Quote:
Originally Posted by Radio Wrangler
Every watt you can save would help.
|
The shunt stabiliser (S130) and it's 3k feed resistor are also very power hungry. Of the 40mA the resistor is passing only 10mA is supplying the LO and BFO.
With today's cheap high voltage FETs it would be very easy to replace the active hum reduction and shunt stabilisers with series pass regulators saving a good few watts of HT and heater power.
Al