L-12 is the plate load for both the single and double conversion 6BE6's, and should be added to either the L2 through L11 list or to step 11 of the second converter tuning procedure, and tuned/peaked for 455KC.
interesting they didn't say anything about it.
Thanks very much! By 455kc, I assume you're referring to the the true frequency of Y-1 (which may be slightly different than 455kc, plus or minus). I've run into a curious and unexpected problem with the crystal filter -- if you go to position 1, you can hear the filter engage, but positions 2 through 5 produce no discernible difference in selectivity. During alignment, L-13 produces a maximum meter indication, but C-38's peak is very vague, if at all. In response to this, I opened up T-5 and performed an inspection -- S-5 had a lot of tarnish and I cleaned that up. Everything else, however, seemed just fine -- no mechanical or electrical issues that I could identify. The problem persists. At this point I believe it's a possible alignment issue and am revisiting T-5. If you have any comments or suggestions it would be greatly appreciated.
By the way, I don't recommend working with T-5 for fun. There are a lot of things I really like about the HRO-60 design -- but the physical construction of the crystal filter assembly ain't one of 'em!
73 - Steve, KW4H