From hugo at optonline.net  Wed May 21 11:49:08 2014
From: hugo at optonline.net (Hugo W. Catta)
Date: Wed, 21 May 2014 11:49:08 -0400
Subject: [HBR] Polar 2102 varable for sale
Message-ID: <537CCAF4.5050307@optonline.net>

Hi Guys,

I have a 2102 for sale $50.00 plus shipping, USA only.
Turns smoothly, used but in perfect working condition.
Pictures on request.

73,
Hugo - AA1XV


From brianburns1066 at gmail.com  Thu May 22 20:13:24 2014
From: brianburns1066 at gmail.com (Brian Burns)
Date: Thu, 22 May 2014 17:13:24 -0700
Subject: [HBR] Regenerodyne experience?
Message-ID: <CAMNk5SrBoZPGR7dKBgCKAUX4vpi=ceqAsCWNDTjpBiDCM+NU5w@mail.gmail.com>

Hello All,



In looking for a simple ham station receiver design, I keep coming back to
the Gary WD4NKA "Regenerodyne". I'm wondering if anyone on the HBR list has
had any experience using one of these as the station receiver. It really
does get around the problem of finding I.F. transformers!

Cheers,

Brian Burns    Ex: W5BRO, K6UCD



See my website: http://www.lessonsinlutherie.com

From hbr at mailman.qth.net  Thu May 22 16:36:56 2014
From: hbr at mailman.qth.net (Brian Burns via HBR)
Date: Thu, 22 May 2014 13:36:56 -0700 (PDT)
Subject: [HBR] Regenerodyne experience?
Message-ID: <1400791016.68469.YahooMailNeo@web164703.mail.gq1.yahoo.com>

Hello All,
In looking for a simple ham station receiver design, I keep coming back to the Gary WD4NKA "Regenerodyne". I'm wondering if anyone on the HBR list has had any experience using one of these as the station receiver. It really does get around the problem of finding I.F. transformers! 

Cheers,

Brian Burns??? Ex: W5BRO, K6UCD

?
See my website:  http://www.lessonsinlutherie.com

From brian at lessonsinlutherie.com  Thu May 22 17:23:02 2014
From: brian at lessonsinlutherie.com (Brian Burns)
Date: Thu, 22 May 2014 14:23:02 -0700
Subject: [HBR] Regenerodyne experience?
Message-ID: <!&!AAAAAAAAAAAYAAAAAAAAAO9WiXwKTRJMveKqmcXf97/CgAAAEAAAACcjwY9951lJtocBZFZqH2QBAAAAAA==@lessonsinlutherie.com>

Hello All,

 

In looking for a simple ham station receiver design, I keep coming back to
the Gary WD4NKA "Regenerodyne". I'm wondering if anyone on the HBR list has
had any experience using one of these as the station receiver. It really
does get around the problem of finding I.F. transformers! 

Cheers,

Brian Burns    Ex: W5BRO, K6UCD

 

See my website: http://www.lessonsinlutherie.com

 

 



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From ke9xq at charter.net  Fri May 23 12:00:18 2014
From: ke9xq at charter.net (William Wood)
Date: Fri, 23 May 2014 11:00:18 -0500
Subject: [HBR] Regenodyne circuits
Message-ID: <FA3B7D6C-5321-4BEC-9FEC-16C5BACBB32C@charter.net>

Hey Greetings Brian and Group
   I?ve not had much experience with these,
except for cheap kits years ago.  I saw your post
several times now, but no responses so far, I wondered
if you were familiar with the Regenx group, there,
they specialize in your and related circuitry.
   Hopefully these gents will send you off in the right direction.
Nothing against that topic, I just think these guys are
the ?cat?s meow? when it comes to your goal.  As for
me, I?m still looking for a couple of iFs : )
73
Bill  KE9XQ
PS Here?s their URL

regenrx at yahoogroups.com

From ke9xq at charter.net  Fri May 23 12:02:59 2014
From: ke9xq at charter.net (William Wood)
Date: Fri, 23 May 2014 11:02:59 -0500
Subject: [HBR] Regenodyne circuits
Message-ID: <B16FEC82-0C73-4FBA-ABD5-E3EF8C281CD4@charter.net>

