Does anyone have the base pinout for a 3BP1 scope CRT?, I want to put it into my pilot and none of my tube manuals list the basing for this tube.<BR>I have the socket for this tube "14 pin", and I will make an adaptor to plug into the "11" pin 3KP4 socket, this way I can put it back to origional if I ever get a 3KP4.<BR>Thanks for any information you may have.<P>Bill<BR> <P>------------------<BR>

Hi, Bill,<P>My 1962 Radio Amateurs Handbook lists the 3BP1A base as 14G:<P>1 = H<BR>2 = K<BR>3 = G<BR>4 = IC<BR>5 = A1<BR>6 = N/C<BR>7 = D3<BR>8 = D4<BR>9 = A2<BR>10 = D2<BR>11 = D1<BR>12 = N/C<BR>13 = N/C<BR>14 = H<P>As a designator reference, it lists the 3KP4 as base 11M:<P>1 = H<BR>2 = G<BR>3 = K<BR>4 = A1<BR>5 = D3<BR>6 = D4<BR>7 = A2/G2<BR>8 = D2<BR>9 = D1<BR>10 = N/C<BR>11 = H<P>Good luck with the swap!<P>Dean<BR><P>------------------<BR>

Thanks Dean,<BR>Never thought of looking in the handbook, I will make the adaptor this weekend.<BR>Thanks again.<P>Bill<BR><P>------------------<BR>

I recently put a 3KP11 in a Pilot TV and it seemed to work well. This tube has a bluish white phosphor and the color is a much closer match to the P4 white phosphor than the green P1 phosphor. There is also a P7 phosphor version with an orange screen. The after glow (persistance) would probably be much nore noticable with the P7 type and cause a smeary picture, though. Has anyone else tried the P11 tube? <P>------------------<BR>