#Rca victor radio model 19k install#
The pot seems to be OK now and the front end and local oscillator work properly.Īfter I fixed the pot, a coil winding in the RF stage opened (the front end went dead) and I had to install a substitute windingĬlose to the large coil assembly underneath so it would couple into the next stage. The picture below shows the repaired pot.īelow is the repaired pot with the wiper in place. I opened up the pot and used silver paint (paint with silver in it) to short out the open. The local oscillator did work initially but when the volume control pot opened, the local oscillator quit working. The front end RF amplifier and the local oscillator are connected to the volume control. It took me a while to figure that out because the tube tested good initially.Īfter a while, the volume control pot opened and the front end was dead. That confused me for a while because the B+ could not be maintained and I thought I had a short, but it was the tube giving up. The #80 rectifier tube would initially work, but it soon could not produceĮnough emission to power the radio. The other five tubes were either very weak or had open filaments. I first checked all of the vacuum tubes and only 3 of the 8 tubes were good, and those were the two # 35 tubes and the #80 rectifier tube. However, this radio had a lot of electrical problems. The radio looked in good physical shape when I received it. Thus you can use the audio section (the #27 detector tube and the two #45s) to amplify the phonograph audio. On the rear of the radio, there is a terminal strip where you can inject the audio from a magentic pick-up (phonograph). The circuit is a single conversion superheterodyne with an intermedate frequency of 175 kHz. If there isĪ lot of static from thunderstorms, the static crashes will be extremely loud and overwhelm the audio program. You are listening to a station whose signal strength is not constant, the volume will go up and down. Although it isĪ superheterodyne circuit, it has no automatic gain control (AGC) so the volume will vary with signal strength. The radio is AM only and has eight vacuum tubes. This radio is a 1931 RCA Model R7A Superette. Vacuum tubes: tested and working.1931 RCA Victor Model R-7A Superette 1931 RCA Model R-7A Superette Product: antique radio, vintage radio, retro radio, vacuum tube radio, AM radio, art deco, mid-century product.Įlectronics: Mounted circuit board or chassis.
#Rca victor radio model 19k professional#
Comes from non-smoking, mature, clean professional environment.ĭIMENSIONS: Approximately 12" x 8" x 8" (l x w x h) All wiring has been thoroughly checked for possible bridging and weak solder connection.
The radio has been thoroughly cleaned and inspected. Original antenna loop is securely mounted and works perfectly. The replacement power cord and safety polarized plug is in excellent original working condition with no cracks, or splits. The set has been aligned according to factory specifications. There is no loud or pervasive static between stations. All out-of-spec resistors have been replaced with modern correct value and voltage equivalents. All paper and wax capacitors have been replaced with modern equivalents so this radio has another 50+ years or more of playing time! Bottom factory label is mostly missing. No missing ink, smudges, or rub-off on dial lettering. The tuning dial cover is clear no yellowing no cracks some warping but securely attached. This radio is over 75 years old! All the dial numbers are crisp and clear. This vintage radio plays great with or without an external antenna attachment. Knobs are original and securely attached. Original factory ivory paint has dings and scratches throughout. Picks up AM stations clearly and loudly up and down the dial. Antique Ivory Bakelite 1942 RCA Victor Model 6X2 Vacuum Tube AM Radio Sounds Great!ĭESCRIPTION: Tabletop tube AM radio manufactured by RCA Victor in 1942 in excellent working condition.
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