That Harmon Kardon TRIO 224 sounded intriguing, I found this
https://forum.polkaudio.com/discussion/105874/harman-kardon-trio
I came across another TRIO the other day, different manufacturer. They never mention 'pre-amp', but they show phono inputs, but they don't mention if phono eq and/or tape head eq exists.
HK 224 was new in 1958. Tape was stereo in 1956. LP stereo in 1958, soooo ...
The HK has a switch on the back, I suspect it is one set of low level inputs, and the switch sends that input to either an internal phono eq, or to a tape head eq circuit, then on to the amp. I want hard facts.
In any case, it is 12 wpc stereo, or 24wpc mono. I suggest you start your tube adventure with 30 wpc, so you can change to different speakers in the future.
https://forum.polkaudio.com/discussion/105874/harman-kardon-trio
I came across another TRIO the other day, different manufacturer. They never mention 'pre-amp', but they show phono inputs, but they don't mention if phono eq and/or tape head eq exists.
HK 224 was new in 1958. Tape was stereo in 1956. LP stereo in 1958, soooo ...
The HK has a switch on the back, I suspect it is one set of low level inputs, and the switch sends that input to either an internal phono eq, or to a tape head eq circuit, then on to the amp. I want hard facts.
In any case, it is 12 wpc stereo, or 24wpc mono. I suggest you start your tube adventure with 30 wpc, so you can change to different speakers in the future.