Here is the current arrangement of VHF UHF Brick Amplifiers I use during my Rove for the ARRL VHF Contest. 

• 2 - Mtrs   Teltec DXP C175 Amplifier - Amateur VHF Linear Amplifier

• 222 Mhx - RFC Concepts RFC 3-312  222 Mhz    

• 440 70CM - Mirage dTE Systems model 0550G 5-10 watt input and 375 Watts Output 

• 6 Mtrs - TE Systems model 0550G 5-10 watt input and 375 Watts Output 

Teltec DXP C175 Amplifier - Amateur VHF Linear Amplifier  

I use this  Teltec DXP 175 2 mtr brick amplifier for Roving during the VHF contest, and typically only run this at 100 watts with the FT-991A. Ray N3RG recently changed over the sticking relays in this older amplifier. This amp is rock solid and will produce up to 150 watts plus in a mobile situation.

Teltec DXP C175 Amplifier - Amateur VHF Linear Amplifier - link for schematic can be found here https://www.rigpix.com/linears/teletec_dxpv175-222_schematic.pdf

Link for the Teltec DXP 175 information https://www.rigpix.com/linears/teletec_dxpv175.htm

• RFC Concepts RFC 3-312  220 Mhz Brick Amplifier  

• 30 Watts in 120 Out

• Link to owners manual is here 

I will use this older RF Concepts 222 MHZ amplifier as a brick amplifier with my Demi Transvertor and FT-991A.  This amp will typically drive 80-100 watts in the mobile during the Rove.  222 Mhz amplifiers are difficult to find, and this is an older version that is still in good working condition for Roving.

MIRAGE D-1010- UHF AMP,10W IN-100W OUT,430-450 MHz

User Manual Link is here

I also use the Mirage D1010 older brick amplifier in the mobile during the VHF Contests. This ampl will produce 80 watts in my mobile set up. This is the older Mirage version which was purchased on e-bay for $100,  the amp will produce a maxium of 80 watts with my set up.

TE Systems model 0550G 5-10 watt input and 375 Watts Output 

Link for TE Systems 6b Mtr Amplifier

I will use this TE Systems 6 Mtr amp and set up to 150-200 watts for the VHF contest in my mobile system. The FT991A produces 100 watts, and when I utilize this amp I will drive it will low power from the FT991A and set up to not exceed 200 watts.  I purchased this amp from a retiring Rover in Florida, and it has performed well.