Motorola TT21 - 1967

Discussions about radios and tuners. Do you have an old radio that is giving you fits? This is the place to talk about them, along with stand-alone radio tuners, tube and solid state, stereo and mono.
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Motorola minion
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Motorola TT21 - 1967

Post: # 12877Post Motorola minion »

I figured I would post this, even though it post-dates Motorola's legendary tube equipment. It is USA made, appearing to be a plastic cabinet radio stuffed into a wood cabinet. I posted a GE of the same year that was similar except the entire radio chassis was made in Japan.

The funniest thing was seeing two 7-pin tube sockets on the underside of the chassis, only enough punched out on top side to put a transistor in. All hand-wired, with some dip-soldered on a vertical section for the audio. No transformer - hot chassis using only a dropping resistor and diode for DC power supply.
TT21a.jpg
TT21b.jpg
Then I noticed the luminescent backlit panel was dead, called "visilite". This glowed a green-blue, like on my Sylvania RM300.
TT21 .jpg
This was in a CL ad, though I saw it was SS, I could not resist for $20. It only needed cleaning, some alignment and a 5mf cap on volume control.
The very familiar Zenith (mini-console) table radio likely outsold these 10 to 1 :P
1967 table model.jpg
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hermitcrab
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Re: Motorola TT21 - 1967

Post: # 12890Post hermitcrab »

Never saw a motorola like that, are these tube chassis converted to solid state? funny but I also have that Zenith :)
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Motorola minion
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Re: Motorola TT21 - 1967

Post: # 12897Post Motorola minion »

hermitcrab wrote: ↑Wed Feb 15, 2023 2:30 am Never saw a motorola like that, are these tube chassis converted to solid state? funny but I also have that Zenith :)
My grandparents had that Zenith in Florida as their only plug-in radio, after having several forgotten consoles in the 30s-50s.
It sat on a large antique blanket chest in the dining room and when on, tuned to "beautiful music". Thought it was from same place as their Zenith color TV of the same year, selected to match ;)
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