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tuning range on old TRF radios.
5/11/2014 1:03:57 PMjack
What was the average tuning range for those old battery sets. Heard that 1 radio could only go to 1200. On mine, no matter what I do. U can't go above 1000. Which would be okay.The radio has a lil (tap coil?) inside the radio. Where you move a hand like on a clock to touch one of 3 metal buttons. Have tried that and still can't go above 1000. 1000 is like 8-6-12 on the dials and 640 is 40-55-67.
Thanks, as always.
5/11/2014 2:00:05 PMNorm Leal
Jack

You are right. A lot of early radios don't go above 1200 but should tune above 1000.

Usually higher numbers are for lower frequencies with tuners closed. Your knobs seem to be on shafts 180 degrees out. Highest frequency should be with tuners open and knobs pointing to zero. Stations will be crowded together at the high end.

Not being able to tune higher means either your radio circuits have too much capacity or too many turns on the coils. Listing the specific radio may help.

Norm


:What was the average tuning range for those old battery sets. Heard that 1 radio could only go to 1200. On mine, no matter what I do. U can't go above 1000. Which would be okay.The radio has a lil (tap coil?) inside the radio. Where you move a hand like on a clock to touch one of 3 metal buttons. Have tried that and still can't go above 1000. 1000 is like 8-6-12 on the dials and 640 is 40-55-67.
:Thanks, as always.
:

5/11/2014 2:12:11 PMJack
Norm, Thanks.It's the 1925 Miraco Ultra 5 I have mentioned before. Maybe someone has that radio.


:Jack
:
: You are right. A lot of early radios don't go above 1200 but should tune above 1000.
:
: Usually higher numbers are for lower frequencies with tuners closed. Your knobs seem to be on shafts 180 degrees out. Highest frequency should be with tuners open and knobs pointing to zero. Stations will be crowded together at the high end.
:
: Not being able to tune higher means either your radio circuits have too much capacity or too many turns on the coils. Listing the specific radio may help.
:
:Norm
:
:
::What was the average tuning range for those old battery sets. Heard that 1 radio could only go to 1200. On mine, no matter what I do. U can't go above 1000. Which would be okay.The radio has a lil (tap coil?) inside the radio. Where you move a hand like on a clock to touch one of 3 metal buttons. Have tried that and still can't go above 1000. 1000 is like 8-6-12 on the dials and 640 is 40-55-67.
::Thanks, as always.
::
:
:

5/11/2014 6:20:58 PMDoug Criner
My Ultra 5 is the 1926 "improved" version. Not sure what the improvements were. My notes don't indicate the upper freq tuning range, and the set is not convenient to play right now.
5/11/2014 7:40:41 PMjack
:My Ultra 5 is the 1926 "improved" version. Not sure what the improvements were. My notes don't indicate the upper freq tuning range, and the set is not convenient to play right now.
:
Thanks, Doug


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