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Tubelab Discussion and support of Tubelab products, prototypes and experiments

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Old 30th September 2019, 10:41 PM   #11
kevinaston1 is offline kevinaston1  United Kingdom
diyAudio Member
Join Date: Oct 2010
For my dummy load, I calculated the length of enamelled copper wire (heavy gauge) to give me 2, 4 and 8 ohms. I then wrapped it around a simple wooden former made of 38mm square timber, with tappings at the 2 and 4 ohm points.

The resultant "contraption" was mounted on the workshop wall above the bench.

Largest amp tested was an FPC10000; the dummy load was only slightly warm, but very clearly audible. As a bonus, if you want to monitor the signal waveform, just lean the probe on the wooden frame.

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