>Thanks for dope Rich -
ur welcome.
>very interesting. And Svetlana was the light of
>Stalin then?
During the Stalin era, the electric lamp was allegedly invented by a
Russky.
>
>Regarding the 2K3 and 3-500Z I have asked about this before on this net. I
>have the PHILIPS YD 1130 made at the same time as the first graphite EIMAC
>3-500Z used in the SB 220 of 1968-69. The anodes of my YD 1130 look exactly
>the same as the old EIMAC graphite anodes in this 2K3 and have 5 bulges.
>Maybe the PHILIPS tubes are slightly taller.
>
>The YD 1130 PHILIPS data sheet of 1966 is almost the same as EIMAC 3-400Z of
>1965. So, you are right Rich. Are the present 3-500ZG made in France (?)
The Amperex 3-500Z/8008s and 8163s are made in France.
>YD1130 of around 1965-70? Is then the present 3-500ZG in fact a 3-400Z not a
>3-500Z?
>
>What burn-in time is recommended for the YD 1130 an old unused tube.
>
I give them about 1-second. If there's a leaky seal, the air is not
going to go away.
cheers, Hans........
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