looking for hifi mods. I got the 242-128 model
http://www.cbtricks.com/radios/ef_johns ... /index.htm
whiteface jonhson radio
- Goldfinger
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Change C24 to .1uF, 50 volt or better ceramic disc or mylar
Change C31 to .1uF, 100 volt or better ceramic disc or mylar
Change C35 to .1uF, 400 volt or better ceramic disc or mylar
Add a 22uF, 25 volt or better electrolytic in parallel with C33B, observe polarity
RX
Change C26 to a .1uF, 50 volt or better ceramic disc or mylar
Change C22 to a .1uF, 50 volt or better ceramic disc or mylar
More peak power?
Connect a 10uF, 450 volt electrolytic in parallel with R48 with the negative lead going towards the R56-R54 junction.
Change C24 to .1uF, 50 volt or better ceramic disc or mylar
Change C31 to .1uF, 100 volt or better ceramic disc or mylar
Change C35 to .1uF, 400 volt or better ceramic disc or mylar
Add a 22uF, 25 volt or better electrolytic in parallel with C33B, observe polarity
RX
Change C26 to a .1uF, 50 volt or better ceramic disc or mylar
Change C22 to a .1uF, 50 volt or better ceramic disc or mylar
More peak power?
Connect a 10uF, 450 volt electrolytic in parallel with R48 with the negative lead going towards the R56-R54 junction.
wwpdx
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- grasshopper
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