1936 RCA RR-359B Restoration

[tubesrule]

Originally Posted by Penthode

So the transition includes from 1934 thru early 1936 343 lines with a 4 MHz channel and 2.25MHz carrier spacing. For the July 1936 343 line first public demonstration, RCA engineers moved to the 6 MHz channel where it was first used with double sideband video and a 3.25MHz carrier spacing.

Last time in the hopes that anyone reading this in the future will not have bad information. The pages from Television II clearly show the 343 was 2.25MHz spacing and the 441 was 3.25MHz spacing.

NO, as all the actual dated original documents that have been presented here have shown, the 343 line field test was NEVER at 3.25MHz carrier spacing. The RF Alignment manual I copied showed they were aligning the 343 line RR-359 sets to 2.25MHz in November of 1936. I fail to understand your instance to the contrary without ever providing a single piece of original documentation of support.