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Wednesday, June 22, 2022

Hammarlund and Homebrew Heroine: Janis AB2RA, HQ-100 Filter Cap Question


I was searching for Hammarlund HQ-100 wisdom when Google pointed me to the Electric Radio articles of Janis AB2RA.  They were in  ER #380 and #381 (February and March 2021).  Lots of good stuff  in there.  

This morning I happened upon a 2014 SolderSmoke blog post (as you do) about my Tuna Tin 2. Turns out that Janis was my first contact with this rig.  And she too was running a homebrew rig. TRGHS. 

I continue to work on my HQ-100.  The AC hum is getting worse so I have ordered a replacement capacitor can from Hayseed Hamfest.   But I was a bit confused about which cap to order.  Hayseed has two caps listed for the HQ-100 -- one (it seems) for the early model of this receiver and one for later models.  Is that right?  Did Hammarlund update the power supply to add filter capacitors?  Take a look: 

Dean KK4DAS is getting ready to work on his dad's HQ-170A.  He too will find lots of wisdom and tribal knowledge on Janis's wonderful web site.  

Her main page: http://www.wireless-girl.com/  (with a vast amount of technical info available through the links on the upper left side of this page) 

About Janis: http://www.wireless-girl.com/AboutMe.html

Thanks Janis!  

The Original Wireless Girl

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