looking at the video and pictures the only things I see done are:
- grid capacitors/chokes removed
- voltage stabilizer (?) added
Here are closeups from Italian website:
http://www.italyamplifier.com/Portals/0/tl922_1.jpg
http://www.italyamplifier.com/Portals/0/tl922._2.jpg
<http://www.italyamplifier.com/Portals/0/tl922_1.jpg>
http://www.italyamplifier.com/Portals/0/tl922_3.jpg
<http://www.italyamplifier.com/Portals/0/tl922_3.jpg>
http://www.italyamplifier.com/Portals/0/tl922_4.jpg
On Wed, Jan 26, 2011 at 12:17 PM, Dave M <slash_dot@msn.com> wrote:
> The conversion of comercial amps to the russian triode is fairly well
> documented on the net ,there a few extras that need to be addressed like a
> new bias board and the additition of a 12.6v @5A filament transformer and of
> course cooling...... I am curious however why the gent has changed the
> supior GI46 heatsink with 2 from the GI7B tubes , this makes absolutly no
> sense to me
>
>
> ......................................................................................................
>
> 73 VE3DV , Dave
>
>
>
>
>
>
> > Date: Wed, 26 Jan 2011 11:38:29 -0500
> > From: alex.k2bb@gmail.com
> > To: amps@contesting.com
> > Subject: [Amps] GI-46B in TL-922
>
> >
> > Hello everybody,
> > I have a TL-922 amplifier and one of 3-500 tubes died - it is widely open
> > now.
> > Another one is still good and amp produces 400-500W out.
> >
> > Friend of mine gave me a link to youtube video with a slide show of
> TL-922
> > converted to work with Russian GI-46B tubes.
> > His point was that the tubes are much cheaper than 3-500's...
> >
> > Here are the videos:
> > http://www.youtube.com/watch?v=FbNgQT_k80s
> > http://www.youtube.com/watch?v=_J7nlw9If1Q
> >
> > What do you think of it?
> > Is it something "even a caveman can do" or "forget about it"?
> >
> > One thing concerns me - none of those conversion use anode blower, they
> rely
> > on original TL922's fan.
> > I also was not able to find any schematic for the conversion itself, only
> > the videos...
> >
> > thanks,
> > Alex K2BB
> > _______________________________________________
> > Amps mailing list
> > Amps@contesting.com
> > http://lists.contesting.com/mailman/listinfo/amps
>
>
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