[Hammarlund] Super Pro 210-SX rides again

[Bob Young]

Mine's the SX model: 5 bands, starts at 1.25-2.5, 2.5-5.0, 5.0-10 etc. up to 
40 mHz. The low band 1.25-2.5 acts like it wants to hear, and I hear what 
sounds like back ground noise but it goes down into the BCB and I have a 1 
kw station less than a mile from here on 1310 and there's nothing from it. 
I'll try the contacts next I have some de-oxit. I think it might be more 
than that but we'll see and thanks for the attaboys, felt really good when I 
heard that hiss as I powered it up. It's out of alignment also.

Bob Young


----- Original Message ----- 
From: "Al Parker" <anchor at ec.rr.com>
To: "Bob Young" <youngbob53 at msn.com>; "hammarlund" 
<hammarlund at mailman.qth.net>
Sent: Monday, April 17, 2006 2:15 PM
Subject: Re: [Hammarlund] Super Pro 210-SX rides again


> Hi Bob,
>     I echo Ken's kudo's, you're doing great.  It's a neat old rcvr.
>     A thought on your dead band - the last/first? one I did had a toasted
> antenna coil for one band. It was the VLF model, it was the 100-200kc band
> on it, but could be any.  It did hear, but very weakly, sounds like yours
> is completely silent.  You might do some continuity checking, might find
> that, or a loose connection on that neat guillotine bandswitch arrgt.  I
> have a neat, old, little, SS, signal(noise actually) injector that I can
> poke onto each section of the main tuning capacitor in most radios & track
> down dead stages in that area pretty easily.
>     I'm sure I've sent you the link to that work b4, but it's:
> http://www.boatanchors.org/SP200.htm
>     just in case.  The recap process is pretty well covered there I think.
> I have another to do, in the project queue.
> 73,
> Al, W8UT
> New Bern, NC
> BoatAnchors appreciated here
> http://www.boatanchors.org
> http://www.hammarlund.info
>
>
> ----- Original Message ----- 
> From: "Bob Young" <youngbob53 at msn.com>
> To: "hammarlund" <hammarlund at mailman.qth.net>
> Sent: Monday, April 17, 2006 1:26 PM
> Subject: [Hammarlund] Super Pro 210-SX rides again
>
>
> > Three problems I had, one remains: the 1.25-2.5 mH band does not receive
> and
> > one of the wires from the output transformer secondary was not soldiered
> > well onto the earphone jack and was open and there were two or three
> dead
> > tubes. I was testing it on the 1.25 band and did not see meter
> deflection
> > and of course I got no sound. It is now working pretty well on all bands
> > except for the lowest band, the voltages look good from the power supply
> and
> > there is very little hum at all. I realize it will still need to be
> recapped
> > though.
> > Any ideas on the dead band?
> >
> > Thanks every one,
> >
> > Bob Young
>
>