Re: [regenrx] Re: 3A5 6 meter transceiver
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----- Original Message -----
From: "ewcheeguan" <tru168@...>
Sent: Monday, September 29, 2008 6:11 AM
Subject: [regenrx] Re: 3A5 6 meter transceiver
I can read quite a bit japanese language....here's the
link about the 3A5 transceiver:
Well, the first two are the same basic design that has been
around since the 1930s, but they will only talk to another
superregen transceiver, due to transmitter instability. The
third link solves this with crystal controlled transmit, so can
be used in communication with modern AM equipment. I think
it's quite a clever circuit and i am thinking about how to
implement it into some old-ancient equipment i have. The
problem of course is finding 3rd overtone crystals for 10 or
6 meter hambands. For CB there are still lots of crystals around.
I note that in this third link's circuit, the transmit gridleak 22k
resistor when the set is not transmitting, only receiving, draws
an unnecessary additional 3 mA from the 63 volt battery stack.
Looking at the circuit, where the "T" letter is at the top of the 22k
resistor, i would put a capacitor of a couple hundred pF just to
the left of this junction, going to the crystal and T/R switch, so
there's no DC path to ground for the B+ thru this path.
-Hue Miller K7HUE / Newport, Oregon USA
- View SourceThe Lafayette HE-35 6 meter Transceiver, early 1960's, $60.00 new, used 3rd
overtone crystals if this info is useful to anyone.
I think there was another company (Allied?) that made a Lincoln something,
that was the same thing?
My homebrew 6M modulated (ahhemm) oscillator walkie talkie, with a little 9
volt battery, worked ok with those crystals too.
Used a Super Regen tunable Rcvr. All transistors.
- View SourceHi Ew,
Long time no see, I just realize you in this groups.. Nice to meet you here..
To: email@example.comFrom: tru168@...: Mon, 29 Sep 2008 13:11:07 +0000Subject: [regenrx] Re: 3A5 6 meter transceiver
Hi all,I can read quite a bit japanese language....here's the link about the3A5 transceiver:http://www5a.biglobe.ne.jp/~jh2clv/wlmic&trcv.htmhttp://radiokobo.sakura.ne.jp/G/circuits/TRX/3A5-50-1.htmlhttp://www.asahi-net.or.jp/~hp6y-isym/3A5TC.htmlook at those masterpiece! I remember there are original scan file from 1960 magazine withphotos , but I can't find it now .regards,9w2ecgwww.myjunkpage.com
[Non-text portions of this message have been removed]
- View SourceHi Ch'NG,
Yeah, long time no see, ;-)
any regen radio to share ?
--- In firstname.lastname@example.org, CH'NG GS <IssaNagasawa@...> wrote:
> Hi Ew,
> Long time no see, I just realize you in this groups.. Nice to meet you here..
> GS CH'NG,