In the Application Guide on the fol-lowing pages, RCA receiving tubes are classified in two ways: (a) by function, and (b) by structure (diode, triode, etc.).
The functional classification covers 38 principal types of application, as listed below.
Tube types are grouped by struc-ture under each classification; they are also keyed to indicate miniature, octal, nuvistor, and novar types.
Triodes are designated as low-, me-dium-, or high-mu types on the following basis: low, less than 10; medium, 10 or more, but less than 50; high, 50 or more.
Where applicable, tubes are designated as sharp-, semiremote, or remote-cutoff on the basis of the ratio, in per cent, of the negative control-grid voltage to the screen-grid voltage (or, for triodes, the plate voltage) as given in the character-istics or typical operation values. These terms are defined as follows: sharp, less than 10 per cent; semiremote, 10 or more, but less than 20 per cent; remote, 20 per cent or more.
For more complete data on these types, refer to the TECHNICAL DATA FOR RCA RECEIVIN G TUBES start-ing on page 83.
APPLICATIONS:
1. Audio-Frequency Amplifiers
2. Automatic Gain Control (AGC and AVC) Circuits 3. Burst Amplifiers 4. Cathode-Drive RF
Ampli-fiers (Grounded-Grid) 5. Color Killers
6. Color Matrixing Circuits 7. Complex-Wave
Generators 8. Converters 9. Dampers
10. Demodulators (Color TV) 11. Detectors
26. Phase Inverters 27. Phase Splitters 28. Radio-Frequency
Alllplifiers 29. Reactance Circuits 30. Rectifiers 31. Regulators
32. Relay Control Circuits 33. Sync Amplifiers
igh-Mu Triode with Twin Diode
• SA V6 o6CN7 o 12SQ7
• 4A V6 o6SQ7 0 12SQ7GT
Medium-Mu Triode with Twin Diode o6AT6 o6SQ7GT o 14GT8
.6BF6 • 12BF6 0 12SR7
o6SR7
Medium.Mu Triode-Sharp-Cutoff Pentode 07199 t
Medium-Mu Twin Triode
o6AV6 o 12AT6 o 18FY6
o6BN8 o12AV6 o18FY6A
High-Mu Triode with Triple Diode
• 5T8 o6T8A 0 19T8
L>Nuvistor • Novar t For high-fidelity equipm.ent.
75
====== RCA Receiving Tube Manual
itemo'e-Cutoff Pentode with Diode812CR6
2. AUTOMATIC GAIN CONTROL CIRCUITS (AGC & A VC)
High-Mu Triode with Twin Diode.
.6BNS
4. CATHODE-DRIVE RF AMPLI.
FIERS (GROUNDED.GRID)
6. COLOR MATRIXING CIRCUITS
Medium-Mu Twin Triode
.6CG7 86GU7
.6FQ7 8SCG7
8SFQ7 812BH7A
7. COMPLEX.WAVE GENERA • TORS
High-Mu Twin Double-Plate Triode .12FQS
======== Application Guide ========
06AX4GT o 12AX4GTA 06AX4GTB o 12AX4GTB06AY3 o 12AY3
10. DEMODULATORS (COLOR TV)
Medium-Mu Twin Triode
o 4DT6A" 06DT6A"
12_ DC RESTORERS
04DT6A" o 6DT6A"
05GX6* 06GX6*
High-Mu Twin Double-Plate Triode o 12FQ8
... Novar • Dual-control grid,
77
====== RCA Receiving Tube Manual ======
15. FM DETECTORS
(See 13. DISCRIMINATORS)
16. GATED NOISE, AGC, AND SYNC AMPLIFIERS
High·Mu Triode-Sharp.Cu~off Pentode
o6KAS oSKAS
17. HARMONIC GENERATORS
(See 7. COMPLEX.WAVE GENERATORS)
18. HORIZONTAL.DEFLECTION
• Dual-control grid.
78
Sharp.Cutoff Pentode with Diode
o 5AMS 0 6AMSA 0 6KLS
06SK7GT o 12SK7GT
Remote·Cutoff Pentode with Diode
o 6EQ7 0 12EQ7 0 20EQ7
Sharp.Cutoff Pentode with Diode
o 6KLS 0 12KL8
• Approaches semiremote-cutoff characteristic;
used in first-if amplifier applications
========- Application Guide =======_ ...
