[Amps] Collins 8020 Amplifier

[Adrian Rees]

Hi guys
I'd appreciate your comments on the following...
 
I have been offered a Collins 8020 HF amp and matching 8030 Power Supply. 
I havn't seen the amp yet, and don't have any more information, apart from the fact that the vendor considers that its Valved (Tubed) and uses a 4CX1500.From an internet search, I have found a Collins 8020 HF Amp, with matching 8030 Power Supply, but the amp uses semiconductors. ie Transistors.
 
So you guys with a knowledge of Collins gear may be able to shed some light ?
 
I know its Rack mounted (which doesn't bother me) so I'm looking comments and thoughts about it. 
 
Regards
 
Adrian MW1LCR