From: "Al Parker" 
Subject: Re: [drakelist] Tr-4 Low receive update


"Al Parker"  made an utterence to the
drakelist gang
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Hi Matt,
    This isn't very technical, but -- my first TR-4, back in about 1974,
was about the same.  (I've had a bunch of them in various versions since,
and should be more analytical -but--.)  Back then as I remember, 10m
wasn't much, but did come open some.  My TR-4 was like yours on 15 & 10m,
I just turned up the AF gain and worked a lot of folks.  Maybe if I knew
more then I might hv helped it some, but it did well, and the friend I
sold it to worked the world with it, after I did.  If you can hear some
more "antenna" noise when you peak the RF Tune ctrl, then you're getting
signals thru, and it's sensitive.  It seems like you do hear signals,
maybe the same ones you hear on the SS rig, but not as much S-mtr
indication.
    Take a look at the manual and do the RF alignment in the order they
recommend, you might peak it up some on 10 & 15.  You can do it with the
xtal calibrator signal, don't need any special eqpt.  If you need more
specific instructions let me know.
73,
Al, W8UT
New Bern, NC
BoatAnchors appreciated here
http://www.thecompendium.net/radio/
http://www.hammarlund.info

----- Original Message ----- 
From: "Matthew E. McNeely" 
To: 
Sent: Monday, September 20, 2004 11:37 AM
Subject: [drakelist] Tr-4 Low receive update


>
> "Matthew E. McNeely"
 made an
utterence to the drakelist gang
> ----------------------------------------------------------------------
> Thank you for all the advice. I have tried cleaning all of the switches
> including the band switch along with the tube sockets and peaking the
> crystal oscillators 40,15 and 10 meter bands all are running between -.6
> and - .7 vdc. I changed the 6ea8 tubes in the front end and the receive
on
> 15 and 10 seems somewhat better but still not up to snuff. I can hear
the
> crystal calibrator  but it is not giving me much on the s meter. I can
hear
> and make some contacts on 15 but when compared to a general coverage
> receiver (not even a very good one) the s meter readings are much lower
on
> the TR-4.
> What am I missing here? someone wrote that I should peak the band caps
on
> the effected bands. I am not sure where they are can someone tell me
where
> they are? and anything else that might be helpful to repair this
problem?
> I really love this transceiver. I find that whenever I can hear a signal
> with it I can usually work them. I always get great signal reports even
> without using my linear something I can't get with my Icom.
>
> Thank you,
>
> Matt
>
> ----------------------------------------------------------------------
> On Behalf of "Matthew E. McNeely"

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----------------------------------------------------------------------
On Behalf of "Al Parker" 
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Unsubscribe:        majordomo{at}www.zerobeat.net - unsubscribe drakelist in body
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Brought to you courtesy of TLCHost.net  http://www.tlchost.net/
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