[Boatanchors] HRO-60... problem

[Rodger Singley]

Pete,



There are a couple of pretty good images of that part on the web:  http://www.isquare.com/personal_pages/hro50.htm



That is a HRO-50 but the parts are the same.  There is a tension bar and rubber O ring around the shaft that provides the friction, I suspect your O ring is missing or glazed.



While you are in there check for a .1 capacitor from one rectifier plate to ground; if found remove it to avoid taking out your power transformer when it shorts.  National used these for a short time but later removed them from production.  They are useful only to those who sell replacement transformers.



Rodger WQ9E



Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10



________________________________
From: boatanchors-bounces at mailman.qth.net <boatanchors-bounces at mailman.qth.net> on behalf of Pete Williams <jupete at internode.on.net>
Sent: Tuesday, May 8, 2018 6:57:43 AM
To: boatanchors at mailman.qth.net
Subject: [Boatanchors] HRO-60... problem

​G'day  list...

I've taken  delivery  of a    HRO-60... mostly  OK  but  the band selector
control appears  to  have  lost a  vital part  that I  presume drives the
mounted  strips  via  some  sort of  friction drive.
The  shaft   and   related  mechanical  parts  appear to  be in situ, but
something  missing  ?
Would someone   send me a  photo  or  description  as to  how the mechanism
is    supposed to  function...  nothing about it in  the  manual...  Thanks
.
Pete
VK3IZ
jupete at internode.on.net
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