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Building an amp controller. Have all the measurement pieces in place. Main goal of the controller is to keep the radio from overdriving the amp and blowing the chip. The controller won’t allow the amp to engage if the power from the radio exceeds 5 watts. Ran a few tests and it seems to work.
April 8, 2025 at 8:12 PM
Building an amp controller. Have all the measurement pieces in place. Main goal of the controller is to keep the radio from overdriving the amp and blowing the chip. The controller won’t allow the amp to engage if the power from the radio exceeds 5 watts. Ran a few tests and it seems to work.
Finished the Drake PS-4 power supply rebuild. After some measurements that checked out, I am about to try the supply with my T4X-B. If it works, the idle current will go to .0707 amps. If it does, expect a lot of magic smoke. The plate voltage is 650.
Bias voltage reads -55 volts.
Bias voltage reads -55 volts.
January 5, 2025 at 11:44 PM
Finished the Drake PS-4 power supply rebuild. After some measurements that checked out, I am about to try the supply with my T4X-B. If it works, the idle current will go to .0707 amps. If it does, expect a lot of magic smoke. The plate voltage is 650.
Bias voltage reads -55 volts.
Bias voltage reads -55 volts.
This is one of my 20AH batteries designed for ham operators. Instead of using a 20 amp power plate, I am using a 40 amp plate. That means it is capable of more than 20 amps continuous. Look how easily it drives the 7300 to 100 watts CW.
January 4, 2025 at 4:22 PM
This is one of my 20AH batteries designed for ham operators. Instead of using a 20 amp power plate, I am using a 40 amp plate. That means it is capable of more than 20 amps continuous. Look how easily it drives the 7300 to 100 watts CW.