Radio Theory and design

Monday, April 19, 2021

Antenna Book fo apartment dwellers

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Download here
Thursday, April 15, 2021

Turret board amp upgrade.

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    I will use the double row layout. First step is to layout the components.     I laid it out in spice so i could test the circuit. The si...
Monday, April 12, 2021

Amp, Coil, Turrets, Board

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 Had a little shop time. (rainy day)  Took the lid off an ice cream carton and made a coil form. I squared the material, Wrapped it around a...
Tuesday, April 6, 2021

Adding a pot to spice.

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 symbol file .ASY ************* Version 4 SymbolType CELL LINE Normal 0 -36 0 -48 LINE Normal 0 48 0 36 LINE Normal -20 -3 -9 0 LINE Normal ...
Monday, March 29, 2021

filter input to reduce 'noise'

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 Added C3 on input to modify the response.
Sunday, March 28, 2021

The amp response

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  Click EDIT Click SPICE Analysis Fill in the 4 blanks to define the sweep.
Monday, March 22, 2021

Rod tube radio

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 i nterested in rod tubes? This radio provides examples of their uses.
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