[Hammarlund] HQ-180(A) manuals

[Les Locklear]

Attached is "the correct" manual to use for alignment. Previous copies had it wrong. It's also the most complete manual since it cover all variants of the HQ-180 series.
 
Les Locklear

----- Original Message -----
From: Bob Young <bobyoung53 at hotmail.com>
To: <hammarlund at mailman.qth.net>
Sent: 12/9/2023 9:42:37 AM
Subject: [Hammarlund] HQ-180(A) manuals
________________________________________________________________________________

> I'm not sure if this got received by the reflector as I usually get a copy right after I send it.
> 
> I have an HQ-180 manual from 1962 and an HQ-180A from 1970 (TECHNICAL 
> DESCRIPTION TEST AND OPERATING INSTRUCTIONS), the directions from the 1970 one 
> tell me to inject 455 KHz into pin 7 of V2, adjust L4 for max signal and then 
> top and bottom of T3, T4, T5 and then the top of T1, the one from 1962 tells me 
> to inject 3035 KHz the same place and do the same. When I inject 455 I get no 
> signal, when I inject 3035 and adjust for max signal (approx 3035.80) I get 
> signal and everything adjusts. Also the newer one tell me to use both sidebands 
> and the 3 KHZ position, the old one tells me to use L sideband and the 0.5 KHz 
> position. When I use the new manual and inject 3035 and follow the directions 
> the circuit resonates at about 3037, old book directions 3035.80. Any ideas? I 
> am inclined to follow the older manual as at least it seems to work.
> 
> Bob
> kb1okl
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