[Hammarlund] HQ-120X Restoration Versions/Schematics

Joe Connor joeconnor53 at yahoo.com
Sun Feb 20 08:24:34 EST 2011


Does anyone know about the different versions of the HQ-120X? 

I've already found a couple of difference between my set and the manual on BAMA.

On mine, one of the cathodes of the 6F8 (pin 4), goes directly to ground and one of the plates (pin 3) attaches to a 25K/1 W resistor. In the manual on BAMA and in the Rider's schematic, however, that cathode attaches to a 230-ohm resistor and that pin attaches to a 10K/1 W resistor. On BAMA, there is an additional schematic for my version but no parts list or voltage chart).

Does anyone know where I could get a parts list and voltage chart for my version? Which version is the later/better version? For example, if the other version is better, it would be simple to rewire the 6F8.

As always, thanks for your help.

                                        Joe Connor


      


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