Hey Greetings Brian and Group
   I?ve not had much experience with these,
except for cheap kits years ago.  I saw your post
several times now, but no responses so far, I wondered
if you were familiar with the Regenx group, there,
they specialize in your and related circuitry.
   Hopefully these gents will send you off in the right direction.
Nothing against that topic, I just think these guys are
the ?cat?s meow? when it comes to your goal.  As for
me, I?m still looking for a couple of iFs : )
73
Bill  KE9XQ
PS Here?s their URL

regenrx at yahoogroups.com

From brianburns1066 at gmail.com  Fri May 23 12:30:01 2014
From: brianburns1066 at gmail.com (Brian Burns)
Date: Fri, 23 May 2014 09:30:01 -0700
Subject: [HBR] Sorry for multiple postings
In-Reply-To: <B16FEC82-0C73-4FBA-ABD5-E3EF8C281CD4@charter.net>
References: <B16FEC82-0C73-4FBA-ABD5-E3EF8C281CD4@charter.net>
Message-ID: <!&!AAAAAAAAAAAYAAAAAAAAAO9WiXwKTRJMveKqmcXf97/CgAAAEAAAABzurWwshpZBvjHGtnmmTQ8BAAAAAA==@gmail.com>

Hello Bill,

I'm sorry for the multiple postings---I have too many email addresses. Kees
has straightened it out for me, so it shouldn't happen again.

~ I've not had much experience with these, except for cheap kits years ago.
I saw your post several times now, but no responses so far, I wondered if
you were familiar with the Regenx group, there, they specialize in your and
related circuitry.

Yes, I've been on the regenrx list for a couple of years now. There are some
good threads there, but the hams seem to be mostly interested in
experimenting and building, so I haven't had any luck getting information on
how the various designs actually perform as station receivers.
   
~ As for me, I'm still looking for a couple of iFs : )

Ain't that the truth! Back in the day (I'm 74) you could order up most
anything, though it took a long time for it to arrive.

The "regenerodyne" design has one so called I.F. transformer that you wind
yourself. My main reservation about the design is selectivity in the
presence of strong adjacent signals. It is after all a regen with a crystal
controlled converter--no place to stick a crystal filter.

Cheers,

Brian


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From mmab at cox.net  Fri May 23 14:53:11 2014
From: mmab at cox.net (Michael A. Bittner)
Date: Fri, 23 May 2014 11:53:11 -0700
Subject: [HBR] Sorry for multiple postings
References: <B16FEC82-0C73-4FBA-ABD5-E3EF8C281CD4@charter.net>
	<5UWD1o01245oxQM01UWGLf>
Message-ID: <6F9150D0BF224D3098BD1358C0EBCF22@pcb5f47b1b5375>

I have many IFs ready for sale.  I usually put them on eBay, but tell me exactly what you need and maybe we can work out something.
Mike, W6MAB
-
  ----- Original Message ----- 
  From: Brian Burns 
  To: 'HBR Receiver List' 
  Sent: Friday, May 23, 2014 9:30 AM
  Subject: [HBR] Sorry for multiple postings


  Hello Bill,

  I'm sorry for the multiple postings---I have too many email addresses. Kees
  has straightened it out for me, so it shouldn't happen again.

  ~ I've not had much experience with these, except for cheap kits years ago.
  I saw your post several times now, but no responses so far, I wondered if
  you were familiar with the Regenx group, there, they specialize in your and
  related circuitry.

  Yes, I've been on the regenrx list for a couple of years now. There are some
  good threads there, but the hams seem to be mostly interested in
  experimenting and building, so I haven't had any luck getting information on
  how the various designs actually perform as station receivers.
     
  ~ As for me, I'm still looking for a couple of iFs : )

  Ain't that the truth! Back in the day (I'm 74) you could order up most
  anything, though it took a long time for it to arrive.

  The "regenerodyne" design has one so called I.F. transformer that you wind
  yourself. My main reservation about the design is selectivity in the
  presence of strong adjacent signals. It is after all a regen with a crystal
  controlled converter--no place to stick a crystal filter.

  Cheers,

  Brian


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From hbr at mailman.qth.net  Tue May 27 17:35:41 2014
From: hbr at mailman.qth.net (Ron Barlow via HBR)
Date: Tue, 27 May 2014 14:35:41 -0700 (PDT)
Subject: [HBR] Sorry for multiple postings
Message-ID: <1401226541.16261.YahooMailBasic@web160106.mail.bf1.yahoo.com>

Hi Brian,

 By using a variation on the "regenerodyne" design, one CAN use a selective bandpass filter, in front of the regenerative (2nd) detector.

 This alternate scheme uses a tunable oscillator in the frequency conversion (1st detector) stage. The regenerative 2nd detector stage operates on a fixed frequency.

 AFAIK, the original fixed IF frequency "super gainer" scheme was innovated by Frank Jones, W6AJF, in the 30s. It used regeneration in both the 1st and 2nd detector stages. The 2nd detector was of the autodyne type.
 
