Power Attenuator Corrected Layout

Sprat 152 features the article:
Power Attenuators with carbon resistors from the E12-series, by Bert PA1B


In the drawing of the layout 
the resistor R2 should be connected to R1 and R3.
The resistor R5 should be conected to R4 and R6.
The arrows point to the right connections.

Click to enlarge


Power attenuators for the FT-817
The maximum power to the attenuators is 2.5 W, to make 250 mW, using the 10 dB attenuator, or 25 mW using the 20 dB attenuator, as shown in the table. I use the attenuators exclusively for CW. Since the average power of a CW signal is about half of the continuous power, the attenuators must be able to dissipate a power of at least 1.25 W.
The continuous maximum input power of the 20 dB attenuator is 1.5 W and 1.7 W for the 10 dB attenuator.
These power attenuators are asymmetrical. The input of the attenuator is connected to the set and the output to the tuner or the antenna. Input and output of asymmetrical attenuators, should not be reversed. This will destroy the attenuator, since R3 and R6 can not dissipate more than about ½ watt.

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