TEN-TEC 15/10M Option Board 81546 for Model 422 Centurion HF Amplifier For Sale

This lot containsone used TEN-TEC 15/10M Option Board 81546 (Model 422-10) for Model 422 Centurion HF Amplifier.The Model 422-10 Ten Meter Option board kit is designed to enable operation of the Centurion on the 10 meter band. In addition, a new 15 meter low pass filter circuit will provide improved performance on 15M. Here is the summary of the procedure: Originally installed is the #81550 15 M Input Filter Board. This is accessed by removing the top cover and sliding it towards the rear about 1/4\" and then lifting upwards. This is a small rectangular plug in circuit board installed on the larger #81539 Input Low Pass Filter board. Remove the #81550. Install the new #81546 15/10M Input Filter board aligning it with the silkscreen outline on the #81539 board. Make sure the 8 pins align correctly and gently press the new board into place. Place the Band switch in the 160M position and locate the Band switch stop screw and collar. Loosen this screw and slide the collar toward the front panel so that the screw will clear the switch stop pin. Tighten the screw. Make sure the Band switch will now rotate to the 10M position. ..Please ask questions, if any.Item sold as is . No refund, no return.I do combine shipping on most items.

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