• You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.
  • Click here to find out how to win free radios from Retevis!

AL-811H


The al-811h is a good amplifier for what it is. Tune it properly, dont abuse it, and drive it conservatively and it will last a long long time. Its a great 500w amp. Install the gop board if you get the amp, a little added protection for those tubes. Lots of 811h haters out there but all with no real merit. Like nomad said, designed for ssb for the most part, not the high demand modes like am, fm, rtty etc. Read the reviews on eham, that will help you out also, to decide if its what you want
 
Last edited:
Not planning on using it on AM. I have read eham reviews until my eyes were sore, and it looks like a good amp. I will just be using it on the Ham bands.
Anyway I do appreciate the feed back from y'all. I know some people have had a bad experience with it, and some like it a lot. I'm still on the fence about it. Taking my time.
 
Last edited:
The only thing I have to contribute it that you have to beat the snot out of a small ameritron to get the advertised power. If you want a 800 watt amp I think you may have buyers remorse after the second set of tubes.

I would skip anything with 811s or 572b tubes. The AL80b is a much better amp and will make an easy 750 pep. You can get a nice used one for the price of a new 811H.
 
The only thing I have to contribute it that you have to beat the snot out of a small ameritron to get the advertised power. If you want a 800 watt amp I think you may have buyers remorse after the second set of tubes.

I would skip anything with 811s or 572b tubes. The AL80b is a much better amp and will make an easy 750 pep. You can get a nice used one for the price of a new 811H.

Ok, thanks for your input. I appreciate it.
 
0420201718_HDR.jpg
Thanks for the replies, good or bad. I decided to buy one, and it's been in the shack for a week now, and I'm diggin it. Nothing but good reports. It seems to go good wirh my IC 7300. Been using it on 20,40,75,and 160 meters. I'm only feeding it with 60 watts in, and getting 600-700 out. Once tuned I back off the input to 40 or 50 watts, and getting a solid 500+ out. Couldn't be happier.
 
I've got a problem with my 811H. Every time I call out CQ I get a pile up. Lol I've learned if your not ready to talk, don't use the amp. I'm totally impressed with this amp. Had a QSO on 40m yesterday that lasted 20 minutes, and the amp was nice and cool putting out 600 watts. This is what I was hoping for, and I'm getting what I asked for. I do tend to stay on 1 band way longer than I used to, because now I have to adjust the tuner, and the amp every band change. I guess that's one reason to buy a solid state amp, that follows your transceiver. It will cost 3 times more however. So for now I'm going Old school with amp and manual roller inducter tuner, with a high tech radio. I'm diggin it.
 
I've got a problem with my 811H. Every time I call out CQ I get a pile up. Lol I've learned if your not ready to talk, don't use the amp. I'm totally impressed with this amp. Had a QSO on 40m yesterday that lasted 20 minutes, and the amp was nice and cool putting out 600 watts. This is what I was hoping for, and I'm getting what I asked for. I do tend to stay on 1 band way longer than I used to, because now I have to adjust the tuner, and the amp every band change. I guess that's one reason to buy a solid state amp, that follows your transceiver. It will cost 3 times more however. So for now I'm going Old school with amp and manual roller inducter tuner, with a high tech radio. I'm diggin it.

Roller inductors? I still use clip leads and copper tubing. Cheaper and less finicky if they get some dust on them. I do prefer my high tech radio though. ;)
 
  • Like
Reactions: Tallman
I've got a problem with my 811H. Every time I call out CQ I get a pile up. Lol I've learned if your not ready to talk, don't use the amp. I'm totally impressed with this amp. Had a QSO on 40m yesterday that lasted 20 minutes, and the amp was nice and cool putting out 600 watts. This is what I was hoping for, and I'm getting what I asked for. I do tend to stay on 1 band way longer than I used to, because now I have to adjust the tuner, and the amp every band change. I guess that's one reason to buy a solid state amp, that follows your transceiver. It will cost 3 times more however. So for now I'm going Old school with amp and manual roller inducter tuner, with a high tech radio. I'm diggin it.

I bought a FTDX3000 about a year ago,sold off my TS-570SG & TS-480 to finance the
purchase. Even though I have one of the latest radios I still rely on a AL-80B & a
Palstar 1500DT tuner.
The newer solid state amps are convenient, ditto the auto tuners but the amps won't tolerate even a moderately high swr without shutting down & some of the auto tuners don't handle 160 meters well.
I'll stick with the dependability over convenience(Just a stubborn old fart) :LOL:
 

dxChat
Help Users
  • No one is chatting at the moment.
  • @ Mark Malcomb:
    Hello BJ. Been a long time since I've been on. You doing well? Mark Malcomb
  • @ Naysayer:
    I’m
  • @ kingmudduck:
    Hello to all I have a cobra 138xlr, Looking for the number display for it. try a 4233 and it did not work