[Premium-Rx] TR7 and The "Sound" Of Receiver IF Amplifiers

[Carcia, Frank A. HS]

    I just had a phone call from a friend who modified the TR7 audio. He is
sending the modifications and I will share it
    when it comes in. He said a good speaker helps a lot. There are a few
cap values to be increased. Today's better form factor allows larger values
to be installed in the same positions. I pointed out the output cap may
serve as a current limiter
for the DIP audio amplifier so it will be like a nickel in the fuse box
trick.  fc

-----Original Message-----
From: John Wilson [mailto:johnwilson at freezone.co.uk]
Sent: Friday, October 10, 2003 12:17 PM
To: Ka9p at aol.com
Cc: premium
Subject: RE: [Premium-Rx] TR7 and The "Sound" Of Receiver IF Amplifiers


Hey, that's a really nice endorsement of my baby, the HF-150. John Thorpe
and I tried to make recovered audio fidelity one of the key features in all
those receivers, and here you are telling me that it was all worth while.
73
John
G3PCY/5N2AAC

-----Original Message-----
From: premium-rx-bounces at ml.skirrow.org
[mailto:premium-rx-bounces at ml.skirrow.org]On Behalf Of Ka9p at aol.com
Sent: 10 October 2003 02:10
To: premium-rx at ml.skirrow.org
Subject: Re: [Premium-Rx] TR7 and The "Sound" Of Receiver IF Amplifiers


There is of course the infamous "synchophase" detector on the R-7 which was
touted in their advertising as a hi-fi /narrow bandwidth AM option when the
4 khz filter was installed.
 
I was never impressed with the R-7 in side by sides with the TR-7 on AM or
SSB, but remain fond of and impressed with both.  Being a cheap Scotsman, I
still find a $250-300 loaded up TR-7 with a bad final a great route to a
relatively inexpensive quality receiver.  And aside from the hiss, SSB
sounds pretty darn good through that 4khz filter.  Wish I'd kept a few.
 
But I'll nominate the WJ 8718 as the best sounding SSB receiver in my shack
(maybe that doesn't say much about the shack - a Lowe HF-150 finishes a
close second.)
 
Scott

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