This is the D&A model Raider amplifier.  This was yet another 2 tube, single stage design which put out about 120 watts of peak (PEP on SSB) power. This amp also had a receiver preamplifier built-in as well. Controls featured power, standby/operate, and receiver amp on/off switches. Next to that were the plate tune, band select and antenna load controls. A single neon bulb illuminated to indicate power on, and a meter indicated cathode current.

The band switch was a curious, but not totally unexpected option. The D&A company had all sorts of trouble with the FCC, when the manufacture of amplifiers that operated on the CB bands was declared illegal and tougher standards were enacted for amp manufacturers.  Additions such as the band switch and a crystal socket on other models were a feeble attempt to pass these off as "ham" transmitters and amplifiers, and disguise the "real" market for these amps.

I picked up one of these in the 1979 timeframe and this amp was quickly given the nickname "Baby Bertha", as it was the little brother of Cactus' Phantom 500, which he called "Bertha".  Like my older Contex, I changed the tubes to stronger (and also cheap then) 6LQ6 tubes, and added a cooling fan. My receive amp never worked right, and many other people who had similar D&A amps had the same problem. I chalked it up to a poor design. It wasn't a big deal though as receiver amps were of little use on the CB band anyway unless you had a really well made one and you were on SSB. 

Amazingly enough, I don't remember what exactly happened to this amp. I guess I either traded or sold it when I got my hands on my next amp, the D&A Maverick 250.