunken ELA M 260 Small Diaphragm Tube Microphone Stereo Set
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Possibly the most beautiful sounding microphones ever manufactured, today vintage ELA M 250 / 251 [both 'E' and 'non E'] microphones have become rare and highly sought after jewels, commanding tens of thousands of dollars on the vintage market. You will find that the TELEFUNKEN Elektroakustik recreations exemplify the best qualities of the best examples of these legendary beasts, and while more expensive than most modern microphones, they are true to the heritage of their 40+ year old brethren.
Arguably the most beautiful sounding microphone ever produced, the TELEFUNKEN ELA M 250 / 251 was originally sold in two variations: the "ELA M 250E / 251E" version utilized a 6072a tube, while the "ELA M 250 / 251" version contained a TELEFUNKEN AC-701 tube. The "no-suffix" microphones were built to satisfy the standardized requirements of the German and Austrian national broadcast systems. While both versions of these microphones have achieved legendary stature in the modern recording industry, the road to achieving this legendary status was far from instantaneous.
In 1947 Neumann first built the U-47 microphone. From 1947 to 1958 TELEFUNKEN used their established global distribution network for the products produced by Neumann, which were sold under the TELEFUNKEN name with a TELEFUNKEN logo badge.
In 1958 when Neumann notified TELEFUNKEN that they had decided to not renew their distribution contract, TELEFUNKEN reached out to AKG Acoustics about the possibility of AKG creating a "U-47 like" model for TELEFUNKEN to plug into their global distribution network.
This U-47-esque microphone was to be known as the ELA M 250. Like the U-47 this new microphone featured the pattern selection (cardioid and omni-directional) switch on the head of the microphone. Around 1958 Neumann also released their U-48 microphone which featured cardioid and "figure 8" pattern selection. The TELEFUNKEN ELA M 251 was an amalgam of the two as it featured 3 pattern (cardioid, figure 8 and omni-directional) selection capability.
The switch housing at the base of the capsule assembly is where the similarity between the Neumann U-47 / U-48 and the ELA M 250 /251 microphone series ends.
The TELEFUNKEN ELA M 250 / 251 features an edge terminated, dual backplate CK-12 capsule (as found in the AKG Acoustics C-12). The amplifier was the same circuit found in the C-12 that featured a GE 6072 tube and a Haufe 14:1 ratio output transformer. As previously mentioned, a system that featured a TELEFUNKEN AC-701 tube was also designed to meet the technical specifications of German and Austrian broadcast during the period when these microphones were originally constructed.
While the C-12 accomplished pattern selection with an outboard switching device that was connected to the power supply, the ELA M 250 / 251 eliminated that addition to the system and minimized both the quantity of wires that had to run to the microphone as well as the expense of the external pattern selection box.
The design engineers at AKG Acoustics also came up with another very handy feature, which was the capability to minimize the time necessary to accomplish "field repairs" of the microphone. Both the C-12 and U-47/48 microphones require a fair bit of knowledge, a steady hand, as well as a couple of screwdrivers to get to the internal workings of the mic.
All that was required to "field repair" the ELA M 251E was the removal of the ring on the bottom of the body and the metal body tube would slide right off (no tools necessary!!). Once the body tube was removed either the capsule or the amplifier could be replaced in under a minute saving precious time when under the gun in a broadcast or orchestral recording environment.
The amplifier in the ELA M 250 / 251 series is housed in a molded plastic enclosure. The capsule is held in place by two metal struts that run up the exterior of the amplifier housing. By implementing this system, either of these critical components could be replaced in seconds and the session could continue while either system element could be sent to the technical shop for "component level repair". This convenience was something the broadcasters of the time found to be a major plus as they had thousands of dollars of musicians sitting around for the live music broadcasts of the day. Any time saved cut down on the expense of the session, and added to the quality of the broadcast.
Unfortunately for TELEFUNKEN, these field replacement provisions also proved to be a sales impediment outside of the orchestral recording world as the plastic bits employed in these microphones added significant cost to the construction of the microphones.
The added cost made them markedly more expensive at the time than the Neumann and AKG Acoustics products, thus the non Government owned facilities of the time did not adopt these systems as readily as TELEFUNKEN would have liked. It is thought that fewer than 3700 total original ELA M systems were built from 1960 to 1965 when TELEFUNKEN discontinued sales of the microphone.
Today, prime examples of vintage ELA M 250 / 251 [both "E" and "non E"] microphones have become rare and highly sought after jewels, commanding tens of thousands of dollars on the vintage market. You will find that the TELEFUNKEN Elektroakustik recreations exemplify the best qualities of the best examples of these legendary beasts, and while more expensive than most modern microphones, they are true to the heritage of their 40+ year old brethren.
Order now for the microphone of your dreams.
ELA M 260 Small Diaphragm Tube Microphone Stereo Set Specifications:
- Type Condenser Pressure Gradient
- Capsule CK12 - 1" dual sided gold sputtered membrane
- Frequency Range 20Hz / 20kHz
- Polar Pattern Cardioid, Omni and Figure 8
- Sensitivity approx 1.2 mvolts per dyne / cm sq
- Impedance 200 ohms stock / 50 ohms switchable
- SPL 138 dB
- Non Linear Distortion Less than or equal to 0.5% at 100 dyne / cm sq
- Equivalent Noise 16 dB (a-weighted)
- Tube Type 6072a General Electric JAN twin triode
- Power Dedicated Power Supply
- Weight 20oz (567g), 34oz (960g) with swivel
- Size 8 1/2" (216mm) length x 2" (51mm) diameter
- Extras Locking Flight Case, Lunchbox Style Power Supply, Wooden Microphone Box