CT1-BOX is designed by Douk Audio, in order to measure the cathode current of the power tube for bias reading (at low voltage side of the tubes), suitable for EL34, KT88, 6L6, 6V6, 5881, 6550, KT66, KT100, KT120, 7027 etc., equipped with large current meter, easily and distinctly to read.
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CT1-BOX is designed by Douk Audio, in order to measure the cathode current of the power tube for bias reading (at low voltage side of the tubes), suitable for EL34, KT88, 6L6, 6V6, 5881, 6550, KT66, KT100, KT120, 7027 etc., equipped with large current meter, easily and distinctly to read.
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Remove the power tubes, insert them into the bias probe sockets. 1 Pair × Probe Tester. If not, the difference should be no more than 2mA or 3mA for a good balance between the tubes. Adopting copper wire to ensure excellent conductivity.
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Suitable for tube model EL34,KT88,6L6,6V6,5881,6550,KT66,KT100,KT120,7027 etc.
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2 x Plate current probe for testing anode current on most octal power tubes like 6L6 6V6 EL34 KT88 5881. Bias probes also available. Insert tube in the socket of the probe. Insert probe. Remove tube.
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Unit itself has not been opened, and none of the other boxed components have been used. I bought the original unit w/ four noval (9 pin) probes for £154 on Hot Rox UK, and added four octal (8 pin) probes to the order for £40, totalling £194.
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Suitable for tube model EL34,KT88,6L6,6V6,5881,6550,KT66,KT100,KT120,7027 etc.
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