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I'm not sure where you are seeing that. Section 5-4 says simply "remove the screws and lift off the covers". Where you are instructed to remove the bottom cover specifically is related to the L4-PS

Got a reply but still confused. Why does the manual clearly say that the bottom plate must be remover first before the main top cover may be removed??? Makes no sense to me.? All I want to do is

Hi Steve, All good info. Thanks for you help! I have some jumpers with EZ hooks. Heat shrink on a small screwdriver is a good idea. The slug heights are exactly as stated in the manual, 9/16", and

Kevin I still troubleshooting a couple of things. The receiver in my TR4C just drops dead. I tap the top of the capacitor and it comes alive again. So, I'm not sure I need the VFO assembly. yet. In

Slightly OT but related are changes to the receiver alignments of the RF trimmers. Rob Sherwood found that by detuning the rear trimmers in the receivers, you could adjust the others without jumpering

No, the rotor contact of the switch wafer. The reasoning is to not have the various adjustments interact with each other. You want the broadest possible tuning. Using a screwdriver was probably the

Hi Steve, I haven’t tried the 80/75 meter alignment. I don’t have the manual in front of me at the moment but I seem to recall it says to use an insulated screwdriver to touch the switch rotor to

Have you tried doing the alignment on 80/75 per the manual? I believe it is set up pretty high in the band. I agree that you’re probably dealing with old finals based on the high band figures. Steve

I got around to replacing the grid resistors. I get the following now. 3.5 Mhz -75 watts 3.98 Mhz - 30 watts 7.2 Mhz - 100 watts 14.2 Mhz - 100 watts 21.2 Mhz - 40 watts 28.7 Mhz - 10 watts Unsure why

Tom, No Smoking. No pets in Radio Shack. No repaint. No Mods except repaired shaft for Resistive Knob. No external Balun. I have the TR7 and PS and several peripherals. I am selling the TR7 soon. And

Ok bill curiosity Exposed to pets smoke dampness. Any cover repaints. Any mods. B-1000 balun available Last worked with all functionality Why selling. Ur qth. Talk later. TU. Tom in mass.

Someone was seeking a Drake SL1800 Filter for the R7 or TR7, I have one. They are going for $80 to $90 on the bargain site. Mine is $70 shipped in CONUSA. Gary W0DVN

Drake MN 2700 Matching Network In very good condition. Maybe a little Windex may help. I am the second owner, No need for me to describe this "tuner". Drake guys are familiar.:-) $300 plus shipping.

Not that I recall. I would loosen the lower cover screws so you can get the top cover to come away easily. Gary W0DVN

Do you really have to remove the bottom cover before the top part of the case can be removed (so you can get to and replace the meter lamps)? W3RJ

Joe's answer is correct, but it is worth pointing out that the accuracy of any digital frequency counter display is going to be +/- 1 count. So technically your are still close to spec. With careful

Thanks Joe I thought that might be it but I wasn't sure.Sent from Samsung Galaxy smartphone.

If the rest of the radio is in alignment, adjust L1001 on the PBT/Reference board which adjusts the 40 mhz oscillator which is divided down to 500 khz for the display time base. 73, Joe Pyles KC9LAD

Can someone tell me what to adjust on a TR-7 when the freq is slightly off? My radio tunes 14.279.9 for instance on SSB instead of 14.280. Dan K9DTC

Yep, I'm working on a T-4XB right now that has no output of the CO and control of that goes through at least two switch wafers. V1.2 and V1.3 are giving me fits. they should be 1.6 and 4.2V,