We found this 6-tube amplifier in a 1947 publication. It is a Public Address amplifier with excellent performance using triodes on the output.
This circuit used in tape recorders was found in an Electronic Design. The components support...
This circuit is recommended by Texas Instruments in the datasheet of the TL317, equivalent to...
CTS IoT Quartz Crystals Available through Mouser Electronics, CTS quartz crystals are especially suited...