[Hallicrafters] off topic HRO-60 coils

[Dan Cotsirilos]

This is what I have found so far. I peaked the front coils in the GC mode 
and improved the sensitivity about 50% but it is still low. The BC mode is 
still dead! I checked the coils on 4 cans and they all conduct ok. I taking 
a break for now. I will check to see if any trimmers are touching on Tues.

There is a strange thing happening, I wonder if anyone has any idea why, 
when I put my hand near the 6BE6 behind the tuning condensers the gain goes 
up to almost normal. If I put the output lead from my signal gen near that 
same tube the S-meter reading is much higher that through the ant connector? 
Very strange! Especially about my hand?  thanks Dan


----- Original Message ----- 
From: "Mark Shaum" <k9tr at dtnspeed.net>
To: "DAN COTSIRILOS" <dcsfree at worldnet.att.net>
Cc: <hallicrafters at mailman.qth.net>
Sent: Saturday, September 04, 2004 3:58 PM
Subject: Re: [Hallicrafters] off topic HRO-60 coils


> Check to see if one of the trimmer capacitors is shorting.  I had one
> that was, the rotor was a single-bearing type so was gently bent back
> into position.  Also that pesky half-turn loop of wire in the coil
> center used to adjust the inductance by bending it to add or buck the
> inductance might break after too many pushes or pulls.  I had one HRO-50
> coil where one of the the metal-blade switches that selects bandspread
> or regular coverage was missing.
>
> 73! Mark K9TR
>
> Original Message
>
> From: "DAN COTSIRILOS" <dcsfree at worldnet.att.net>
>
>
> I can't seem to raise more than one person on the National reflector.
> Does anyone have any experience with HRO-50 60 coils? I have a "D" coil
> that is dead. what can go wrong with these?  Dan
>
>