It took about 24-hours after my payment before I was able to get to the download. Apparently, payment processing is not 100% automated. That is no big deal, just be aware of that going in.
After I got to it, it was in good shape, easy to read, etc. Not some cheap FAX copy looking thing.
Also, this site was the cheapest I found. Another Plus!
Good price, very legible manual, exactly what I needed -- but had to wait a day to actually get the download of the manual. Would have preferred to download it immediately after payment rather than waiting for someone to "process" my order. I was surprised that I had to wait that long.
As the only source for this manual it rather rank quite high since it is well scanned and perfectly readable.
Text excerpt from page 25 (click to view)
HTP-55
6.1.4 AM TRACKING ADJUSTMENT
Signal Generator.........Connects to the AM ANT. Coil through the Loop Antenna. Adjustment for the indication of VTVM of the wave form scope to be maximum.
Fig.4
6.1.5 FM TRACKING ADJUSTMENT
Signal Generator.........Connects to the FM ANT Jack (FM IN) through the dummy.