So this video is not 100% applicable but it does bring into focus the potential of these radio's. This one is a TS-5010 and is running the MRF477 but my Lincoln has the OEM MRF455 in it. It has most of the modifications from Rodger Birds site for power, recieve, mic audio etc. I posted this because the radio appears to be NOS or at least close to virgin and makes a good reference compared to all the ancient rebuilt a million and one times HR2510 we see all the time on youtube. The shop is also reputable and his figures can be trusted. I am just some crank on the internet! LOL Mine is considerably hotter witht he MRF455 in it especially on SSB. Some of the low number's I see on the internet regarding these radio's and the HR2510, HR2600, 2830, President Lincoln baffle me. usually people like to exagerate their number's but with these radio's it seems to be the reverse. I am not sure if that is age and too many golden screw drivers involved or if peoples meter's are faulty or they just have no clue what they are doing? I am guessing the double sided boards and through hole soldering is the cause of a lot of this but not sure. I think my radio has a hotter than stock driver but the last time I had the covers off was in 1998 when I bought it. With all the fuss with Mosfet conversions and radio's with 6 mosfet finals to get to 90-100 watts of output swing I just thought I would bring up a little gem from the past. Not perfect radio's for sure but I have never owned a perfect radio and I do not think anyone makes a perfect radio!
Deadkeying
20 swinging to 60 pep is very respectable for a single bipolar final radio.
Deadkeying
20 swinging to 60 pep is very respectable for a single bipolar final radio.
I like the part "the old 477 final could manage almost 50w FM but not for long before tank circuit components fell off the board" 
