[Penthode]

Here are a few more photos including the published notes photos.

For for the IF and baseband bandpass alignment, I used the combination HP8601a RF Sweep Generator with HP8600a Digital Marker. The HP 8601a sweep rand is from 100kHz to 110 MHz.

For the complete VHF Tuner alignment from Channel 2 to 13, I used a Wavetek Model 1050 Sweep Generator with the HP8601a as the Frequency Marker. For Channel 13 marking, the HP8601a second harmonic was easily seen.

(The HP 8601a goes up to only110MHz and the second harmonic of 105.6 MHz is 211.25 MHz which is the video carrier on channel 13).

As my scope has a 100MHz bandwidth, I did not feel necessary the demodulator probe suggested by the RCA notes. Hence my snapshots show the un-demodulated or un-rectified carrier frequency sweeps.