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Radio Technique / 5840/EF732-RADIO TECHNIQUE
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All prices contained on this page are exclusive of VAT. This is currently charged at 20% and is payable by the UK only.
All prices contained on this page are exclusive of VAT. This is currently charged at 20% and is payable by the UK only.
RT was part of Philips Dario as was Mullard and RT was one of the best military manufacture of valve in France. Over the years these have been very popular in such microphones as they have very low noise and produce a very refined sound. Some are marked EF732 some are marked 5840, some green some white print.
Recording engineers really like this valve as they prefer the warmer and fuller response in the midband over The leaner sounding American made types. RT being part of the Philips group who also owned Mullard, one engineer told me that these have the Mullard Magic which I thought really sums up this valve sound perfectly.
EF732 5840 is currently used in Telefunkens current production models of the AK-47mkII and ELA M 260.5840 is electrically similar to the AC701K which was used in such microphones as the Neumann M49.
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