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Frequency counter
Direct conversion
receiver
Components
80m_40m transceiver

SSB_CW Audio Filter

4 channels VFO

2W- FM transmitter

Mixer

​40m_20m transceiver

​4 channels BPF

S-meter
1 channels VFO

2 channels VFO

​1 channels BPF

​2 channels BPF

LPF
chassis
IRT
Download

  JJJelectronics- 2 band VFO for HF  
  

  
*FET transistor for oscillator
*voltage regulator (Zener diode)
* Frequency:

    Band 1:  3.5MHz-3.9MHz.
    Band 2:  7.0MHz – 7.13MHz
Or
    Band 1:  7.0MHz – 7.13MHz
    Band 2:  14.0MHz-14.35 MHz
Or
    Band 1:  14.0MHz-14.35 MHz.
    Band 2:  21.0MHz – 21.45MHz
* 2 way switch
* Voltage 10v-14v
* Terminal for frequency counter (F-C)
*Variable capacitor with 20:1 reduction drive (10 full turns)(shaft is 6mm diameter 1/4"
  
Circuit diagram
silk screen
Build instruction
Buy Now
 for 80m/40m Pprice is £16.99 with free delivery to UK
included variable capacitor with reduction drive




for 20m/40m Pprice is £16.99 with free delivery to UK
included variable capacitor with reduction drive




for 15m/20m Pprice is £16.99 with free delivery to UK
included variable capacitor with reduction drive




for 80m/40m Pprice is £18.69 with free delivery to Europe
included variable capacitor with reduction drive




for 20m/40m Pprice is £18.69 with free delivery to Europe
included variable capacitor with reduction drive




for 15m/20m Pprice is £18.69 with free delivery to Europe
included variable capacitor with reduction drive



Buy Now
Buy Now
Buy Now
Buy Now
Buy Now