I have the same tester and keep a dryer sheet with it to get rid of the static on the meter it works great. I agree this tester is one of my faves for quick testing it does 90% of the tubes I need to test.
Luke. I have a Golden Eagle 750 that I purchased new in 1971. It was hardly used, because the Black JV2000 came available about 3 months after. The original tubes inside the the Eagle are 20LF6. I will run the voltage check on it when I get to feel a bit better and able to lift it.
I had a golden eagle 750 and a golden eagle 1K back in the day.,The 1K used 2 -27LF6 tubes driving 6-27LF6. I have seen the GE 750 with 31LF6 and 27LF6 also some later models used 31JS6 and even 31LQ6. I like the 30KD6 tube or even the 38/40KD6, a bit more dissipation then the LQ6 or JS6, but not as much as the LF6. It had a different pin out. I made many sweep tube amps with 30KD6. The easiest was 1 driving 3 with the filaments in series across a 120vac secondary of an 120:240 ct iso trans. The B+ was made with a quadruplet off the 240 vac of the 110:240 ct iso transformer. It was not the safest thing, but they worked. Fun times back in the late 70’s into the 80’s.
I remember when the Golden Eagle base amps came out in around 82-83 A couple of 750's one with gold face and one with black face they also hada 1kw model I think was also a black face. These amps was so heavy that they were shipped with the transformer shipped in a second box. I think when they came out they had 27lf6 tubes. They were made in small numbers as the maker had to move a few times to try and stay 1 step ahead of the FCC that was on a mission to shut down amp builders back then. I don't know or have not heard if the builder made any other amps other than the two models I am refering to here. I know more than one builder has made amps using the Golden Eagle name both mobile and base. If I have given any info that is not correct and someone knows better or more to the story please share.
Overdrivering sweet tubes is number one killer of amplifiers ... if you want more watts get a bigger amplifier. Does that make sense. Great video bbi. Ironman in Alabama 73s
First, I want to mention that when my shop was going strong, I had 4 of those B&K 747 tube testers going at the same time so I wouldn't have to wait for a tube to warm up. I think I still have 3 of them in cobwebs, (I loaned one out to another shop and never got it back), And they are the best testers I ever used for speed of testing with accuracy more than good enough to tell me tube quality. ... Second, I am confused about those tubes in the output stage being ruined by a shorted plate tuning capacitor. I would be very interested in exactly how they died. Was there any evidence of internal arcing or small pieces of grid wire floating around the inside of the tube, etc.... The reason I asked was because I repaired a customers amp using my used house (50 to 70% emission), test tubes. The customer (Wizard) brought his own set of tubes to retube the amp. I tested all the tubes in the 747 and they all tested very good, (90% or better), I put them in the amp, keyed up and saw very low output, (like 1/4 of the low numbers I was getting with the house tubes, and with the carrier dropping the longer it was keyed), that would not tune any higher with the tuning controls set at almost exactly the same positions where my used house tubes did,,,, I couldn't believe it so I put my house tubes back in and the amp worked just as it did before I put his new set of tubes in it. . To this day I still have no idea how that happened and it really bothers me because Wizard demanded I replace the tubes he brought in with a new set from my own stock, and I would not do it because my policy was that I would only warranty the tubes customers purchased from me, I would use tubes that customers would bring me, but I would not be responsible for the quality of the tubes or any damage caused to the working amp by that tube, If they wanted to see their amp run, I used my house tubes to test it before inserting the customer's tubes. We argued and that was the last time I did any business with Ralph. I am still trying to figure out what caused his tubes to go from 100% to only 30% emission almost as soon as the power was applied. I was hoping that you might know what happened to them and explain it to me. Dennis #12
I had a 750 and 1K come threw over the years. seems like made in 1970's . I don't know if was same that made the transistor amps . had one with MRF 450A and 454A anyways was bad tubes and filter caps. At the end of tube era on TV sets there was a lot of tubes made just sitting around very cheap around 1980 or so. many amp builders found a cheap source of tubes at the time . Now the stock of tubes is running out and price shot up. The fact that still works shows how well it was made. Now real RF tubes are still being made . 3-500Z 8877 811A 572/B ETC. I would buy extra tubes if you still can get them cheap . Sweep tubes are un likely to be made again. I no longer fix sweep tube amps because of tubes. some did have RF tubes. 6146B is still made in china but they don't last . and them old sweep tube amps are low drive. Some had a keying tube. I got a sonar radio new in box 30 to 50 MHZ 4 tube amp and only needed filter caps. going to re due tank to 6meters witch is just above 50 MHz . a rare find at ham fest. 73's
I bought the black face with white writing model Golden Eagle 750 when they came out in the early 80s it used 20lf6's I now have a black face with yellow writing Golden Eagle 750 that has 27lf6's. I also have a Golden Eagle 1k ( black with white writing) that has 20lf6's. The were basic Kenrich design.
I love whatcher doin man but it's hard ta be the biggest rf repair shop " bar none" if ya won't work on tube stuff. Stump Jumper out here in sw mo wavin!!!!
@@BoxBuilderIdaho thank you for the reply, I’ve played guitar for the better part of 25 years now and I’m 31! Haha greetings from the Jersey shore/pine barrens triple deuces
Can't remember if it is on your FB or not but I hear Western Electric in GA is gonna start producing more variety of tubes. Is there anyone besides them and Econco left in the states?
hi dont have a tub tester that thing loks god 4 its age .i wonder how yoy test a GU46 tube never seen a tester 4 it wish to have one so i can test ta kox of tubes i have
@@BoxBuilderIdaho As you said yourself the amps were built using the cheapest tubes at the time, not surprisingly in the later 70's and early 80's those would have been NOS tubes that were dropping in value like a stone as more and more TV's were being replaced with later models using transistors.
Yes have faith after I shut the camera off I went up into the house got a dryer sheet came back out here in the shop and made sweet passionate love to that meter till it was right
We do that on the big transmitters when the meters are questionable. It's usually the whole unit being temperamental but I have had a staticy meter cause issues.
@@BoxBuilderIdaho now that's just good comedy BBI. You said it on video right after I sent the message lol. I'm like, now I know this guy has got to know that trick as he knows everything else!! Love the tutorials bro!!!!👏👏🇺🇸
