Hi Don, All,
Yes, that's probably the reason why I did not want to buy the kits.
It may be even more fun figuring out something like that myself..
;-)
73's,
Henry - PA0HJA
On 2/8/2012 8:04 PM, Don Cunningham wrote:
Henry,
If we saw the schematics, we probably wouldn't pay the price
-Original Message-
From: Henry Vredegoor henry.vredeg...@gmail.com
To: Drakelist Drakelist@zerobeat.net
Sent: Thu, Feb 9, 2012 6:18 am
Subject: Re: [Drakelist] Late R-4C 3rd Mixer Changes
Hi Don, All,
Yes, that's probably the reason why I did not want to buy the kits.
It may be even
, February 09, 2012 11:36 AM
Subject: Re: [Drakelist] Late R-4C 3rd Mixer Changes
While some of the mods may not be that complex...some certainly are.
Considering the quality, components used and all the design work...they
are a bargain. Also, installation is not in all cases a walk in the
park
: Thursday, February 09, 2012 11:36 AM
Subject: Re: [Drakelist] Late R-4C 3rd Mixer Changes
While some of the mods may not be that complex...some certainly are.
Considering the quality, components used and all the design
work...they
are a bargain. Also, installation is not in all cases a walk
73,
Lee
-Original Message-
From: Henry Vredegoor henry.vredeg...@gmail.com
To: Drakelist Drakelist@zerobeat.net
Sent: Thu, Feb 9, 2012 6:18 am
Subject: Re: [Drakelist] Late R-4C 3rd Mixer Changes
Hi Don, All,
Yes, that's probably the reason why I did not want to buy the kits.
It may
of the Drake world
73,
Lee
-Original Message-
From: Henry Vredegoor henry.vredeg...@gmail.com
To: Drakelist Drakelist@zerobeat.net
Sent: Thu, Feb 9, 2012 6:18 am
Subject: Re: [Drakelist] Late R-4C 3rd Mixer Changes
Hi Don, All,
Yes, that's probably the reason why I did not want to buy
: [Drakelist] Late R-4C 3rd Mixer Changes
While some of the mods may not be that complex...some certainly are.
Considering the quality, components used and all the design
work...they
are a bargain. Also, installation is not in all cases a walk in the
park...and will take a lot of time.
The roofing
://www.sherweng.com/ham.html
73,
Lee
-Original Message-
From: Steve Wedge w1es1...@earthlink.net
To: Drake List drakelist@zerobeat.net
Sent: Tue, Feb 7, 2012 8:17 pm
Subject: [Drakelist] Late R-4C 3rd Mixer Changes
Anyone who has had a late-production R-4C has heard the hiss when
listening
Drakelist@zerobeat.net
Sent: Wed, Feb 8, 2012 5:08 am
Subject: Re: [Drakelist] Late R-4C 3rd Mixer Changes
Hi,
Are there any schematics for these modifications somewhere on the net?
(especially the Sherwood mods)
Henry - PA0HJA
On 2/8/2012 6:06 AM, kc9...@aol.com wrote:
Sherwood Engineering
Message-
From: Henry Vredegoor henry.vredeg...@gmail.com
To: Drakelist Drakelist@zerobeat.net
Sent: Wed, Feb 8, 2012 10:08 am
Subject: Re: [Drakelist] Late R-4C 3rd Mixer Changes
Hi Lee,
Yes I know.
But as the circuits of the Sherwood mods seem to be really not too
difficult and critical
Anyone who has had a late-production R-4C has heard the hiss when listening to
a quiet band or a weak signal. Some folks say it sounds like bacon frying
(Yum!) but to me it sounds more like the rain setting of one of those noise
generators they sell at Brookstone that are supposed to put you
Subject: [Drakelist] Late R-4C 3rd Mixer Changes
Anyone who has had a late-production R-4C has heard the hiss when
listening to a quiet band or a weak signal. Some folks say it sounds
like bacon frying (Yum!) but to me it sounds more like the rain
setting of one of those noise generators
I'm working on a decent, late-production R-4C and it has the usual noise from
the 3rd mixer.
I seem to recall a change to the cathode circuit that involved an RF choke -
anyone remember this one?
I found something similar that removes some capacitors and changes the feed
from G1 to the
On Tue, 31 Jan 2012 21:02:25 -0500, Steve Wedge wrote:
I found something similar that removes some capacitors and changes the feed
from G1 to the cathode.
I did this one to mine. Seems to work fine.
73
-Jim
--
Ham Radio NU0C
Lincoln, Nebraska, U.S.S.A.
TR7/RV7/R7A/L7, TR6/RV6,
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