Emerson 1270 Portable

[Sandy G]

These Bad Boiz used the same CRT that the 8" RCA portables of the late fifties do. How good is the AM radio ? AA5 quality, or did they jazz it up a bit ?

[robert1]

Originally Posted by Sandy G

These Bad Boiz used the same CRT that the 8" RCA portables of the late fifties do. How good is the AM radio ? AA5 quality, or did they jazz it up a bit ?

It was just as good as a AA5 Superhetrodyne radio, considering that it used the same front end & I.F stages that a AA5 uses. the power was supplied by the sets power supply so there was no need for a rectifier tube. also, the outpit from the radio's IF was fed to the TV's audio stage.
the radio used 6BA6 & 6BE6

[wa2ise]

Originally Posted by robert1

the radio used 6BA6 & 6BE6

I think they were 4BE6 and 4BA6, or 3BE6 and 3BA6. They could have used one of the TV IF tubes as the AM IF stage, like in an AM-FM set. And some TV sets used a pentagrid tube for sync circuit work, and with some switching that tube could be used for the AM. Though it may be too much switching.