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Simple Tube DC SSB Receiver

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ANTENTOP- 01- 2015, # 019

Simple Tube DC SSB Receiver

 

 Credit Line: Forum from:

www.cqham.ru

 http://www.cqham.ru/forum/showthread.php?15497-Простые-ламповые-конструкции/pag

 

 

 

By: R3KCR, Voronezh, Russia

 

 

Figure 2 Design of the SSB Receiver

 

 

Figure 3 VFO Current

 

It is simple experimental receiver that was made on two tubes- twin triodes. The receiver was tuned to 80- meter amateur band. Schematic of the receiver is shown on Figure 1.

 

Video of the receiver is:

https://yadi.sk/i/BRXlyqr8evRf8


Audio of the receiver is:

https://www.evernote.com/shard/s556/...0%BE%D1%81.amr

 

It is usual DC Receiver with phase suppression of the second side band. Book “Direct Conversation Technique for Radio Amateurs” (Antentop 01- 2015, p. 88) gives information how to tune and adjust such receiver.

Figure 2 shows design of the receiver. Receiver consumes current 4.3-mA. VFO consumes current 2 mA. Figure 3 shows the current. Figure 4 shows shape of the RF signal of the VFO. Receiver could work fine with antenna in several meter length. It is possible use players low – ohmic headphones turned on through transformer or high-ohmic (2x 2000-Ohm) phones turned on to tube plate through capacitor 47.0-microF/16-V.

 

 

Figure 4 Shape of the RF Signal of the VFO

 

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Last Updated:

May 1, 2016 22:21

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