Vietnam or Thailand ? Vote for the TOP Country of the Week !
Updated: May 13, 2025
The tube costs $8.00 and the porcelain base is $1.00 extra. It is shown at E. The Storage Battery and Rheostat. This must be a 5-cell battery so that it will develop 10 volts. A storage battery of any capacity can be used but the lowest priced one costs about $22.00. The rheostat for regulating the battery current is the same as that used in the preceding experimental transmitter.
The tube costs $8.00 and the porcelain base is $1.00 extra. It is shown at E. The Storage Battery and Rheostat. This must be a 5-cell battery so that it will develop 10 volts. A storage battery of any capacity can be used but the lowest priced one costs about $22.00. The rheostat for regulating the battery current is the same as that used in the preceding experimental transmitter.
Word Of The Day
Others Looking