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Just an idea, why not tape off the clear meter cover & spray paint the flat black mask on? A few extra steps I know, however it might be easier than the electrical tape.

So much to learn about these tubes...

Would that be done by just removing that tube? Or rewiring? Can this amp then be run with a 1-2 watt am dead key?

Well that is good to know. I asked as the one I'm looking at has 9 tubes. I believe 2 driving 6, & 1 for a pre amp. If I'm doing this, I'm looking into replacing all of them if need be. So I need to have a plan to deal with the lone pre amp tube before I realize that all the tubes are half...

Just wondering,o wit be possible to run a resistor inline for one to reduce the voltage?? Or is that not acceptable?

I do understand the example of the 50 year old British sports car. I guarantee that the 8950 tubes cost a whole lot more than the asking price. I have been seeing that the socket can be rewired to work with the 6LB6 tubes. Lower output, however they cost less than 1/2 of what I'm finding 8950s...

Yeah, yeah I know, it's a tube amp. Tube amps are old crap, boat anchors, the hams let them die for a reason..... Read a bunch of similar comments online; I've also read a bunch of comments saying that tube amps are still worth while. I have been offered a working Pal 750B for $100. Is it worth...

The non variable version has 4 set power levels, as far as I can tell the variable version has 2 set power levels & then 2 with the variable pot to change things up ( I have never played with one before so I am not positive). The 4 standard power levels are Max (power button lit), high (power...

I think LooseCannon might be able to shed some light on that. IIRC, he mentioned that he had a Madison with a frequency counter, not sure if he installed it or not.

Sonar, I'm very sorry to hear that your disability won't let you do as much as you desire to. Now, as far as the 75 amp power supply, Amps x volts = watts. 75amps x 12volts = 900watts. Everything I have read the 500 loafs along at about 450-500 watts. Driven hard it can put out about 700 watts...

Gorgeous radio! Be really nice to see it all when you're done with the frequency counter install.

Sonar, keep an eye out for them on eBay. I have seen dx500 Texas Stars for sale the almost every week (I have been half-heartedly looking for a dx667 lately). Heck, you should be able to find a dx400 & swap in some 2879's a little biasing & have yourself a 500.

Thank you again for your time and insight. You pointed me in the direction I needed to go. Without your guidance, I'd still be beating my head against a wall. Thank you for the compliments on my work, it wasn't my best work, & far from the worst I've ever done. I've been trying to keep the...

Handy Andy, you sir are brilliant. I however, am no where near the level of understanding of most of what you have said. Thank you for your responses, input & information. I do apologise for not being able to understand most of what you posted. Thank you for your help.

Ok, I finally got it hooked up and working. I really don't know what I did different this time over last time. I have taken pics to show where I routed everything, & where I've soldered everything to. Before I started soldering the plug in, I did take a piece of shrink tubing to make sure that...

I did have a 100pf disc capacitor in line when I lost audio. Is J22 a plain metal jumper? I have a jv22 that is there. As far as a front panel mic, no this is a Uniden Grant XL I'm not sure that they are the same. I'm kinda thinking about powering up my spare radio, rigging the mic plug to...

Ok, now looking at the component side of the board, it looks as though TP3 & r107 are joined together. Am I correct in that view? Or have I missed something there?

Ok. My one reliable local just had his base start acting up, so he is unavailable for radio checks. That said, I did get a dx contact with 648 in the Idaho Rockies. This is after I have disconnected the center lead for the frequency counter, which means that the hum/ buzz is gone & my audio is...

I've already in hooked that wire. I just need to get one of the few guys in my area to give me a radio check again.

Ok, quick update... After reading this thread again, I noticed that TP3 was mentioned a lot. So, I unsoldered the center lead from where it was, turned the radio on & touched the center lead to TP3. Lo & behold, I got the frequency counter to give a reading. I soldered the center lead to TP3. I...