Equipment information

RCA 6146B Tubes
Manufacturer:
RCA
Model: 6146B
Date:
Category: Parts
Group: Tubes
Description: BEAM POWER TUBE
Information:

RCA-6146B/8298A is a small, sturdy, beam power tube having high efficiency and high power sensitivity for use in mobile and stationary equipment . It is rated as an af power amplifier and modulator, a linear rf power amplifier, and a Class C rf power amplifier and oscillator. The 6I46B features a heater designed to operate over a voltage range of 6.0 to 7.5 volts and which will take excursions from 5 to 8 volts in battery operation. The heater design insures dependable performance in mobile equipment under operating conditions during battery charging and discharging. See Special Performance Data on page 4 for information coveri ng heater overvol tage and undervol tage operat i on. Controlled zero-bias plate current is offered in the6146Bto insure more dependable performance as a Class AB^ linear rf amplifier for singlesideband suppressed-carrier service. See Test No.3 of Characteristics Range Values. Also featured in the design of the 6146B is the new RCA "Dark Heater", which functions efficiently at operating temperatures 350° K below those of the heaters in conventional tube types. The dark surface of the new heater radiates heat more efficiently and improves the transfer of heat to the cathode so that optimum cathode temperature may be attained with the heater operating at approximately 1350° K. The low operating temperature of the "Dark Heater" results in (1) lower internal stresses in the heater wire and smaller thermal change during heater warmup, (2) cooler operation of the heater which minimizes changes in heater shape and reduces the possibility of heater damage and heater shorts, (3) extremely stable heater current characteristics throughout life, and (4) significant reduction in effects of ac heater leakage. Small in size for its power-output capability, the 6146B has a rugged button-ste’m construction with short internal leads, a T12 bulb, triple base-pin connections for grid No. 3 and cathode (both joined to internal shield inside the tube) beam power tube having high efficiency and high power sensitivity for use in mobile and stationary equipment . It is rated as an af power amplifier and modulator, a linear rf power amplifier, and a Class C rf power amplifier and oscillator. The 6I46B features a heater designed to operate over a voltage range of 6.0 to 7.5 volts and which will take excursions from 5 to 8 volts in battery operation. The heater design insures dependable performance in mobile equipment under operating conditions during battery charging and discharging. See Special Performance Data on page 4 for information coveri ng heater overvol tage and undervol tage operat i on. Controlled zero-bias plate current is offered in the6146Bto insure more dependable performance as a Class AB^ linear rf amplifier for singlesideband suppressed-carrier service. See Test No.3 of Characteristics Range Values. Also featured in the design of the 6146B is the new RCA "Dark Heater", which functions efficiently at operating temperatures 350° K below those of the heaters in conventional tube types. The dark surface of the new heater radiates heat more efficiently and improves the transfer of heat to the cathode so that optimum cathode temperature may be attained with the heater operating at approximately 1350° K. The low operating temperature of the "Dark Heater" results in (1) lower internal stresses in the heater wire and smaller thermal change during heater warmup, (2) cooler operation of the heater which minimizes changes in heater shape and reduces the possibility of heater damage and heater shorts, (3) extremely stable heater current characteristics throughout life, and (4) significant reduction in effects of ac heater leakage. Small in size for its power-output capability, the 6146B has a rugged button-ste’m construction with short internal leads, a T12 bulb, triple base-pin connections for grid No. 3 and cathode (both joined to internal shield inside the tube) Electronic Components and Devices Lancaster, Pa. to permit effective rf grounding, and an octal base with short metal sleeve having its own base-pin terminal. The sleeve shields the input to the tube and isolates it from the output circuit so completely that no other external shielding is required. Separation of input and output circuits is accomplished by bringing the plate lead out of the bulb to a cap opposite the base.

These manuals are available for the above equipment:

Manual Type: User Manual RCA-12451-Manual-Page-1-Picture
Pages: 8
Size: 1.01 Mbytes (1063780 Bytes)
Language: english
Revision:
Manual-ID/Number:
Date:
Quality: Scanned document, reading partly badly, partly not readable.
Upload date:
MD5: 473319333bb38a21c5eeefd1d55cdd8a
Downloads: 115 since 08 January 2020
Uploaded by: Les Merryman KN6CKG
Information:

RCA-12451-Manual-Page-1-Picture


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