[GreenKeys] HAL ST-6 Manual

[keelan at beefchicken.com]

I'm trying to hunt down a manual for a HAL ST-6. I have a good in-depth 
article on the Mainline ST-6, but I haven't been able to track anything 
down the for HAL's version.

My unit appears to be working (alternating mark/space lamps flashing 
when I feed it a valid signal), until I connect it to a teletype, in 
this case a 28KSR. After that, it sits on mark with no activity on the 
printer. I may have the 170/850 boards mixed up -- the 170 Hz shift 
limiter might be plugged into the 850 Hz shift Discriminator (or 
vice-versa). What order should these boards me in?

FWIW, In tuning mode on 850 shift, I get peaks on the meter at 2125 and 
somewhere around 3KHz (?) (pure sine wave tuning input). On 170 shift, I 
only get a peak at 2125 Hz.

Thanks,

Keelan

VE7NCR