Radio Theory and design
Tuesday, June 27, 2017
195Khz to 420Khz receiver operates on 24 volts BC-1206
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It is 4" X 4" x 6-5/8". Sensitivity 3uV for 10mW output. The schematic with the parts list. What are the ...
Sunday, June 25, 2017
RF Probe
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Sunday, April 23, 2017
Mullard 1960 Semiconductor Reference
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How did Mullard make semiconductors? Read the book and find out. Mullard Semiconductor Reference 1960
Monday, April 10, 2017
download crossreference for Russian Diodes used in double balanced mixer test.
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Construction data for Russian components D9B Germanium point contact D311A is Germanium Mesa. It should have been as D312 with...
Thursday, March 16, 2017
"The Sliding Challenger" - by Pat Pending
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The following was offered by my friend Pat Pending as an exercise to build an amplifier with minimum parts using the EMOS. 3 watts from one...
Monday, March 13, 2017
Lambda diode oscillator using discrete JFETs
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lambda diode edit 3: The circuit consist of the lambda diode, a coil, and a 3 volt supply. It is driving a diode ring mixer. edit 2: T...
Wednesday, January 11, 2017
Putting the 80 meter receiver in one place.
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This is the circuit Tom posted. I modified the tuning and regeneration controls. This one works if you have the components. The modifica...
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