High-Mu Twin Triode
o 6DTS 012AT7
24. NOISE INVERTERS
o 12SN7_
Low Frequency, Sweep Type
Medium-Mu Triode-Sharp-Cutoff Pentode
High Mu Triode with Twin Diode
o 6BNS 06CN7
26. PHASE INVERTERS
Medium-Mu Triode-High-Mu Triode o 12DW7
1>2DS4 1>6CW4 06FQ5A
02FH5 1>6DS4. 06GK5
====== RCA Receiving Tube Manual
Power Triode o 6C4 (Class C) Sharp-Cutoff Tetrode
o2CY5 o6CY5
oSCY5
Sharp-Cutoff Pentode
oSAU6 o6AK5
• SBC5 o6AU6A
oSCB6 o6BC5
.SCF6 o6BH6
o4AU6 o6CB6
o4CB6 o6CB6A
o6AB7 o6CF6
o6AC7 o6DC6
o6AG5
Sharp-Cutoff Pentode with Diode o 6KL8 • 12KL8 Semiremote-Cutoff Pentode
o 6SG7 o 12SG7
Remote-Cutoff Pentode
o SBA6 o6SK7GT
o6BA6 o6BJ6 o6SK7
o 12BA6 o 12SK7
Remote-Cutoff Pentode with Diode
o 6EQ7 0 12EQ7 0 20EQ7
29. REACTANCE CIRCUITS
Medium-Mu Triode-Sharp-Cutoff Pentode
o 5AN8 0 6AZ8 0 6CH8
o6AN8A o6BA8A o6CU8
High-Mu Triode with Twin Diodes o6CN7
High-Mu Triode-Sharp-Cutoff Penlode
o6AW8A o8AW8A
30. RECTIFIERS
Power-Supply Types-Vacuum Half-Wave (Diode)
o S5W 4 0 S6AMSA
oS5Z5GT oS6AMSB
Full-Wave (Twin Diode)
oSDG4 05VSA
o 5AS4A o5VG4
.5BCS 05DJ4 05U4G 05U4GB
• Miniature
80
o5V4GA o5XG4 o5YSGT 05Y4GT
o50DC4
o5Z4 06AX5GT o6CA4 o6X4 06X5GT o 12X4 o Octal
High-Voltage Types (For rf-rectifier or pulsed low-current applications)-Vacuum
Medium-Mn Triode-Sharp-Cutoff Pentode
o 6AU8A 0 6CX8 • 8CX8
o6AZ8
Medium-Mu Twin Triode
o6CG7 o7AU7
High-Mu Triode with Twin Diode o6CN7
o12AU7A
High-Mu Triode-Sharp-Cutoff Pentode
o 6AW8A o8AW8A o8JV8
o6JV8
High-Mu Twin Triode o 12BZ7
34. SYNC CLIPPERS
Medium-Mn Triode-Sharp-Cutoff Tetrode
o 5CQ8 o6CQ8
Medium-Mu Triode-Sharp-Cutoff Pentode
.5AN8 o6AZ8 o6CX8
o 6AN8A 0 6CH8 0 8CX8
o6AU8A o6CU8
High-Mu Triode-Sharp-Cutoff Peutode
o 6AW8A .6JV8 o8GN8
o6EB8 o6GW8 o6HF8
o8AW8A o8EB8
High-Mu Twin Triode o 12BZ7
t>Nuvislor
o8JV8 o10HF8
... Novar
======== Application Guide ========
High-Mn Triode-Beam Power Tube .lSKYS
High-Mn Triode with Twin Diode .6CN7
36. TUNING INDICATORS
Indicator with Triode Unit
6ES 6US
Twin Indieator Units o6AF6G
37. VERTICAL.DEFLECTION CIRCUITS
Oscillators and Amplifiers (Combined) Medium-Mu Triode-Low-Mu Triode
38. VIDEO AMPLIFIERS
.6EM5
Sharp-Cutoff Pentode with Diode
8SAMS 86AMSA
For information on picture tubes, refer to the RCA PICTURE TUBE CHAR·
ACTERISTICS CHART at the end of the TECHNICAL DATA section.
81
82
1-Glass Envelope 2-lnternal Shield 3-Plate
4-Grid No.3 (Suppressor) 5-Grid No.2 (Screen) 6-Grid No.1 (Control Grid) 7-Cathode
a-Heater 9-Exhaust TIp 10-GetterO
11 -Spacer Shield Header 12-lnsulating Spacer 13-Spacer Shield 14-lnter-Pin Shield 15-Glass Button-Stem Seal 16-Lead Wire
17 -Base Pin
18-Glass-to-Metal Seal