Hello all I apology for the off-topic. However I know that this group is attended by very experienced gents, mainly from the UK. I found these two tubes in the junk, see the attachment. I spent quite
Petr, In the 1960s, STC (Standard Telephones and Cables) was part of ITT (International Telephone and Telegraph Corporation) so the two bottles are probably electrically similar. I never worked in Va
Hello Peter, I expected to find the tube at http://www.tubedata.org/ where Frank Philipse has been collecting tube data sheets for 15 years but it wasn't ... It must be a very exotic tube! 73 Johan S
Hi all this may help with codes but don't trust it this is out the STC designers guide 1947. When I was five..... :o( 73 es GL Pete M0FMT IO91UX -- Forwarded Message -- From: M0FMT <[email protected]
Blyme I'm having fun with this try again Please see attachement below.>>>>>>>>>>>>>>>>>>> Hi all this may help with codes but don't trust it this is out the STC designers guide 1947. When I was five.