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Fine Special Tool |
Actually Helmut Beck is known as developer and manufacturer of loudspeakers - he also produces tube amplifiers. These circumstances probably led him to develop his latest product: the Tube Tester RM 1. This beautiful equipment, at the cost of roundabout 600 Euro, lives in an attractive wooden housing fronted with aluminium and it contains tube bases for the most common tubes out of the hi-fi business: ECC81/82/83, 6SL7-GT, EL34, 6550, KT88, 6L6-GC, 6V6-GT and EL84. The stabilized power supply subjects the "glass containers" with accurately defined operating parameters, a pleasing exact working pointer instrument indicating the flowing plate current, after a few minutes of warm-up time.
One can find out the tube's "state of health", on the other hand it enables to form couples or even quarters to match out of a contingent of several tubes. Comparable devices can only be bought used; therefore they are very rare, hard to find, and if so, they are extremely expensive. contact the
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STEREO 5/2004 |