12, 24, and 48 volts????

[binrat]

Here is a link to RF Parts and you can check out some data sheets there.

BLF - RF Transistors

That BLF248 looks interesting.

 

[Captain Kilowatt]

That BLF248 looks interesting.

300 watts output at 28 volts supply voltage. Not too bad is it? The Larcan television amplifier module I have, as seen in the thread in the amplifiers section, uses the MRF151G which is very similar but requires 50 volts. It also has an output of 300 watts and the Larcan unit uses four of them to produce 1200 watts. Hopefully this weekend I can run out to Warren's place and install a few SMD caps to increase the efficiency of it by shifting the tuning more in favour of the 50 MHz range. It will still make 1000 watts without the mods but it takes more drive to do it. One module is producing 1000 watts with just 6.5 watts of drive. I also have another amplifier with four more MRF151G's in it but is tuned for the FM broadcast band and is class C so I think it may become a parts donor for another project down the road rather than a modification project.

 

[Mustang 131]

Good info guys....

So transistor amps are out.....

What are some of the tube amps to look for, that are neighborly friendly ?...

Depends on the operator. Most tube are not the problem...even sweep tubes. Nothing wrong with them but the prices of the tubes.
Any 11m amp builders worth a damm will build whatever you want. Most CBers rather cut covers then pay full price.

 

[dx31353]

Depends on the operator. Most tube are not the problem...even sweep tubes. Nothing wrong with them but the prices of the tubes.
Any 11m amp builders worth a damm will build whatever you want. Most CBers rather cut covers then pay full price.

Have you taken a poll? Done a survey?

Sent from my SCH-I545 using Tapatalk

 

[GnG8d]

Have you taken a poll? Done a survey?

Poll or survey to accomplish what exactly?

 

[dx31353]

Poll or survey to accomplish what exactly?

To know that "most CB'ers would rather cut corners then pay full price".

Sent from my SCH-I545 using Tapatalk

 

[Captain Kilowatt]

No survey required. Take a look at the number of cheaply made class C amps being bought up by CBers then look at the number of amateur amps they are buying. The class C cheaply made amps far outnumber the better made amateur amps.

 

[dx31353]

No survey required. Take a look at the number of cheaply made class C amps being bought up by CBers then look at the number of amateur amps they are buying. The class C cheaply made amps far outnumber the better made amateur amps.

If you say so.

Sent from my SCH-I545 using Tapatalk

 

[Captain Kilowatt]

I do say so therefore according to you yourself it must be true. Thanks for agreeing with me.
Actually having been in radio for over 35 years it is really quite plain to see what is being sold in quanties and where it is going. Not hard to see at all.

 

[dx31353]

I do say so therefore according to you yourself it must be true. Thanks for agreeing with me.
Actually having been in radio for over 35 years it is really quite plain to see what is being sold in quanties and where it is going. Not hard to see at all.

With a name like Captain Kilowatt one would have to assume you know what you are talking about.

Sent from my SCH-I545 using Tapatalk

 

[Captain Kilowatt]

With a name like Captain Kilowatt one would have to assume you know what you are talking about.

Sent from my SCH-I545 using Tapatalk

If you only knew how I got that name........oh hell I'll tell you. It has NOTHING to do with CB for starters. I spent 22 years as a station engineer for a radio broadcast network. One time I was at a transmitter site servicing it after a modulator tube blew. It was still on the air but had terrible audio. As per standard practice I had the announcer mention that we would be off the air for about ten minutes and would return shortly. He said "Don't worry folks. Captain Kilowatt is on the scene and will have us back ship shape in no time." The name stuck.

 

[dx31353]

If you only knew how I got that name........oh hell I'll tell you. It has NOTHING to do with CB for starters. I spent 22 years as a station engineer for a radio broadcast network. One time I was at a transmitter site servicing it after a modulator tube blew. It was still on the air but had terrible audio. As per standard practice I had the announcer mention that we would be off the air for about ten minutes and would return shortly. He said "Don't worry folks. Captain Kilowatt is on the scene and will have us back ship shape in no time." The name stuck.

Lol that's cool.

Sent from my SCH-I545 using Tapatalk