Part 2 NON RADAR
Military and Special Purpose Tubes
This sections covers non RADAR vacuum tubes developed after 1946
Frequency Band Terms used in this section
HF to VHF Transmitting Tubes
HF to VHF Transmitting Tubes
The 6146 was used widely from 1950 into 1970The 6146 can put out about 90W while the 2E26 about 40W.
4-400 Beam Power Tube (1950-1970s) used as a modulator and RF output.
400 Watt, Forced Air Cooled up to 110 MHz Class C. Unknown brand but made by EIMAC, RCA and GE. Price: $60 in 1955 Allied Radio Catalog.
400 Watt, Forced Air Cooled up to 110 MHz Class C. Unknown brand but made by EIMAC, RCA and GE. Price: $60 in 1955 Allied Radio Catalog.
RADIO STATION Transmitting Tube
RADIO STATION Transmitting Tube
Close up of water jacket and plumbing and the inside that was damaged (NOT THIS ONE)
1955 Allied Radio Catalog Price- $48
1955 Allied Radio Catalog Price:
6146- $4.902E26- $3.85
1955 Allied Radio Catalog Price:
6146- $4.902E26- $3.85
This family of tubes include the 4-125 (125 W),4-250 (250 W) and 4-1000 (1000 W). They have the same shape and pin configuration.
This tube stands over 11 inches high and weighs 12 pounds. Requires continuous water flow to keep operating temperature safe (see the plumbing connections at the top). This tube is made of ceramic rather than glass for better heat dissipation allowing higher power performance. All electrical connections are made at the lower half of the tube and underneath (see the other pictures). The metal areas are all silver plated.
Shown with special socket and gold plated retainer ring.
UHF and Microwave Tubes
UHF and Microwave Tubes
PENCIL TRANSMITTING TUBES
PLANAR TUBES
TV UHF STATION Transmitter Tube
This tube is used as final or pre final RF power amplifier for UHF Television Transmitter. All ceramic and the metal is all silver plated. It stands about 9 inches and weighs about 10 pounds. Similar is geometry to the ceramic lighthouse tube. Each silver ring is an electrical connection and the output plug at the top is a coaxial connection to the next stage or antenna.
X-RAY Tube
TELEVISION AND LIGHT RELATED
TELEVISION AND LIGHT RELATED
IMAGE ORTHICON
The image orthicon tube was developed at RCA by Albert Rose, Paul K. Weimer, and Harold B. Law. Was first put into use around 1943 for military and around 1946 for commercial use.
RCA 5820A 3 inch dia, Monochrome (Black and White) Image Orthicon Video Camera Tube (1950s)
(Made by RCA Industrial Tube Division- Lancaster, PA)
Updated version of the famous workhorse 5820 tube introduced in the late 1940s. Price: $1200 in 1955 Allied Radio Catalog.
(Made by RCA Industrial Tube Division- Lancaster, PA)
Updated version of the famous workhorse 5820 tube introduced in the late 1940s. Price: $1200 in 1955 Allied Radio Catalog.
RCA 8673 and 8673/s 3 inch dia, Image Orthicon for Color and Black and White Video Cameras (Introduced 1967)
(Made by RCA Industrial Tube Division- Lancaster, PA)
RCA developed this orthicon to replace several older models, tauting a better more sensitive orthicon for both color and black and white applications. Unlike past designs this uses a BIALKYLI target and will reduce ghosting (residual image memory, a common problem when panning the camera from extreme lighting situations). RCA sold a matched set called the 8673/s that were selected for color video cameras, due to the need for three equally performing orthicons (one for red, green and blue) required to send color signals to the tv receiver.
(Made by RCA Industrial Tube Division- Lancaster, PA)
RCA developed this orthicon to replace several older models, tauting a better more sensitive orthicon for both color and black and white applications. Unlike past designs this uses a BIALKYLI target and will reduce ghosting (residual image memory, a common problem when panning the camera from extreme lighting situations). RCA sold a matched set called the 8673/s that were selected for color video cameras, due to the need for three equally performing orthicons (one for red, green and blue) required to send color signals to the tv receiver.
These 8673 image orthicons were part of a matched set labeled 8673/s on the shipping cartons.
Image orthicons are very expensive vacuum tubes often costing over $3000 a piece. RCA provides a booklet "Tips On Using Image Orthicons" that is supplied with each one purchased.
Image orthicons are very expensive vacuum tubes often costing over $3000 a piece. RCA provides a booklet "Tips On Using Image Orthicons" that is supplied with each one purchased.
A more rugged and light sensitive pickup, the orthicon replaces the bulky and fragile looking iconoscope in the 1950s.
The 8673 was probably one of RCA's best image orthicon. At the peak of this technology. The vidicon would slowly make its way into video cameras. However image orthicon type tubes remain in studio video cameras into the 1980s.
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