Hi all I want to convert this schematic from triode tube to transistor any help??

Thanks in advance

 

Look at this:

 

Try this circuit.

 

Look for booklets and plans from Modern Radio Labs. I think there's some at https://worldradiohistory.com/, but searching will find others. Also at Radiohistory, old books of transistor projects. Transistors used to be very expensive, so there was incentive to do as much as possible with a single device, hence regeneration. Some of the old ARRL manuals may have had regen receivers for VHF or something. But tubes are fun too. I made a regen set using a 1U5, high voltage was from a bunch of 9V batteries clipped together.

 

I suggest you run a Google of "One Tube early Radios. Next do a Google of 1 transistor radios. Note how the transistor takes the place of the vacuum tube or valve for out friends across the pond. The idea here is to come away with an understanding of how things worked. Plenty of fond old memories. Germanium diodes like the 1N34 pictured and then the CK722 Germanium transistor (PNP) type.

Ron

 

Try this circuit.

View attachment 290275

Hi

Thanks Sir for your response the circuit you provide is normal crystal radio

 

Look at this:

Hi thank you Sir for this interesting video but it's regenrative receiver the triode is a super-regenerative receiver

 

Hi all a gain and thanks for all
The grid is clear for me and the anode but the control grid is it the cathode ?

 

Here is another one.

 

Hi all and thanks for all once again

This is the closest I could reach any suggestions?

 

Here is another one.

View attachment 290278

Thanks Sir I do have ready made regenrative receiver
What I need is to clone the triode super regenrative as it is using transistor

 

What I need is to clone the triode super regenrative as it is using transistor

http://radiolamp.ru/shem1/pages/72/
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http://radiolamp.ru/shem1/pages/72/
View attachment 290285________View attachment 290286

Thanks Sir for this link I do own most the parts of those circuits do you have another Links contain the PCB even if for different design of super regenrative receiver
Thanks in advance

 

do you have another Links contain the PCB even if for different design of super regenrative receiver

http://www.radteh.ru/radiouparvlenie/5.html
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One more link: https://www.diagram.com.ua/list/radio/radio128.shtml

 

Hi all I want to convert this schematic from triode tube to transistor any help??

Thanks in advance

View attachment 290272

A good start would be simply to swap the triode for a JFET.
You might need a resistor in the source with a capacitor across it to set the best bias.

 

Hi all

This is the most close replacement