Hi ,
I am searching for a high power amplifier for communication in VHF band . We have used RF6886 and need a similar or better HPA for similar purposes.
Please tell me about the parameters to be kept in mind and also some names of HPA if any which you know of . Also where should I begin my search ?
Thanks in advance and hoping to get a positive response .

 

What frequency and what power level are we talking about?

 

Vhf could be any one of a large range of frequency.
40MHz, 120 MHz, 170MHz, or 220MHz are common ranges with a public, non government portion.
Which one you operate on WILL determine which amp

 

http://www.thedxshop.com/linear-amp-uk-linear-amplifiers/linear-amp-vhf-uhf-amplifiers.html

If I knew where you are in the world I could link a more appropriate sales site

 

https://www.pasternack.com/images/ProductPDF/PE15A4018.pdf

 

The RF6886 is a chip. I think he is looking for a chip. I started by looking for surplus klystrons.

 

What frequency and what power level are we talking about?

We are looking for a downlink at 145MHz .

 

Yes mostly we would prefer a chip as we need to build a satellite with the selected HPA which has space contraints

The RF6886 is a chip. I think he is looking for a chip. I started by looking for surplus klystrons.

 

Yes mostly we would prefer a chip as we need to build a satellite with the selected HPA which has space contraints

The RF6886 is a chip. I think he is looking for a chip. I started by looking for surplus klystrons.

 

I'm sure you are aware that a variety of commercial and homebrew equipment exists for this band. Here's one:

http://www.w6pql.com/2_meter_80w_all_mode_amplifier.htm

Sorry, I'm not that familiar with appropriate chips.

Not cheap @65.00 and obsolete and out of production
https://www.rfparts.com/module/rfpower-mosfet/mosfetpowermod-vhfhp/sav36a.html