[DCboatanchors] RE: Vacuum Tube Regen AM Radio Kit from Japan

Brian Carling bcarling at cfl.rr.com
Fri Sep 8 06:13:50 EDT 2006


That looks really cool Lee. I wonder what tubes he uses in the 
4 stage regen? Possibly something like 1S4, 1T4, 1R5 since 
they only use 90V from three PP3 batteries. I wonder
though, if the batteries would be used up rapidly.
That adds a lot to the expense at about $20-30 a set!
Of course we could MODEL the tube sound with solid 
state and produce the whole thing for under $2000.
It seems like $109.00 is not too bad for 
such a kit when you consider they have to come up 
with things like an output transformer, speaker etc.
Some of us have often wondered if there might be 
a good market for such kits. 

Thanks for pointing out that web site.

Bry

> Hey Bry,
> 
> Try this on for a regen kit 
> 
> http://www.vcomp.co.uk/radiokits/radiokit.htm 
> 
> from 1 to 4 'valves' 
> 
> Lee N4MVL
> 
> 
> --- Brian Carling <bcarling at cfl.rr.com> wrote:
> 
> > This description of a REGEN kind opf makes me
> > cringe, 
> > but maybe someone will enjoy it:
> > 
> > Bry
> > 
> > ------- Forwarded message follows -------
> > 
> > FROM: Tom Curtola:
> > 
> > The link below is a "youtube" video of "toy" regen
> > assembly.  The 
> > audio on the video is taken from the radio.
> > 
> > http://www.youtube.com/watch?v=fmVC6HqEWYY
> > 
> > I ordered this little toy vacuum tube radio kit from
> > a company in 
> > Japan that makes all kinds of neat hobby kits,
> > science and radio 
> > kits etc.  (www.hlj.com)
> > 
> > It went together in no time, as it's aimed at
> > non-electronic types. 
> >   Basically just plastic chassis with a regenerative
> > circuit board 
> > with all the components already soldered.  The
> > builder merely snaps 
> > together the parts, screw them tight and winds the
> > antenna loop.
> > 
> > I think it's a great little kit for someone to make
> > with his child 
> > or grandchild.
> > 
> > It actually works quite well in the AM broadcast
> > band.  There was 
> > some room left on the loop frame for some more
> > windings, so I 
> > experimented with different turn-counts and settle
> > for the 160m 
> > band, in addition to the AM broadcast band.
> > 
> > This radio now has 160m ham and 120m Shortwave
> > Broadcast.  Though 
> > the 160m band is not very stable, I am able to copy
> > W1AW but the 
> > radio drifts too much to copy SSB.
> > 
> > The shortwave broadcasts come through very nicely on
> > the 120m band.
> > 
> > The link below will take you to my "youtube" video
> > of the assembly 
> > and demonstration of the radio's audio.
> > 
> > http://www.youtube.com/watch?v=fmVC6HqEWYY
> > 
> > 73,
> > 
> > Tom
> > VA3TY
> > 
> > PS: for those not familiar, 'youtube.com' is a site
> > dedicated to the 
> > public that want to post videos.  Do a search on the
> > site for 
> > various radio stuff and you'll be treated to many
> > videos of hams who 
> > have posted videos of their DXpeditions, or stations
> > etc.,
> > 
> > (FROM the GLOWBUGS list.)
> > 
> > ------- End of forwarded message -------
> > 
> 
> 
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