OK Garey, I must have been on the wrong pin before. The voltages on V7 are all ok and close to where they should be in R & T. I have a scope (Tetronix) and a Freq. counter. I am testing with the bandswitch in the 20m position. On pin 2 of V6 I show a freq of 10.400 mhz when I go to T and when I talk in the mike I can see the SSB signal there. Still, nothing on the other side of V6 tho. No RF there. Terry In a message dated 3/31/2008 4:21:47 P.M. Eastern Daylight Time, [EMAIL PROTECTED] writes:
Garey Barrell <[EMAIL PROTECTED]> made an utterance to the drakelist gang ---------------------------------------------------------------------- OK. That's Version 1. V7 circuit is the same though. Voltage divider on Pin 6, screen of V7, voltage should be ~100V R or T. Likely not the current problem though. Perhaps you were looking at Pin 5? You say you have signal to the grid of V6. Is that ON Pin 2 or ?? Are you looking with a scope or ?? [EMAIL PROTECTED] wrote: > The S/N is 34323. > > In a message dated 3/31/2008 3:53:57 P.M. Eastern Daylight Time, > [EMAIL PROTECTED] writes: > > > Garey Barrell <[EMAIL PROTECTED]> made an utterance to the > drakelist gang > ---------------------------------------------------------------------- > What serial number unit? Pin 6 should have ~100V R or T. > > 73, Garey - K4OAH > Glen Allen, VA > > Drake 2-B, 4-B, C-Line & TR-4/C Service Supplement CDs > <www.k4oah.com> > > > > [EMAIL PROTECTED] wrote: > > On V7, Pin 7 shows 1.13v receive, 148 transmit and pin 6 shows 250v > > receive and transmit. > > > > In a message dated 3/31/2008 3:34:54 P.M. Eastern Daylight Time, > > [EMAIL PROTECTED] writes: > > > > > > Garey Barrell <[EMAIL PROTECTED]> made an utterance to the > > drakelist gang > > > ---------------------------------------------------------------------- > > Have you checked voltages on V7? Is it being cut off in > transmit? > > > > 73, Garey - K4OAH > > Glen Allen, VA > > > > Drake 2-B, 4-B, C-Line & TR-4/C Service Supplement CDs > > <www.k4oah.com> > > > > > > > > [EMAIL PROTECTED] wrote: > > > I am still working on my TR-4C. I now have the filter > problem fixed > > > and in fact have the correct signal going all the way to > the 12BY7 > > > driver tube. I do not have any signal coming out of the driver > > to the > > > finals. The tube is good and I have substituted another > with no > > > change. The voltages all check good on the 12BY7 except > for pin > > 8. It > > > has the full 250 volts on it so no grid current is flowing > > there. What > > > might cause this? Has any one out there run into this problem > > before > > > and maybe could tell me where I should look for the > problem. As > > always > > > any help would be appreciated. Thanks and 73, > > > > > > Terry > > > W8NJR > > > > > > > > > > > ---------------------------------------------------------------------- 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 ---------------------------------------------------------------------- **************Create a Home Theater Like the Pros. Watch the video on AOL Home. (http://home.aol.com/diy/home-improvement-eric-stromer?video=15&ncid=aolhom00030000000001)
