Some years ago when I was building my receiver
bandpass filter/preamp units, I used used a broadband
preamp (1-30mhz, PC board model) preamp that I bought
from ARR. I used a broadband model as it followed a 7
element bandpass filter in the circuit (one filter for
each band, switched). I probably bought 30 of these
things and the only problem I ever had was when guys
didn't follow the instructions and install some kind
of circuitry to protect the preamp/receiver while
transmitting and receiving with a beverage/EWE,etc.
All of them were easily repaired BTW. I use mine
frequently on topband. I have actually thought of
stepping back in technology and designing a topband
preamp using a 6AU6 tube that the guys couldn't burn
up! I'm a satisified ARR customer.
73, Stew K3ND
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