To run my LM4702 amplifier "inverted" I need to outboard a couple opamps, (probably the OPA2604 which will run off +/- 24V rails.) Ergo hoc, i did some research on the 2-Transistor Regulator from Morgan Jones "Valve Amplifiers, 4th ed."
Here's the adapted schematic -- using the 2SB649AC and 2SD669AC which i have in abundance. The reference is a 9.1V zener:
[IMGDEAD]http://www.tech-diy.com/RegPowerSupplies/2TransistorRegulator/2Trans_Schem.gif[/IMGDEAD]
Note that the output cap is now 4.7uF rather than 47uF in the book. The latter seems to overdamp the regulator:
[IMGDEAD]http://www.tech-diy.com/RegPowerSupplies/2TransistorRegulator/2TransistorBode.gif[/IMGDEAD]
Here's the adapted schematic -- using the 2SB649AC and 2SD669AC which i have in abundance. The reference is a 9.1V zener:
[IMGDEAD]http://www.tech-diy.com/RegPowerSupplies/2TransistorRegulator/2Trans_Schem.gif[/IMGDEAD]
Note that the output cap is now 4.7uF rather than 47uF in the book. The latter seems to overdamp the regulator:
[IMGDEAD]http://www.tech-diy.com/RegPowerSupplies/2TransistorRegulator/2TransistorBode.gif[/IMGDEAD]