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Steve I would have to measure at the exciter. But the exciter goes

Chaucer was a ham? Barry - N4BUQ

Chaucer is turning over in his grave. Nice! [email protected]> wrote:

Aimless amusements.... I asked Chatgpt to write a poem about fixing a TR4. In the style of Geoffrey Chaucer, please: ----------- snip ------------ A Tale of Drake TR4, Wrought with Care Whan once

Ron, Haven't followed this thread but had a couple of random thoughts. Are you using the non-polarized PTT connector? ?Have you tried reversing it in case ?it is installed incorrectly?You should

Ron, what's the SWR at your exciter when transmitting? Can you hear the relay pulling in? Steve Wedge, W1ES Time flies like an arrow.? Fruit flies like a banana. Sent with Proton Mail secure

Got the solid state relay in my L4B this past week. Got her on the bench with my TR4C this morning. All cabled up When I key the xcvr in cw the amp shows no power output. Plate current abou 100ma but

OK, I'll do that! Thanks, Dave

Glad to help. I’m wrapping up a transmitter today and should be getting a receiver in. Keeps me busy… Steve Wedge, W1ES Time flies like an arrow. Fruit flies like a banana. Sent from [Proton

Look carefully for any signs of rework around the circuit. I seem to recall that you said that some switch contacts looked “funny”. Messing with switch contacts can ruin them. Check the

They are good fun! I still need to pair mine up with an available transmitter. For those of you who don’t want to spend big bucks on the can cap, there are also PCB’s available that attach to the

Nice going, Jay! It’s always a great feeling when you put the covers back on and fire them up! Steve Wedge, W1ES Time flies like an arrow. Fruit flies like a banana. Sent from [Proton

Mark, I was wandering if you still have any of the L4B Blower Wheel?? My email is good on QRZ 73, Ron ND4R

By the way, thank you for all the help. Tony

Okay, final report. Tonight I got on with the Friday night 75 meter group and tried her out. I spent quite a bit of time switching between lower and upper and even switching mic’s. The verdict:

All tubes tested good except for V2 and V17. I replaced both of them with 'new' ones I got from vacuumtubes.com. 73, Dave KD5FX

Yes, I tweaked the L2. and the other 2 also according to that section of the manual. I test the 6EA8 and it's OK too. 73, Dave KD5FX

I borrowed a friend's Xtal tester today and all 3 10 meter xtals test OK on it. Just to compare, I also tested the 15 meter Xtal and they all showed about the same amount on the test meter. So I think

I roasted my Drake 2B filter cap 20+ years ago by putting a manual on top of the radio and the resulting heat dried out the electrolytic. HUMMMM.... I've been "meaning to" fix this dude for a long

I had heard about some strange keying issues due to leaky diodes. I seem to remember either D7 or D9 causing trouble. With the two bad diodes, when you plug in a key and select CW, the relay pulls in