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I put the buffer in. It works great. I noticed the frequency was unstable on the frequency counter when i keyed. so, i reduced the buffer power by about a third and it became stable again. i am still fiddling with it im not sure where the ground lug is but here is a picture of what things look...

i noticed the bottom of the lid above the audio tube v603 is turning dark i was using the tall russian tube that gets closer to the lid. i found a short 6L6 to put there and it sounds better.

Now that i have the receive on again. i have noticed the r427 power calibration is not working I have cleaned it but it goes off and on. so, i ordered the 2,5 meg ohm. trim pot from Barketts. I also bought two 6gh8 tubes. to put in v602 and v401 for the meter. This radio uses 5 of these. so...

So far its receiving fine. I kept it running all day I noticed after removing the r402 the old resistor did not show any measurement, and it had cracks and a tiny hole in it. the cracks were hard to see, they were around the resistor where the edge of the stripes are. its hard to get a good...

I noticed some trams have two black square filters. and some have yellow round filters. and some have a combination of both im thinking of changing them out but I am hoping that r402 and t302 was the main causes of the receive problems i was having. also cleaning made a really big difference...

thanks for the info. The Tram receiver finally went out completely. it crackled then silence I checked the 5.8 mhz its there and steady. so, i checked the the tube voltages again. i found v400 pin 6 was not reading any voltage. it should be about 109v. I checked r402 a 47k resistor. and it had...

That sounds like a nice gadget to check for a signal. i will check the signal again. it rarely fades anymore. when it does i pull the v400 tube and put it back in to restart it. i may replace the v400 tube socket. i am going to clean the sockets and controls again to be sure that nasty stuff...

Everything is working good except for the noise blanker even the limiter works the receive is slow to start up when i first turn it on when it warms up it receives good. I only have a problem at first startup right now.

im not ignoring your advice on socket replacement I do not want to change out sockets if i can avoid it this tram has very thin traces. much thinner than the other two trams i had alot of trouble when i replaced the all the old caps and resistors i want to find out for sure what is wrong so i m...

the trams rec. is improving it works most of the time the radio will lose rec but it is still faint most of the time when it goes. i probed around v400 when i probe r400 i get a reading of .310. when i lose rec it reads .410. The rec eventually returns when i keep touching the r400 or v400 pin...

Thank You so much Nomadradio. I have not been sure on how to adjust plate and load until now Thanks

I noticed the swing on ch 1 is about 2 watts with a dead key of 4 watts the swing and dead key slowly increases with each channel. on channel 20 it is 6 watts dead key and a 6 watt swing. I checked the modulation it is about 75% on channel 1 and over %100 on channel 20

Thank You, Nomadradio. That sounds like a good socket replacement. The foil on this tram is really thin and fragile. I cleaned the mode switch again because i noticed it was not smooth, and when i turned it slowely to the right and back the radio rec. came back to life. I cleaned it really good...

i was studying the block diagram and found the rec. audio goes thru v602 and v603 on the audio board. very interesting as Artie Johnson would say. the meter was not working and the meter uses v602b . so when i cleaned the pin holes the meter began to work.

i bought some tiny dental floss brushes and scrubbed out those pin holes. no more pop out or in. no fade as of yet

Kneebiter has the right idea to tap or wiggle components to hear if they pop and/or go out and/or come back. Thankfully now the Tram is working more than not. i think the t302 transformer was the biggest improvement. frequencies come together there and made it hard to diagnose.

i wiggled v302 and the man. rec. came back i must have really dirty sockets. i sprayed that electronic cleaner into all of the sockets and used a tooth brush to get into the pin holes. there is residue on the board like something spilled and dried up over the years the old t302 can kinda smelled...

I turned it on today and it started to fade as it warmed up i switched to ssb and back to get the rec to come back that works sometimes. i did notice when it came back xtal rec. worked but when i switch to the man rec. its not working but if it cools all the way down both will work for awhile. i...

its still ticking