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Hi Rob, Thank you for posting these six files. Chuck

BTW, the one with the long shaft is for balancing the carrier, along with the 10-turn pot. These three adjustments are in the same patch of real estate. Steve Wedge, W1ES Time flies like an arrow.

I turn it and it just spins and spins. doesnt seem to change anything. Ed [email protected]> wrote:

the one with the slot. If you are on frequency, you may have a bad crystal filter. Steve Wedge, W1ES Time flies like an arrow. Fruit flies like a banana. Sent with [Proton

Carrier oscillator is on freq. Sorry but I still dont know where C-6 is. Is it the big silver looking thing with a slot for a screw driver or the taller looking thing against the back of the chassis

OK guys, Here is an observation. I just cleaned the power connection and decided to check the bias again. All knobs turned to “0”. Now, on the RF tune I see a “0” in the 10 meter section. At

Film resistors will work fine. Use the same coils. The final tubes should be 6JB6's Steve Wedge, W1ES Time flies like an arrow. Fruit flies like a banana. Sent with [Proton

Check that your carrier oscillator is at 5645 kHz. C6 is the ceramic trimmer on top of the chassis, right-rear corner area. If your CO is on-frequency, you could have a bad filter. Rare, but it

My TR7A still has the annoying feature of not going to no signal. Steve Wedge, W1ES Time flies like an arrow. Fruit flies like a banana. Sent with [Proton Mail](https://proton.me/mail/home) secure

Peter, Oops... I meant 6JB6A's. The NOS 6JB6A tubes I see for sale are never listed as "matched pair".... is that going to be a problem? Thanks for the screen resistor advice. 73 Jay W6CJ

My T-4XC sounds decent on LSB but very tinny and pinched on USB. How do I adjust this? I saw a reference to adjusting C-6 but I can not find a C-6. Where is it? Thanks, Ed KG5UN

I don't actually know but suspect they are the same. Pillow stuffing would work OK and is likely cheaper. Anything sold for audio seems to become expensive. -- Richard Knoppow Los Angeles WB6KBL SKCC

I've wondered if the Acousta-Stuf Polyfil is the same as the Poly-Fil pillow stuffing one can buy at Walmart? 73 Stan KM4HQE

Rob — I read somewhere that the last version of the SE-3, with the addition of the "AR" switch on the front panel, involved only the addition of the switch and a 100k resistor. Can you please

Later TR7’s did not suffer this problem. It seems the pot was changed to one which got to zero ohms before the click. Gary W0DVN

Jay: Couple of things.... Suspect you made an error about the final tubes. *6GE5*'s wouldn't fit as they are 12 pin tubes, with the Plate on pin 7 instead of plate cap like the original tube, a 6JB6.

The R-4C has the same problem. It may go clear back to my original R-4. Rob, NC0B

Dave, I shipped an R4C (with PTO and other issues) to WB4HFN, who reported the NB was not repairable - parts availability. Before shipping the R4C with the NB installed, I tried alignment from the R4C

Hello, I am? looking for the part reference for the very small lamps used to display the buttons pushed state (Ep, Ig, STBY, OPR, ...). Thanks you.

Peter, Thanks for the reply. I always use an appropriate dummy load to initiate a tuning process. Once I establish max output I switch over to the antenna and re-tune and adjust. The output is