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HQ-120 Need Power transformer info




 
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Author Topic: HQ-120 Need Power transformer info  (Read 344 times)
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KG4PBI
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« on: March 22, 2023, 04:39:38 PM »

Hello,

I have a HQ-120 receiver I have had for a good number of years, that I re-capped and was my favorite listening receiver. One morning after listening a number of hours the fuse popped, and it was dead.  From checking, it looks that one side of the HV has shorted out. I have a copy manual, and have searched online, but not finding the full exact specs for a replacement transformer. Hammond has a few that sound close, however before buying the wrong one wanted to see if someone had information on the transformer, or had replaced their transformer that could provide as to which one they installed. 

73

James  WS4JH
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DMOD
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« Reply #1 on: March 23, 2023, 12:45:52 AM »

Hello,

I have a HQ-120 receiver I have had for a good number of years, that I re-capped and was my favorite listening receiver. One morning after listening a number of hours the fuse popped, and it was dead.  From checking, it looks that one side of the HV has shorted out. I have a copy manual, and have searched online, but not finding the full exact specs for a replacement transformer. Hammond has a few that sound close, however before buying the wrong one wanted to see if someone had information on the transformer, or had replaced their transformer that could provide as to which one they installed. 

73

James  WS4JH

From the schematic here is my guestimate on the transformer specs:

Primary - 115V
Secondary 1 - 500Vac CT, 250mA
Secondary 2 - 5Vac, 2A
secondary 3 - 6.3Vac, 5 to 6A

Phil
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W7TFO
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« Reply #2 on: March 23, 2023, 06:47:05 AM »

I have one for you.

Hit me with a PM and we can go from there.

73DG
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