Carl, Check the filaments on the finals. They are all three in parallel and drop the 12.6 volts to 6.3 for the remainder of the tubes. The wires to the filaments are small and brittle. Measure the Bias voltage coming out of the power supply- should be at least -65 and you should be able to reduce it to zero. When you go to X-CW you should have 350 volts on the final screens and when you go to ssb the voltage should go to 650 volts. Be Careful !!! Also the sealed transmit /receive relays are known to go bad. If you need one you can order from Mouser in Texas- the manufacturers part number is R10-EIY4-V2.5K. Good Luck, Boyd
Garey Barrell <[EMAIL PROTECTED]> wrote: Garey Barrell made an utterance to the drakelist gang ---------------------------------------------------------------------- Carl - No. No modifications are necessary to use the 6GJ5. Pin 8 is no connection in the 6GJ5, and is the suppressor grid on the 6JB6, which is grounded. You say NO plate current. Do you have bias current? Garey - K4OAH St Charles, IL [EMAIL PROTECTED] wrote: > [EMAIL PROTECTED] writes: > abbreviated excerpt below > > The 6GJ5's will work fine....... Garey - K4OAH > > Hi, TR4 will not tune up...no plate current...have been advised that > 6GJ5's may have to have pin 8 cut off. > Your thoughts. > Carl Hibbard WD8NHK > > > > > > > > ------------------------------------------------------------------------ > See what's new at AOL.com > and Make AOL Your > Homepage . ---------------------------------------------------------------------- Submissions: [EMAIL PROTECTED] Unsubscribe: [EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost: [EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net ----------------------------------------------------------------------
