TELE-TECH & - AmericanRadioHistory.Com

TUBES MAKE POSSIBLE
LOW HEAT DISSIPATION!
reduced temperatures, minimum cabinet space!
Series- string tubes for television were pioneered by General
Electric, so that designers could match cost -saving with reliable
TV performance. Over 50 G -E 600 -ma series -string
types with uniform warm -up time already are available for use
in larger models of television receivers.
Now General Electric targets the needs of the fast -growing
market for small second sets and portables with new 300 -ma
and 450 -ma series -string tubes. Power requirements are
lower, and less heat is generated. As a result, cabinets can be
smaller and lighter than ever before.
The 22 new 450 -ma types listed below, include among
them a full tube complement for medium -to- small -size series -
string receivers. Designers of still more compact sets -down
to 8 -inch portables -will find that the 8 new 300 -ma series -
string types plus a 1V2 high -voltage rectifier can be used to
make up a complete television circuit.
Ask for G -E series -string tube recommendations to cover
your new, small sets now in the drawing -board stage! Address
Tube Department, General Electric Co., Schenectady 5, N. Y.
NEW G -E 450 -MA SERIES- STRING TUBES NEW G -E 300 -MA SERIES -STRING TUBES
TYPE PROTOTYPE TYPE PROTOTYPE TYPE PROTOTYPE TYPE PROTOTYP
3AF4 -A 6AF4 -A 6U8 -A 6U8 6AU6 -A 6AU6 9U8 -A 6U8
4BC5 6BC5 8AU8 6AU8 6CE5 (Note 1) None 1008 (Note 2) None
4BN6 6BN6 8BH8 6BH8 6CB6 -A 6CB6 17H3 (Note 3) Nono
4BU8 6BU8 8CG7 6CG7 7A U7 7AÚ7 18A5 (Note 4) Nono
4CB6 6C136 8CM7 6CM7
58Q7 -A 68Q7 -A 8CN7 6CN7 1. Improved version of 6BC5.
5BZ7 6BZ7 9AU7 12AU7 2. Miniature triode pentode, for use in venia
6AQ5 -A 6AQ5 17AV5 -GA 6AV5 -GA deflection circuit.
6BK7 -B 6BK7 -A 17AX4 -GT 6AX4 -GT 3. Miniature damping diode.
6J6 -A 6J6 17C5 5005 4, Octal -base beam pentode. Horizontal swee
678 -A 678 17D06 6D06 tube.
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