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Sci.Electronics.Basics -> Regen Radio Ideas Needed
There are 25 messages in this thread.
You are currently looking at messages 20 to 25.
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Author: Dave.HDate: 07:08 14-03-08
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On Mar 14, 8:53 pm, "Dave.H" <the19...@googlemail.com> wrote:
> On Mar 13, 6:43 pm, "Dave.H" <the19...@googlemail.com> wrote:
>
> > I've been looking on the internet for regenerative radio plans, but
> > haven't found any I like. I was hoping someone here could help. I
> > want to build from scratch, no kits. I would prefer one with 1 or 2
> > tubes, preferably octal based or earlier, but miniature acceptable. B+
> > is to be no more than 45 volts, which is the usual from what I've
> > seen. I also don't want one that requires litz wire for the coils,
> > pretty much impossible to get for me.
>
> > Thanks for your help.
>
> > Dave
>
> I'm buying a one tube regen from Dave Schmarder. I don't get to build
> it, but I fell in love with it as soon as I saw it, I couldn't resist.
> It's using a #30 tube. Gotta love the shape of those
things!http://www.schmarder.com/radios/tube/1-30.htm
I'm planning to use egular Hi-Fi headphones with the set, would a 1k-8
ohm audio transfomrer work?
Cat # M0216 @ www.dse.com.au
Also how would I wire the audio output up so the mono sound comes
through both sides of the headphones?
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Author: Mike SilvaDate: 11:04 14-03-08
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On Mar 14, 5:53=A0am, "Dave.H" <the19...@googlemail.com> wrote:
> On Mar 13, 6:43 pm, "Dave.H" <the19...@googlemail.com> wrote:
>
> > I've been looking on the internet for regenerative radio plans, but
> > haven't found any I like. =A0I was hoping someone here could help. =A0I
> > want to build from scratch, no kits. I would prefer one with 1 or 2
> > tubes, preferably octal based or earlier, but miniature acceptable. B+
> > is to be no more than 45 volts, which is the usual from what I've
> > seen. I also don't want one that requires litz wire for the coils,
> > pretty much impossible to get for me.
>
> > Thanks for your help.
>
> > Dave
>
> I'm buying a one tube regen from Dave Schmarder. I don't get to build
> it, but I fell in love with it as soon as I saw it, I couldn't resist.
> It's using a #30 tube. =A0Gotta love the shape of those things!http://www.=
schmarder.com/radios/tube/1-30.htm
Just keep in mind that you may be disappointed at the audio level from
this. Part of the reason for this is the fact that most modern
headphones are designed for good fidelity over high sensitivity. If
lack of volume turns out to be a problem, just add an audio stage
(another #30 would do nicely).
Mike
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Author: Dave.HDate: 11:08 14-03-08
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On Mar 15, 2:04 am, Mike Silva <snarflem...@yahoo.com> wrote:
> On Mar 14, 5:53 am, "Dave.H" <the19...@googlemail.com> wrote:
>
>
>
> > On Mar 13, 6:43 pm, "Dave.H" <the19...@googlemail.com> wrote:
>
> > > I've been looking on the internet for regenerative radio plans, but
> > > haven't found any I like. I was hoping someone here could help. I
> > > want to build from scratch, no kits. I would prefer one with 1 or 2
> > > tubes, preferably octal based or earlier, but miniature acceptable. B+
> > > is to be no more than 45 volts, which is the usual from what I've
> > > seen. I also don't want one that requires litz wire for the coils,
> > > pretty much impossible to get for me.
>
> > > Thanks for your help.
>
> > > Dave
>
> > I'm buying a one tube regen from Dave Schmarder. I don't get to build
> > it, but I fell in love with it as soon as I saw it, I couldn't resist.
> > It's using a #30 tube. Gotta love the shape of those
things!http://www.schmarder.com/radios/tube/1-30.htm
>
> Just keep in mind that you may be disappointed at the audio level from
> this. Part of the reason for this is the fact that most modern
> headphones are designed for good fidelity over high sensitivity. If
> lack of volume turns out to be a problem, just add an audio stage
> (another #30 would do nicely).
>
> Mike
Thanks, how would I add this audio stage? A diagram would help.
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Author: Mike SilvaDate: 11:19 14-03-08
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On Mar 14, 11:08=A0am, "Dave.H" <the19...@googlemail.com> wrote:
> On Mar 15, 2:04 am, Mike Silva <snarflem...@yahoo.com> wrote:
>
>
>
>
>
> > On Mar 14, 5:53 am, "Dave.H" <the19...@googlemail.com> wrote:
>
> > > On Mar 13, 6:43 pm, "Dave.H" <the19...@googlemail.com>
wrote:
>
> > > > I've been looking on the internet for regenerative radio plans, but
> > > > haven't found any I like. =A0I was hoping someone here could help. =
=A0I
> > > > want to build from scratch, no kits. I would prefer one with 1 or 2
> > > > tubes, preferably octal based or earlier, but miniature acceptable.
=
B+
> > > > is to be no more than 45 volts, which is the usual from what I've
> > > > seen. I also don't want one that requires litz wire for the coils,
> > > > pretty much impossible to get for me.
>
> > > > Thanks for your help.
>
> > > > Dave
>
> > > I'm buying a one tube regen from Dave Schmarder. I don't get to build
> > > it, but I fell in love with it as soon as I saw it, I couldn't resist.=
> > > It's using a #30 tube. =A0Gotta love the shape of those things!http://=
www.schmarder.com/radios/tube/1-30.htm
>
> > Just keep in mind that you may be disappointed at the audio level from
> > this. =A0Part of the reason for this is the fact that most modern
> > headphones are designed for good fidelity over high sensitivity. =A0If
> > lack of volume turns out to be a problem, just add an audio stage
> > (another #30 would do nicely).
>
> > Mike
>
> Thanks, how would I add this audio stage? A diagram would help.- Hide quot=
ed text -
>
> - Show quoted text -
Search for Doerle Regen, that was a popular 2-tube regen typically
using #30 tubes. Here's one diagram I found:
http://www.philcorepairbench.com/doerle.htm
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Author: ArchimedesDate: 00:58 30-03-08
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Hi Michael
Thanks for the lovely explanation - well for a beginning project i was
so excited I could hear ATC in my local area - I am in the process of
building another one for my brother so he too can listen to ATC.
With the super-regen - as the voltage drops from the source, will the
resonant frequency begin to shift?
Say if it goes from 10 to 8 volts. I am using a MPF102.
Regards
Shelton.
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