 Later, the ARRL handbook contained info on a basically similar design (Simple-X Super, I believe it was called).
 In addition to using more modern, higher gain tubes, the ARRL design used a non regenerative 1st detector. The regeneration level of the 2nd detector was adjustable, but intended to be pre-set, and left alone, afterward. A separate BFO oscillator was used, instead of an autodyne detector.

 IMO, this configuration would allow one to avoid a problem with the BFO frequency tending to be pulled in frequency (or being locked at the frequency) of the high Q bandpass filter, that would very probably occur, with the autodyne configuration.
 Thus, the Simple-X Super type design would permit the user to achieve true "single signal" capability, by offsetting the BFO frequency from the bandpass filter frequency.

 My experiences with a straight regen receiver, would suggest that the variable frequency of the 2nd detector, in the regenerodyne, would require some readjustment of the regeneration control, when QSYing, and/or when dealing with varying signal strengths.
 Thus, I suspect that the Simple-X version would be less of a handful to operate, than the regenerodyne.
 Some of us may enjoy or at least be willing to tolerate a receiver that requires the manipulation of multiple controls, while tuning around the band, but others may be less receptive to this challenge.

 I have recently begun construction of a 3 tube superhet, but construction has been put on the shelf, for now, for various reasons.
 I find these bare bones receivers to be very interesting, and I wish you GL with whatever design you decide to construct.
 I hope to read about your results, in the future. 

? ? ? ? ? ? ? ? ? ???GL & 73 de Ron? n4gjv
? 
--------------------------------------------
On Fri, 5/23/14, Brian Burns <brianburns1066 at gmail.com> wrote:

 Subject: [HBR] Sorry for multiple postings
 To: "'HBR Receiver List'" <hbr at mailman.qth.net>
 Date: Friday, May 23, 2014, 9:30 AM
 
 Hello Bill,
 
 I'm sorry for the multiple postings---I have too many email
 addresses. Kees
 has straightened it out for me, so it shouldn't happen
 again.
 
 ~ I've not had much experience with these, except for cheap
 kits years ago.
 I saw your post several times now, but no responses so far,
 I wondered if
 you were familiar with the Regenx group, there, they
 specialize in your and
 related circuitry.
 
 Yes, I've been on the regenrx list for a couple of years
 now. There are some
 good threads there, but the hams seem to be mostly
 interested in
 experimenting and building, so I haven't had any luck
 getting information on
 how the various designs actually perform as station
 receivers.
 ???
 ~ As for me, I'm still looking for a couple of iFs : )
 
 Ain't that the truth! Back in the day (I'm 74) you could
 order up most
 anything, though it took a long time for it to arrive.
 
 The "regenerodyne" design has one so called I.F. transformer
 that you wind
 yourself. My main reservation about the design is
 selectivity in the
 presence of strong adjacent signals. It is after all a regen
 with a crystal
 controlled converter--no place to stick a crystal filter.
 
 Cheers,
 
 Brian

From wrcromwell at gmail.com  Tue May 27 17:54:44 2014
From: wrcromwell at gmail.com (Bill Cromwell)
Date: Tue, 27 May 2014 17:54:44 -0400
Subject: [HBR] Sorry for multiple postings
In-Reply-To: <1401226541.16261.YahooMailBasic@web160106.mail.bf1.yahoo.com>
References: <1401226541.16261.YahooMailBasic@web160106.mail.bf1.yahoo.com>
Message-ID: <538509A4.7060505@gmail.com>

On 05/27/2014 05:35 PM, Ron Barlow via HBR wrote:
> Hi Brian,
>
>   By using a variation on the "regenerodyne" design, one CAN use a selective bandpass filter, in front of the regenerative (2nd) detector.
>
>   This alternate scheme uses a tunable oscillator in the frequency conversion (1st detector) stage. The regenerative 2nd detector stage operates on a fixed frequency.
>
>   AFAIK, the original fixed IF frequency "super gainer" scheme was innovated by Frank Jones, W6AJF, in the 30s. It used regeneration in both the 1st and 2nd detector stages. The 2nd detector was of the autodyne type.
>   
>
Hi,

You have directly touched on the primary distinction between the 'super 
gainer' and the 'regenerodye'. The super gainer type has the VFO out 
front at the converter with fixed frequency regen detector. The 
regenerodyne has the fixed frequncy oscillator at the front end and 
variable frequency regen detector. The primary advantage of the super 
gainer is the possible use of xtal or other filters between the mixer 
and the detector along with a BFO and it's single signal reception. The 
primary advantage of the regenerodyne is the dial reads the same for all 
bands by default - no special effort is required to "track" the dial.

73,

Bill  KU8H

