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yo9fzs asked:
What russian tube is the QB5/1750 equivalent (or what russian tube did
> you use instead of the QB5/1750)? It is the GU46?
>
>
Traian,
The tube is the SRS457, it is exactly the same tube as the QB5/1750.
It might be possible that it was first build in ex DDR.
73 de Peter, DF3KV
>
>
>
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<HTML><FONT FACE=arial,helvetica><FONT SIZE=2>
<BR>
<BR>
<BR>yo9fzs asked:</FONT><FONT COLOR="#000000" SIZE=3 FAMILY="SANSSERIF"
FACE="Arial" LANG="2">
<BR>
<BR></FONT><FONT COLOR="#000000" SIZE=2 FAMILY="SANSSERIF" FACE="Arial"
LANG="2">What russian tube is the QB5/1750 equivalent (or what russian tube did
<BR></FONT><FONT COLOR="#000000" SIZE=3 FAMILY="SANSSERIF" FACE="Arial"
LANG="2">
<BR></FONT><FONT COLOR="#000000" SIZE=2 FAMILY="SANSSERIF" FACE="Arial"
LANG="2"><BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid;
MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">you use instead of the
QB5/1750)? It is the GU46?
<BR>
<BR></FONT><FONT COLOR="#000000" SIZE=3 FAMILY="SANSSERIF" FACE="Arial"
LANG="2"></BLOCKQUOTE>
<BR></FONT><FONT COLOR="#000000" SIZE=2 FAMILY="SANSSERIF" FACE="Arial"
LANG="2">Traian,
<BR></FONT><FONT COLOR="#000000" SIZE=3 FAMILY="SANSSERIF" FACE="Arial"
LANG="2">
<BR></FONT><FONT COLOR="#000000" SIZE=2 FAMILY="SANSSERIF" FACE="Arial"
LANG="2">The tube is the SRS457, it is exactly the same tube as the QB5/1750.
<BR>It might be possible that it was first build in ex DDR.
<BR>
<BR>73 de Peter, DF3KV
<BR></FONT><FONT COLOR="#000000" SIZE=3 FAMILY="SANSSERIF" FACE="Arial"
LANG="2">
<BR></FONT><FONT COLOR="#000000" SIZE=2 FAMILY="SANSSERIF" FACE="Arial"
LANG="2"><BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid;
MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">
<BR>
<BR></FONT><FONT COLOR="#000000" SIZE=3 FAMILY="SANSSERIF" FACE="Arial"
LANG="2"></BLOCKQUOTE>
<BR></FONT><FONT COLOR="#000000" SIZE=2 FAMILY="SANSSERIF" FACE="Arial"
LANG="2">
<BR></FONT></HTML>
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